#paleontology

1 messages · Page 35 of 1

wary panther
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Real hot topic, what if Late Cretaceous America had a 2nd Apex Predator, besides all the other Tyrannosaurids

royal mural
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would be cool

wary panther
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Daktoraptor doesn't count if anyone is asking, it's pretty darn small compared to larger theropods that existed

royal mural
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Might have been possible in appalachia n stuff

woeful falcon
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A good point. Maybe some gigantic dryptosaurids

wary panther
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Appalachia could been sadly taken over by the Tyrannosaurs 😔

royal mural
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Could but also maybe descendants of european theropods

wary panther
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As far as we know, as soon as Tyrannosaurus get to "cook" they take everything and abuse the mid sized pred system

royal mural
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since it had a similar fauna i think

wary panther
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Giganotosaurus had a mid sized predator living with it, guess what Rex did? Evolve to be that Mid sized pred

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Thank god it got banned, bug abusing and stuff

clever sable
undone parcel
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to this day i say juvie rexes would hunt us as food while adults would probably rarely eat us

wary panther
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Can't believe Tyrannosaurus wanted to be the new big theropod of it's time by taking every niche

royal mural
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Im still thinking bout that island im sure something unique would have evolved there if it didnt die

wary panther
royal mural
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but im not even sure if it even existed bc it get portrayed so diff on many maps

royal mural
wary panther
royal mural
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It was literally isolated from mid triassic to mid cretaceous (if that map was true)

wary panther
royal mural
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yes im talking ab southern alaska

wary panther
# royal mural what

But as far as we know, any non avian dinosaur would have got wiped off the map

royal mural
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Bruh i said it lasted till mid cretaceous im not saying they survived till today

wary panther
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Damn this reminds me of the hollow earth theory, I thought it was fake (it is) but I thought it was movie fake

light osprey
wary panther
compact leaf
wary panther
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Another hot topic, Dromaeosaurs couldn't pounce and would instead latch at the neck

tranquil quartz
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I mean its not even a hot topic

wary panther
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I once remember my turkey that got attacked my a young falcon, the mass difference was probs 10 pounds

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the falcon legit latched it talons to its head, it would have died had I not stepped in

undone parcel
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off topic question, Paraceratherium biome/ flora, what would it be or would it look like

nocturne gazelle
# tranquil quartz I mean its not even a hot topic

I want achillos pounce to work like this and the smaller raptors have more of a "traditional" latch. Achillo could be a vertical ambusher getting bonuses while jumping or falling onto prey. Leopard playstyle fr fr. The smaller raptors could be more endurance based.

compact leaf
undone parcel
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thank you..planning a para screenshot in pk so this will help

covert lintel
light osprey
vocal breach
undone parcel
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depending if dakota is or is not a Unelaagine

vocal breach
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I have no idea what that means

nocturne gazelle
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I was speaking mostly in relation to game mechanics. But the closest comparison irl for raptors does seem to be large predatory cats.

vocal breach
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What is an “Unelaagine”

undone parcel
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Unenlagiinae, most famous is Austroraptor of PHP 2 which grew rouhly 20ish feet and was more then likley a Spinosaur convergent

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infamously may or may not contain pyroraptor

vocal breach
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YOU WHAT

undone parcel
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but Unenlagiines are like Abelisaurs where they are very Southern hemisphere based but a few may have cropped up in the north

vocal breach
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HUH, SPINOSAUR CONVERGENT

undone parcel
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bruh never watched Prehistoric planet 2

vocal breach
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Hollup explain the lore

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I need to know

clever sable
compact leaf
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austroraptor and a few other unenlagiines have some adaptations suggesting they ate fish

undone parcel
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credit Fredthe Dinosaurman/Fred Weirum

vocal breach
nocturne gazelle
vocal breach
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But I’m still confused by what he means “spinosaur convergent” like wtf

undone parcel
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cause they fished not that hard

clever sable
undone parcel
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also spinosaur like heads

vocal breach
undone parcel
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again this depends on the current Unenlagiine Dakota theory

clever sable
vocal breach
clever sable
# vocal breach But if it was

I mean, maybe, the legs also play a big part in this, if the legs are relatively short and sticky it likely wouldn't be a good pursuit predator

undone parcel
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classic legbone length thing

clever sable
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This is utahraptor, notice the relatively short legs

vocal breach
undone parcel
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notice how it will kick your insides into outsides

vocal breach
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Dakota has a slimmer build than Utah

clever sable
undone parcel
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i dont trust any current achillo depiction

vocal breach
clever sable
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Also in that depiction it is shown with shortish legs

undone parcel
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praying for achillo to get a better description

nocturne gazelle
light osprey
clever sable
undone parcel
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if i could wait 10ish years for the Turkana Grits Giant Abelisaur to bescribed i can wait 10 more for achillo to be described properly

light osprey
bright veldt
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This is implying Dakotaraptor exists, which it doesn’t

nocturne gazelle
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Rip dakota

undone parcel
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it exists it just depends if it exists as we know it currently

clever sable
bright veldt
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At best it’s a dubious taxa that’ll never see the light of day and at worst it’s just a large acheroraptor

vocal breach
bright veldt
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It’s pretty useless to take it seriously imo

clever sable
# vocal breach How does that happen

The situation surrounding it's description/discovery is very suspicious given that the guy who discovered it has a history of faking significant data and he refuses to let anyone even see the Dakotaraptor material

light osprey
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Potentially can be a cool taxon if it ever sees the light of reexamination

undone parcel
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is Dakota the turtle that supposedly in the chimeara, is it synonmous wioth Anzu, is it synonmous with Acheroraptor, is it actually a valid taxa, or is it a Unenlagiine

tough parcel
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How I sleep knowing Dakotaraptor is real 😴

bright veldt
# vocal breach How does that happen

When the person discovered it is a horrible person that’s been exposed for lying about the information in his studies while also refusing to let anyone else outside his little circle see the remains, you get a taxa that probably is full of bs

light osprey
tough parcel
clever sable
undone parcel
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never forget Mesozoica revealing it to early before scamming us all

light osprey
undone parcel
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people laugh at montanaspinus but i fully beleive at least 1 genus of spinosaur made it NA

clever sable
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Oh yeah, and iirc it might not even be a dromeosaur or something like that

bright veldt
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Eh, unless it’s some vagrant that crossed the ocean

tough parcel
bright veldt
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The reason we don’t see NA spinosaurs is cause NA was isolated for literally their entire evolution

tough parcel
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Oh but the paper never saw the light of day, it was rejected and the authors (iirc Naish was among them) gave up

undone parcel
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so we have a spinosaur, a supposed Hell Creek Therizinosaurus based off a toe bone, a NA Gigantoraptor and a NA Deinocheirid nearing Deinocheirus size......am i right so far..

tough parcel
sullen cairn
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paxaneri sucks

heady thunder
bright veldt
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That’s how it publishing studies works

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It might never get past the peer review and public release phase

light osprey
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So, none of the analyses held up

compact leaf
compact leaf
light osprey
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I feel like all these giant taxon would’ve been discovered with substantial material in deposits like the Hell Creek

undone parcel
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then again edmontosaurus isnt that common right?

compact leaf
tough parcel
clever sable
undone parcel
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at least compared to trike and rex we dont find as many fossils i mean

compact leaf
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I guess at least spinosaurid teeth are more diagnostic than others, you can tell sauropods apart from certain parts of the teeth pretty easily as well

light osprey
clever sable
tough parcel
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If we judged that way, Rex would be the most populous animal in HC

undone parcel
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i didnt mean population i mean as a fossil it isnt as common as thew other big ones

light osprey
tough parcel
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I think rex has more specimens than Trike

heady thunder
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Rex W.

undone parcel
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then you have Anky and Denversaurus which..just..you hardly ever find

clever sable
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Let's estimate sizes based on scale size

compact leaf
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big animals don't always fossilize well at all, look at sauropods they're huge but the fossilize terribly because of it

light osprey
clever sable
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Speaking of rare fossils, how the hell do we have a megalodon vertebrae?????? Shouldn't that be impossible?????

undone parcel
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isnt it suggested that the ankylosaurs lived in a different part of hell creek which probably had less chance of fossilizing?

compact leaf
# tough parcel Teeth! :D

I don't mean to drill you for information here but do we know where they're from and what approximate time?

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big paleo wants to hide the north american spinosaurids from us, and I'll bet they're hiding that elrhaz brachiosaurid paper from me too

light osprey
undone parcel
tough parcel
clever sable
tough parcel
light osprey
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Cenomanian Spinosaur from NA?

undone parcel
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i doubt spinosaurs wouldve lasted very long in NA considering all the other things here

light osprey
undone parcel
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cenomanian...uhh

light osprey
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I think some Cedar Mountain layers might be dated back then

undone parcel
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Siats was at the very end..94

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yea cedar mountain ends at 94 mya

wary panther
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Guys, I got nothing to do, I think Im going to attempt to clone dinosaurs

undone parcel
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make sure you feed bad people to them to fix our problems

wary panther
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Ok, understood

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I got chickens so, I'm closer then most people are

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But what I don't have is a rooster for fertilization, which I might be able to fix with new chickens

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But what I'm think is, breaking down a dinosaur bone into dust, and use the same procces used to get dna from meat/plants from the bone. Instead of trying to fill in the gaps, I would simply mix it with Rooster.... well you know and insert it in the chicken.

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I could also mix it with any known reptitlian, and I'd keep trying till I could find a match

compact leaf
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one problem, we can’t get dinosaur dna yet

wary panther
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😠

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I should test to see if Dna is even altered even when mixed with... you know

compact leaf
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I say yet because there’s some really weird developments occurring in molecular paleontology, but we can’t get it in the traditional way no matter what

wary panther
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Don't worry guys, I'll find some way to make a dinosaur

undone parcel
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pretty sure we only know one t.rexes gender conclusivly too.. B-Rex

clever sable
wary panther
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I meant non avian dinosaurs

ancient crystal
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Whatever happened to that T. rex soft tissue?

wary panther
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But if I can't get dna, I have to find out what I can get

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wait

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I'm going to actually try that, grinding up bone to see if I can get anything out of it

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Im getting my chicken rex if its the last thing I do

clever sable
undone parcel
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snd dont grind up fossils if you value any form of respect in paleo

clever sable
wary panther
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Guys Im not grinding up dino bones, Ill find some reptile or something

undone parcel
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...and or parasites/parasitical infections

wary panther
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Im finding some way to add longer tails on my chickens, I can barely see their tail, I'm also getting a jaw on them, and making them have longer fibula someway somehow

tough parcel
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Bruh what, they deleted it 😔 this is so sad guys

deft sigil
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This channel is for educational purposes. Please do not post off-topic subjects or troll in here. Refer to all our pinned guidelines in every channel you plan to use.

wary panther
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Heed my words paleo chat, I will turn Avian dinosaurs back to Non Avian someway somehow, believe it

tough parcel
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This is SO sad guys 😔

But afaik, you'd need genetic engineering to get chickens with tails and teeth

wary panther
tough parcel
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Oh idk the circumstances of dinosaur genetics, but the embryos tend to not be viable afaik

undone parcel
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probably cause those genes turned off for a reason

light osprey
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No such thing as cloning non-avian dinosaurs, you can genetically modify Avalian anatomy, but that’s inhumane, probably

tough parcel
woeful falcon
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I would agree to it being inhumane

undone parcel
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yes cause a chicken needs all the weight to fly

wary panther
wary panther
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Lets not talk about how we genetically engineered chickens to become fatter only to be crushed by their own weight

woeful falcon
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Lets talk about literally anything else

clever sable
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How accurate is this taco sobsucho

wary panther
tough parcel
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I hate the head so much, it's so bad-looking and there's evidence for cheeks too (in ornithischians in general)

wary panther
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Wdym? Taco looks good

woeful falcon
undone parcel
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i was gonna say theres like 16+ species to pull from and each one differs

tough parcel
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I am crying (sobbing)

wary panther
undone parcel
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i just know P. sibiricus is best species

wary panther
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But seriously though, this thing would act similar to modern day pigs

tough parcel
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(Probably not, ceratopsians are pretty heavily herbivorous)

undone parcel
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no this thing would be hateful and just terrible

wary panther
tough parcel
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I would say that for sure considering the isotopes say they do

undone parcel
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ceratopsians, especially small ones definitely would assault you and take fingers with their big beaks

clever sable
tough parcel
calm agate
# light osprey Gross

Grosser when you realise that the horns on the cheeks aren't horns but essentially fingernails and that this applies far beyond just Psittacosaurus

undone parcel
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i mean as a rulle im pretty sure most herbivores suppliment

wary panther
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Darn, I swore I saw someone talk about herbivores needing meat from time to time

light osprey
wary junco
clever sable
tough parcel
calm agate
tough parcel
undone parcel
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i do stand by small ones just being horrible devil creatures with Napoleon complexes

tough parcel
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??? Plants aren't exactly the most 3D of things, so when they're crushed, not a lot of information is lost

light osprey
clever sable
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It's the eyes that makes the taco look kinda weird to me

woeful falcon
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Clearly you haven't seen a 4th dimensional plant before

tough parcel
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True and real...

wary panther
undone parcel
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then theres Udano...that...that shouldnt exist and its existence scares me

tough parcel
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But most plant fossils are pollen and leaves, things that aren't exactly known for severe need to be uncrushed

calm agate
tough parcel
undone parcel
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no thats scarier

wary panther
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Eyes are kinda crazy

deft sigil
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Please avoid less serious topics in this channel. Make sure you read the pinned messages in all channels you plan to use. This channel is for educational purposes.

light osprey
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Slowly coming back to the goat

calm agate
tough parcel
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Hm

clever sable
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Could a triceratops bite a human in half

wary panther
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guys

undone parcel
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at most probaly a arm'

wary junco
light osprey
wary junco
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oh my bad, I get what you're saying now

calm agate
undone parcel
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.....its like a ball python..adorably squishy lookin

wary panther
calm agate
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Considering we made the reconstruction they shouldn't, I also did want to show the silly seeing-dents this animal has they're wonderful and stupid

wary junco
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I used to like psittacosaurus back in the day, then my eyes were opened to how horrific it actually is

wary panther
wary junco
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it's the jugal horns being nails that did it for me

clever sable
undone parcel
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the nose pad lookin thing...possible evidence as beginning of horn evolution or possible head butting/shoving

light osprey
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Real though, what happened to its big patagia

wary panther
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Guys Idk what your talking about, Taco is a very cute animal (trust):0

kindred night
wary panther
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on a related note im sure it could bite you're finger off though

light osprey
calm agate
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What's interesting is seeing it front-on you really see why it has the dents, because these... proto-crests? are really just in the way if the animal were to look straight ahead

undone parcel
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mild eye blocking

wary junco
light osprey
wary panther
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That fern looks, really modern. Crazy how much it didn't evolve

undone parcel
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does..P.sibiricus have the biggest juguals..i think it does...thats the only reason its my favorite

calm agate
wary panther
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Wait, isn't there a specimen that's "yk" is preserved?

undone parcel
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cloaca?

kindred night
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Yes

wary panther
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Yeah that

calm agate
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Yup that's this specimen, you can see in the image Okeanos posted the pads this individual has

undone parcel
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i vividly remember that day

wary panther
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I might get banned for this but, do we know how big it was?

undone parcel
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my therapists were questioning me why i interrrupted the session for this

calm agate
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I believe Christoff thinks they're scent glands, I personally disagree and think they're a hemipenal bulge which you see on a lot of male reptiles and even crocs

wary panther
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Were they as large as other animals that have them? Such as birds

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I would assume that they were no larger then golf balls

undone parcel
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i mean my leopard gecko has the bumbs but their..small so probably not that large

wary panther
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Man paleo chat just got a little wild

undone parcel
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why? itsa science

wary panther
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If we were simply willing to ask any questions and do any expirment, we would have answers much quicker

calm agate
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Happy to fill in any questions on the recon in general for thoes that have them

wary panther
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On a unrelated note, I've been arguing with some who thinks Giga beats Rex 60 percent of the time

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the thing spanned more then 80 comments 💀

undone parcel
tough parcel
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It's a model they made for the paper AFAIK

undone parcel
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ahh ok just curious

wary junco
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Yeah we were approached by the authors to create a reconstruction for the press release for the two papers

calm agate
undone parcel
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fair..would the species..be one of the bigger ones..

wary panther
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Anyone know where it was found?

clever sable
undone parcel
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i think it was...bought or something, i dont think we know locality or formation

calm agate
wary panther
light osprey
wary panther
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Never going to let my favorite theropod lose to another, got to keep that awsomebro energy up 🗣️

undone parcel
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.....now...whyd you gotta admit that

wary panther
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I'm just joking, I love my theropods fat and bulky with lips

light osprey
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To be perfectly honest the JFD and Nicholls model look like pretty similar interpretations of the specimen, so I don’t think the differences between them are a big deal

clever sable
undone parcel
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look theres 2 kinds of Awesomebro...1 is the JW fanboy who hates the progression of science and thinks t.rex is either a stupid animal or immortal in fight..and the 2nd is a "sane awesomebro" who likes the JW movies or whatever but can admit or acknowledge all the flaws and just loves them as dinosaur movies

undone parcel
calm agate
light osprey
calm agate
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Yup he's got full horns on the under and upper side whereas the actual specimen shows the underside being covered in flesh with the keratin growing in a sheet on the upper surface creating the fingernail comparison

light osprey
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I see

undone parcel
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would..Udanoceratops be a terrible animal in general cause it probabaly have napoleon complex like smaller ceratopsians but its like mini cooper sized and definitely could do damage and de-toe Tarbo

wary panther
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But it doesn't bother me, Rex is better fatter then Jp-er

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Also, it may be huge, but not impossible for a theropod, only theropod being Rex though, and it would have to be the abosolute largest

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Jesus I keep forgetting how big megatheropods are, just saw a diagram of them compared to elephants

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Hello? Anyone in paleo chat? No?

light osprey
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I’m here HappyCampto, to say, the Tyrannosaurus is perfectly plausible in most respects, with some very minor anatomical problems to the model itself

clever sable
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Uhhhhh, giganotosaurus skeletal

wary panther
undone parcel
#

around there

clever sable
wary panther
undone parcel
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there was Andesaurus and another giant

light osprey
clever sable
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Giga is my third favorite dinosaur, my favorite is acro and my second is rex

wary panther
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Just thinking about Giganotosaurus and how it evolved to strip meat off bones will never not be cool

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Rex is meh, advance theropod yes, but only real paleo nerds know the og design

clever sable
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Some cool rex Paleo art I found

wary panther
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I think I got a good one I found

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it was a rex eating a pachy

clever sable
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Giganotosaurus Paleo art

wary panther
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god you're getting all the good art, I can't even find one😔

deft sigil
wary panther
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Lol

bright veldt
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?? Since when was this a rule. Palaeoart has been a regular tool in discussion during this channel's lifespan and this is the first time that this has been an issue. I'm not against it but mind the inconsistency.

wary panther
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Crediting is crazy

wary panther
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Didn't we post paleo art without crediting?

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I posted the franoys model without crediting that guy

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Ragh

clever sable
wary panther
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Credit is at the bottom mods, please don't take it down

sullen cairn
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From now on we should cite every statement we ever make on anything including a link to a pdf or at least doi

bright veldt
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lmao

light osprey
wary panther
heady thunder
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Theyve only started enforcing the credit the artist rule recently, idk why, but they did.

clever sable
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Getting off topic though, so uhhhh, what's everyone's least favorite dinosaur? My least favorite is probably spinosaurus, it's cool but all the debates surrounding it make me hate it

bright veldt
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Same

sullen cairn
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Thanos

wary panther
sullen cairn
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Overscaled axis time

wary panther
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I hate the thanos dinosaur, it pisses me off so much 😠

bright veldt
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Its honestly easy to ignore

clever sable
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I also hate oxalaia, it's just spinosaurus but fragmentary

wary panther
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God this rex is ugly, not so good for paleo art tbh

sullen cairn
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The name isn’t

light osprey
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Kurupi itaata

wary panther
sullen cairn
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No

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Bad

wary panther
light osprey
sullen cairn
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: (

clever sable
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Eotrike when it's smaller than regular trike:

undone parcel
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sitting here just enjoying all names cause they have reason

clever sable
wary panther
undone parcel
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eotrike is literally just trike prototype before the puckerfactor

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dont know what 90%of these emojis mean and dont care cause my opinions are mine..

sullen cairn
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At least eotrike’s still similar to alberto size

wary panther
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hot topic: Sauropod Carcasses could provide home for small theropods

tough parcel
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Doubt a home considering the amount of predators (larger ones) it'd attract

undone parcel
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...moving on...to a non-who am i kidding any opinion in Paleo is a attack on someone out there..people will feel slighted because your opinion about x prehistoric animal is different..

light osprey
sullen cairn
#

Albertosaurus not albertaceratops

wary panther
light osprey
undone parcel
clever sable
#

Uh oh, a mod is typing

wary panther
stuck chasm
#

A general reminder for future reference. Please note that rule enforcement is determined by the staff team, and is not for personal interpretation. While we understand that users may not always agree with moderator decisions, but we will gladly listen to and answer any questions or concerns regarding server moderation via the @feral crane or our support #help.

wary panther
sullen cairn
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Me when my source is some journal from 1930s Central Asia that outright doesn’t exist online

wary panther
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What the mod said: We enforced rule, cry more kiddo

undone parcel
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majority of soviet era paleo

tough parcel
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The...the raptor

undone parcel
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yes its THE raptor

light osprey
bright veldt
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Here's the largest ceratopsids, and tbh are the only ones that go beyond the general size of 5 meters and 1.5-2 tons

clever sable
tough parcel
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Also, have some fat butts

bright veldt
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  1. Triceratops (8m, 7 tons)+
  2. Torosaurus (8m, 7 tons)
  3. Titanoceratops (7m, 6.5 tons)
    4+5. Eotriceratops & Sinoceratops (7m, 5 tons)
  4. Pachyrhinosaurus (7m, 4.5 tons)
  5. Pentaceratops (6m, 2.5 tons)
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This is ignoring controversial taxa that we don't really know what's going on like ojoceratops and nedoceratops

wary panther
sullen cairn
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Drumheller my beloved

tough parcel
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It might be too tall, but I'm waiting for something else now

clever sable
undone parcel
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does anyone know what happened to...Triceratops maximus...my only reference to it are..this kids book i had when i was like 5

sullen cairn
light osprey
clever sable
bright veldt
undone parcel
#

this book..should probably say credit is to Luis V rey..

wary panther
#

tyrannosaurus missed out on having giant claws

clever sable
undone parcel
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rex is the king of jaws while maip is the queen of claws..

tough parcel
wary panther
undone parcel
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mmm but spino isnt a Coelurosaur

tough parcel
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Spino arms aren't known, but the one metacarpal we have shows that Spino's hands are slim af

wary panther
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Oh my bad, I thought we were just talking about theropods

undone parcel
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its just fitting the "queen" to rexes "king" would be a related family like all classic monarchies

sullen cairn
#

Is also like 1/3rd of the size which slightly complicates the whole queen thing

wary panther
#

Megaraptors and Tyrannosaurus are a Duo many don't know exist

tough parcel
undone parcel
covert lintel
wary panther
#

Guys it was a satire joke

bright veldt
#

There tends to be a lot of convergence amongst theropods once past a certain size regardless of relation. A lot of people like to make fun of T. rex for its tiny arms, but carcharodontosaurs like giga have arms about the same size and just as meh in terms of use.

stuck chasm
#

This channel is for the discussion of past and present paleontological discoveries, scientific news, and depictions of prehistoric creatures in media in relation to palaeontology. Please stay on topic and refer to our ⁠rules and pinned messages before posting

undone parcel
#

cough abelisaurus cough

clever sable
#

So, since we have 3 rexes that are around and possibly exceeding 10 tonnes, is it possible 10 tonnes is just the upper end of average?

wary panther
covert lintel
bright veldt
#

The one decent giga specimen is 9 tons. Getting 10+ tons is almost a certainty just looking at how animal averages go.

wary panther
next moss
undone parcel
#

not taking into account if the 10 tonners arent examples of gigantism

clever sable
wary panther
#

We haven't found MASSIVE specimens of these kinds of animals, we've just been getting really lucky and unlucky for deciding mass

covert lintel
clever sable
bright veldt
#

The smallest "adult" tyrannosaurs are individuals like Stan, and they're still like 8 tons.

wary panther
clever sable
undone parcel
#

id say a rex is full grown by like 29 considering it dies in like 2 years at most

sullen cairn
#

Sexual or skeletal maturity

light osprey
wary panther
undone parcel
#

uhh depending if they stop growing till death

bright veldt
#

Yeah rex is not properly mature at 16 lol. More like early 20s. 16 is sexual maturity if Jane was breeding age despite still being pretty juvenile-esc in build.

clever sable
wary panther
#

But seeing how big reptiles can get I really doubt we are that close to a Maxium size

#

Largest Saltwater crocs are at 1 ton

covert lintel
#

my two cents is that defining "fully grown" as "at the end of its average wild lifespan" seems a little bit unhelpful, esp. when talking about average sizes

bright veldt
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IE most mature edmontosaurus individuals being 9 meters in length with only the largest and oldest reaching shantung sizes

sullen cairn
#

Average annectans is at 5500kg

next moss
wary panther
undone parcel
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god imagine a shant living that long then

bright veldt
wary panther
#

Wait, victoria isn't smaller than stan??????

wary panther
undone parcel
#

if the oldest Edmontosaurus can hit Shant sizes...how big would shant be at those ages....

wary panther
sullen cairn
#

Is there any actual evidence that the giant edmontosaurus are abnormally old

bright veldt
#

I mean I'm just assuming

undone parcel
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itd have to be old...

light osprey
#

Skill issue

sullen cairn
#

Hadrosaurs hit skeletal maturity pretty fast

wary panther
#

Lets assume average Edmontosaurus weight was say 6 tons with a maximum of somehow 16-17 tons, if shant has a comparable growth spurt and the environment isn't much different then we must be capping 26 tons maybe

light osprey
#

Sounds high, I’m gonna say no

covert lintel
sullen cairn
#

Projected maximum size 🤢

wary panther
#

to assume the average for shant is 16 or 18 tons then maybe

bright veldt
#

Keep in mind Shant's ecology might've been different from other hadrosaurs if it's size was the norm. It likely would've suffered less from predation given how it's like, 3x larger than the apex predator it lived with, which is abnormal compared to most hadrosaurs.

wary panther
light osprey
undone parcel
#

also isnt it inferred that Shant took over the Sauropod niche

sullen cairn
#

At least some hadrosaurs have pretty low mortality rates until they hit skeletal maturity but I’m not sure about edmonto

bright veldt
#

Hadrosaurs and sauropods are both generally high browsers regardless of size. Nemegt had a collection of hadrosaurs and sauropods at similar sizes to each other.

sullen cairn
#

I’d have to check I think it’s in that RMQ paper

undone parcel
#

barsboldia...is that one Nemegt...yea cause i recall it cameoed in the Oasis scene in PHP

wary panther
chilly knot
wary panther
undone parcel
#

wasnt Bar decently huge too...

sullen cairn
#

Bars is like 6-7t I think

bright veldt
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6.5 tons give or take

wary panther
#

Guys I think the mods are asleep

undone parcel
#

so not Shant huge but definitely impressive..

light osprey
wary panther
#

all it takes is one @

bright veldt
#

Not quite actually

stuck chasm
#

Please keep this channel on topic, and avoid posting off-topic gifs.

bright veldt
#

Saurolophus generally comes up smaller than Barsboldia. I think giant saurolophus comes from if you lump bars's material into saurolophus, which is a fair interpetation but controversial at this current time.

light osprey
#

Oh?

wary panther
#

mods are very angry

undone parcel
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isnt Asian Saurolophus like twice the size then american

sullen cairn
#

Giant saurophus is if you don’t use fadeno’s bobblehead

bright veldt
#

Basically. American saurolophus is basic hadrosaur size.

undone parcel
#

....so...like 4 tons?

bright veldt
#

Average hadrosaur is..like... 8-9 meters and 2.5-3 tons

wary panther
tranquil quartz
#

I think the moral of the story is that Hadrosaurs were pretty big

bright veldt
#

Here's all hadrosaurs above 5 tons

wary panther
#

Hadrosaurus are still fodder, trust

undone parcel
#

would Parasaurolophus fall under basic..

bright veldt
#
  1. Shantungosaurus (14m, 16 tons)
  2. Edmontosaurus (15m, 14 tons)
  3. Parasaurolophus (13m, 12 tons)
  4. Magnapaulia (12m, 10 tons)
  5. Angulomasticator (12m, 9.5 tons)
    6, 7, 8. Amurosaurus (11m, 7 tons), Charonosaurus (11m, 7 tons), and Gryposaurus (10m, 7 tons)
    9, 10. Barsboldia (11m, 6.5 tons) and Prosaurolophus (10m, 6.5 tons)
  6. Saurolophus (10m, 5.5 tons)
  7. Tsintaosaurus (10m, 5 tons)
light osprey
#

So how does S. angustirostris compare with good attributed material

undone parcel
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wait wait.. when was Para bigger then "Big Paul"

wary panther
#

Bad ending: Shant is actually just composed of multiple hadrosaurus 😦

#

Luckily that's not the case

bright veldt
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It's based on the species. P. walkeri is 9 meters and 3 tons, so pretty basic hadrosaur. The other two species are much larger though. P. tubicens is 12 meters long and 8 tons, while P. cyrtocristatus is the largest by far.

#

"I hate constructive paleontological convervsation. Spam T. rex art till it stops"

undone parcel
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definitely not a rex fanboy

next moss
light osprey
#

New topic, how do we feel about Sciurumimus and Scipionyx

undone parcel
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adorably skrimpy...but beautiful preservervation

light osprey
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No… I mean… their phylogeny 😈

undone parcel
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.......not carchs or whatever i can say that much

bright veldt
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afaik Sciurumimus is rn just "coelurosaur" with not much else known

light osprey
#

So, you’ve taken your side AlioAAA

bright veldt
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Scipionyx meanwhile is most likely a hatchling allosauroid

undone parcel
#

what did compsognathid change?

light osprey
bright veldt
#

Compsognathids in general most likely are not all juvenile carcharodontosaurs like the paper tried to suggest. Compsognathus, Ubijara, and Sinosauropteryx were all mature animals.

undone parcel
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all i know is skippy was a very very young baby when it died i know that much..

#

i do agree that compsognathids are..problematic cause it seems just every small dinosaur gets thrown in there

bright veldt
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eh not really

undone parcel
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not literally but its very full

light osprey
bright veldt
undone parcel
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the stupid one that tryed arguing compsognathids were juveniles of other things

bright veldt
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It's not really that stupid though. With scipionyx in particular (and likely other compsognathids only known from juvenile remains) it makes a lot of sense.

undone parcel
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skippys the only one for me cause it died like probaly not even a few days after hatching so that one makes sense

light osprey
#

The paper itself I think only sights a few examples of juvenile material which gets tossed into Compsognathidae.

bright veldt
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Compsognathidae in general is likely in a bit of a mess. We know there's a proper clade in there given there's still closely related proper taxa, but its highly possible that the "compsognathid" form is how most young theropods look and thus is likely an overlumped group.

undone parcel
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its like how PHP gave the baby raptors a basically universal body type cause they probabably hardly differed

light osprey
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I find that some of these juvenile taxa exhibit filamentous integument, helps broaden Teturan’s capacity for those depictions, and logically it fits because blah blah ancestral to Ornithodira or something.

undone parcel
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cut to Luis V Reys feathered allosaurus

covert lintel
bright veldt
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Again, compsognathus, sinosauropteryx, and ubijara all have specimens that were definitely adults. Others are much less clear tho.

light osprey
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Yeah, interesting though that the paper raised possible doubt about C. longiceps curious where that comes from

undone parcel
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probably because they come from places with amazing preservation

#

look the paper was...Cau right..?

bright veldt
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Even if the compy specimens aren't mature, I would greatly question it because the ecosystem they lived in just could not support large theropods unless they were very specialized.

light osprey
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Yeah it seemed like a loose thread, clearly not the main focus of the paper

bright veldt
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The Solnhofen region at the time was an archipelago where the islands were absolutely tiny and arid, with the biggest plants being meter-tall bushes, and the only available terrestrial prey is tiny birds and pterosaurs.

undone parcel
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i think it was Cau but i can confidently say i only ever knew them for Sauroniops

bright veldt
sullen cairn
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naish and cau made that eotyrannus monograph too

undone parcel
#

can i admit...i liked quad spino it looked cool..

light osprey
#

Oh?

sullen cairn
#

he helped describe that kem kem abelisaur too which had some content on general kem kem biota as well

bright veldt
light osprey
bright veldt
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Yeah I got vibe checked by the censorship bot twice

undone parcel
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also funny how in 2014 we got perhaps the biggest news with spinosaurus but also a Transformer spino

light osprey
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I’m inclined to like this paper specifically

#

Let’s spread the good word of protofeathers to all the Tetanurans MetriSip

sullen cairn
#

speaking of which why was everyone giving siats feathers back in 2013

undone parcel
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....feathers were big and siats was the new big theropod io guess?

#

cause i remember this was also when fluff rex was huge too

light osprey
sullen cairn
#

it was described as an allosauroid

undone parcel
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i think it still flips between megaraptoran and neovenatorid

light osprey
bright veldt
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I put it as a neovenatorid and not question it's placement or question neovenatorids as a group for my peace of mind.

sullen cairn
#

anyways gualicho

undone parcel
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i thought they were just a sub group within carcharadontosauria?

bright veldt
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Gualicho is pretty firmly a noasaurid. It just has a history of bad phylogenetic studies that say otherwise cause they were bad.

light osprey
sullen cairn
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neovenator itself is fine it's just everything else likes flying everywhere else

#

gualicho's a taxon

undone parcel
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venator is definitly one of the best words in a name..

undone parcel
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i got it..Neojeager

sullen cairn
#

the good ending
gualicho/deltadromaeus - noasaurids
megaraptora - pantyrannosauria (if it stops killing itself)
siats/chilantaisaurus - megaraptora
bahariasaurus - nonexistant

undone parcel
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no give me giant noasaur bahariasaurus

bright veldt
#

siats and chilantaisaurus tmk are probably whatever 'neovenatorids' are

undone parcel
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i think both flop between neoventorids and megaraptorans

bright veldt
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they do but neovenatorid seems to be the current accepted interpeation

light osprey
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(I wonder what this message said, oh well)

undone parcel
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i just want a german theropod with jeager in the name..

sullen cairn
#

noasaurids are ceratosaurians

tranquil quartz
#

Kenyan Giant Description

bright veldt
sullen cairn
#

i don't have much of a stake in the siats/chilantai game i just think they're neat

undone parcel
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i just like big theropods

light osprey
light osprey
undone parcel
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the internet never forgets

#

someone mentioned the..Turkana Grits Abelisaur...the paper is in production

sullen cairn
#

in all seriousness though megaraptoran siats and chilantaisaurus would both be kinda weird in the context of megaraptoran distribution

undone parcel
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why for chilantai? theres a couple asian ones

light osprey
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I’d rework the good ending and stuff both of them in as basal Carcharodontosaurs

sullen cairn
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not in the turonian

undone parcel
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that we know of

bright veldt
undone parcel
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never say never in paleontology unless proven otherwise

sullen cairn
#

the good good ending where someone redefines pantyrannosauria

light osprey
bright veldt
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thats implying neovenatorid traits are decent enough to even qualify as a group

#

like the clade's entire existence is a "meh"

light osprey
undone parcel
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is...it possible for there to be NA megaraptorans

bright veldt
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I mean yeah. They've been around enough. All the definite megaraptorans have stuck to gondwana though, or very close to it.

light osprey
#

These asians ones I think were mentioned, what are those

bright veldt
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They're still southeast asian

undone parcel
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very basal

tranquil quartz
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Is it possible for Maastrichtian Carcharodontosaurids

light osprey
#

Temporally where do they sit (the Megaraptorans)

bright veldt
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Possible, but very unlikely

undone parcel
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no carchs were a loss with the turonian turnover

sullen cairn
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just let me have gres a reptiles

tranquil quartz
sullen cairn
#

megaraptorans are barremian-maastrichtian maybe berrisian/hauterivian if you include sibiricus

light osprey
undone parcel
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nowhere where the abelisaurs or rexes took over

tranquil quartz
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Not even some little guys like Conc or Alti?

undone parcel
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maaybe..but i highly doubt past the campainian

sullen cairn
#

it's possible but potential allosauroid records post-turonian are just teeth and other fragments that keep getting reassigned to abelisaurids

light osprey
bright veldt
#

Ok lemme correct. There's only one definite megaraptoran known from outside Gonwana: Phuwiangvenator from Thailand. And like someone said prior it's one of the most basal megaraptorans.

light osprey
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Oh that one is super early

sullen cairn
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and fukuiraptor ig too in japan

undone parcel
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isnt fukui shaky

bright veldt
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Nah

undone parcel
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no fukuivenators the one with shaky ties

bright veldt
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Fukuiraptor and Puwiangvenator are megaraptorans, and the only definite ones that aren't megaraptorids.

undone parcel
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isnt there another one in SEA

sullen cairn
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vayuraptor could be one but that's shaky

bright veldt
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I tried to find it, cause I thought there was more than one as well, but it's the only one I could find.

undone parcel
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werent they all from the same formation as Ichthyovenator and Siamotyrannus

bright veldt
#

Ye

light osprey
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Usually cladistic discussion here is about the convoluted nature of Titanosauria, glad to see Teturanae is equally crap

sullen cairn
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there's also a tooth in thailand from a different formation that could be megaraptoran

undone parcel
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theres like 2 or 3 cladistically ok groups..everything else hurts

sullen cairn
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maybe sibiricus in russia but I don't know if mortimer got that comparing it with chilantaisaurus or an acutally established megaraptoran

bright veldt
undone parcel
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dont you love how teeth converge to look similiar cause they fill the same purpose

#

this reminds me of uh....Sinopliosaurus...it was argued between plesiosaur/pliosaur and spinosaur over teeth...cause the teeth both convereged to look the same..and I think it was settled upon pliosaur..ignoring my immediate hate how its Sino animal name

light osprey
#

Only tooth taxon I like is the Vega Islands one, because the authors said it shows shared traits of Edmontosaurinis, so either throwing a spanner in Hadrosaur distribution or the authors forgot Kritosaurini existed

sullen cairn
#

and then you have megaraptorans in south america from the albian-maastrichtian, australia from the aptian-cenomanian, and maybe maastrichtian new zealand and albian africa

undone parcel
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then you had PNSO who made their Sinopliosaurus a freakin Icthyovenator type spinosaur like what..

light osprey
tranquil quartz
#

Ok unrelated to the topic at hand but a curious question of mine, what is the single most important fossil/ specimen that was confiscated/ stolen due to illegal fossil trade?

sullen cairn
#

takakita grit

undone parcel
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ohhh thats good

light osprey
#

Don’t know the exact details, I think I. challengeri might fit the book for it

undone parcel
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uhhh all of europes collections?

sullen cairn
#

real

tranquil quartz
#

Just worldwide

chilly knot
#

Speaking of Siats and megaraptora

undone parcel
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anything from Tendaguru and mongolia pre60s-70s

sullen cairn
#

i hope people didn't take the good ending seriously

#

(besides noasaurids because they're cool)

undone parcel
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isnt Siats just the holotype

light osprey
bright veldt
#

I mean with the exception of the neovenatridae thing the other 3 things you said are literally correct

sullen cairn
#

pantyrannosauria's just funny as a group though

bright veldt
#

fair

undone parcel
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some clear this up for me is it saying Siats is a tetanuran?

sullen cairn
#

siats is a probable allosauroid

light oxide
#

Siats . . . is Siats at this point. XD

light osprey
undone parcel
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...how..complete or good is the material..

sullen cairn
#

pelvic/axial elements iirc

somber tartan
#

What herbivores lived with torvosaurus

undone parcel
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whatever lived with allosaurus

light oxide
#

Depends on the formation.

bright veldt
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It's the morrison formation. A lot did.

undone parcel
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in lourinha just replace stego with mirigaia

somber tartan
#

The big one

next moss
#

Oh yeah morrison has a lot of sauropods💀

bright veldt
undone parcel
#

or alcovasaurus if you will

sullen cairn
#

anyways the actual point here is that bahariasaurus is actually a tyrannosaurid or something and an adult deltadromeus because trust me bro i read that somewhere

light oxide
#

Stegosaurus, Diplodocus, Miragaia (most likely, based on Alcovasaurus), Apatosaurus, Camptosaurus, Dryosaurus, Brachiosaurus, and much more.

bright veldt
light oxide
chilly knot
#

There's allegedly undescribed cranial stuff from siatsshrek

undone parcel
#

hardly any known pterosaurs

bright veldt
#

tldr on Bahariasaurus is...it's probably synonymous with deltadromeus but it's remains are dead and uninteresting so it might as well not exist

chilly knot
#

Aight bro tomorrow, okay?

undone parcel
#

so..you know how Saurophaganax is radioactive

sullen cairn
#

there's that probable siats type thing from idaho too

light osprey
undone parcel
sullen cairn
#

(it's an isolated centrum)

light oxide
light osprey
undone parcel
#

so we know Acrocanthosaurus was all over america effectivley..,and it went extinct..before siats appeared right..

light oxide
undone parcel
#

what if..siats replaced acro in distribution

sullen cairn
#

is from texas and wyoming
maybe has some teeth from maryland
yeah bro it's all across north america

bright veldt
#

Eh why not

undone parcel
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i lump capitlasaurus as acro cause it makes sense

sullen cairn
#

ik teeth and maryland just don't go well together

light osprey
sullen cairn
#

case in point astrodon
ew

storm heron
#

North American Carcharadontosaurids, now that is an interesting topic

sullen cairn
#

there's also allosaurus medius from maryland which is a potential carch

bright veldt
#

atm literally only acro, in that regard it's a bit of an anomaly

undone parcel
sullen cairn
#

siats is mussentuchit which is cenomanian at the earliest

light osprey
undone parcel
#

yea so basically right after acro is gone

chilly knot
#

There's Carcharadontosaur material from the Lewisville formation that shares some features with Siatspaulowine

undone parcel
#

i mean...they are the most..uniform looking animals..

sullen cairn
#

wow guys now it's not just teeth it's teeth and a chevron

light osprey
#

For simplicity and logic, it sounds like Siats replaces Acrocanthosaurus’ role. Now, what is it

undone parcel
#

if we try reaaly hard we might get a chest

sullen cairn
#

carcharadontosauria is the objectively more based choice

#

(megaraptoran is kinda aesthetic though)

light osprey
#

So Neovenatorid is a go?

undone parcel
#

nevenatorid might become just a way to describe a body plan instead of a family

light oxide
#

Apparently, this is all the fossils we have on Siats so far:

chilly knot
#

Chad Siats outcompeting and replacing the virgin Acrocanthosaurus very real and true

light osprey
sullen cairn
#

that's like how species work right guys

undone parcel
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its less acro was outcompeted and..went extinct

light osprey
undone parcel
#

hey..concs cool

sullen cairn
#

the chad ulughbegsaurus turning itself into a dromaeosaur

#

shaochilong again stands alone

chilly knot
#

Based

light osprey
sullen cairn
#

neovenator dumbass phalange arrives

light oxide
tranquil quartz
chilly knot
#

Nuh uh

light osprey
#

Big Macronarians disappear from North America for a bit? Correlation possibly

tranquil quartz
#

Yuh uh

light osprey
light oxide
#

Hmm . . . Ima take a look at the suggested time zones of the prey items for Acro to see if it's correct.

sullen cairn
#

some mussentuchit stuff (that I could find skeletals for last month)

storm heron
#

Is that a Nodosaur or a basal Ankylosaurian?

sullen cairn
#

peloro

#

so nodosaur

storm heron
#

Ah, pretty big.

chilly knot
#

Plot twist: Siats turns out tyrannosauroid and Moros is just a juvi siatsrapture

sullen cairn
#

plot twist: allosaurus is a juvenile giganotosaurus
you see giganotosaurus is earlier because the allosaurus grew up and they became heavier so they sunk from north america to south america

chilly knot
#

As a Canon event inspector from the spider society, I can confirm

tranquil quartz
#

Plot twist: Gigantoraptor likes kfc

sullen cairn
#

plot twist: mongolian tyrannosaurs got big because gigantoraptor kept eating them

light osprey
light oxide
#

Interesting -- both Acrocanthosaurus, Astrodon, and Sauroposeidon seemed to have disappeared around 110 million years ago . . .

sullen cairn
#

and then siats was killed by lythornax

chilly knot
#

Holding back the urge... nooooooo

light oxide
#

And Astrodon and Sauroposeidon are the two known sauropods that lived with Acrocanthosaurus.

Though Tenontosaurus was still kicking around for 2 more million years.

sullen cairn
#

astrodon is a very reasonable very valid taxon

light osprey
light oxide
#

Huh . . . What Macronarians were with Siats?

light osprey
#

Whatever Tables posted idk

sullen cairn
#

abydosaurus

chilly knot
#

Also an undescribed titanosaur I heard

compact leaf
#

siats is at the tail end of cedar mountain right?

sullen cairn
#

mussentuchit

#

so yes

compact leaf
#

a few brachiosaurids were probably around or adjacent to it then too

sullen cairn
#

yeah abdyosaurus is also mussentuchit

#

sonorasaurus is same general timeframe as well

light osprey
#

So must’ve been the climate that killed Acrocanthosaurus

light oxide
# sullen cairn abydosaurus

I was just about to say something about Abydosaurus once I found out that it could've been in the same time period as Siats. XD

light oxide
tranquil quartz
sullen cairn
light oxide
#

Interesting . . .

#

Based on the information there . . . Siats could be a carcharodontosaurid that turned allosaurus-like in build, to compensate for the lack of sauropods.

sullen cairn
#

do we really know much about siats' build though

light oxide
#

That is yet to be answered.

tranquil quartz
#

What dinosaurs most likely skipped leg day

sullen cairn
#

majungasaurus

light oxide
#

Especially when there's a supposed cranial part of Siats.

light osprey
compact leaf
light oxide
#

. . . Huh -- what's the size difference between Acrocanthosaurus and Siats?

#

That is up to date, of course. Since we don't have all of Siats . . . Yet.

compact leaf
#

not in all of north america but in some places probably

#

eastern north america could have anything going on tbh

sullen cairn
# light oxide True.

pretty similar in length but siats usually ends up a good bit lighter because it gets reconsturcted from neovenator

light osprey
compact leaf
sullen cairn
light oxide
#

Hmm . . .

bright veldt
#

Acro was the heavier set animal, siats specimen being subadult or not.

light osprey
#

So what suggests the possibility of immaturity

bright veldt
#

slight lack of solidification in the bones

#

Even if you upsize it to 12m for a speculative adult it's still smaller than acro so meh.

sullen cairn
#

siats uses projected adult size
disgusting

chilly knot
#

Should've put a 13m speculative adult in the backgroundchad

sullen cairn
#

I firmly believe that any speculative adult size siats is more cringe than megaraptoran siats

light oxide
#

I wonder . . .

Normally, the larger you are, the longer you can go without food, but you also would need a LOT of food to maintain the size.

Could it potentially be that the Acrocanthosaurus were a bit of an unoptimized size for what the prey was around at the time of its disappearance, with Siats being more optimal size wise?

Just speculation, of course. But an interesting thought.

bright veldt
#

Eh it depends. Acrocanthosaurus tmk likely lived in a more stable environment given its growth rates.

#

Other carcharodontosaurs like giga, mapu, and meraxes lived in arid af deserts so they grew a lot slower.

sullen cairn
#

anyways lambor's paying for my therapy now

west coral
sullen cairn
#

scaled the skull of a mount

light oxide
sullen cairn
#

me

light osprey
light oxide
#

Well, at least it's safe to say that it's most likely not a megaraptoran like what most people think.

sullen cairn
#

the sigma 7000kg adult siats killed the cringe fran

sullen cairn
#

hence why it's no longer in the comparison

chilly knot
#

It's true

compact leaf
light osprey
#

So, Cenomanian Carch is right on track with the rest of the world, North America being cool and normal

light oxide
# light osprey Never say never

True.

Hell, Siats may also have been megaraptoran for all we know that somehow ended up in Acrocanthosaurus's real estate and outcompeted them, somehow. But that's unlikely until we find more fossils of Siats.

sullen cairn
#

be a megaraptoran because L
enter north america in the cenomanian
die immediately after

#

mussentuchit's technically albian-cenomanian but I don't care

stiff osprey
#

he used all his evolution points into becoming the size of a carch and had none left to actually be good at living

sullen cairn
#

the real reason megaraptorans don't get bigger than 3t

light oxide
#

Meanwhile, Camptosaurus here still figuring out ways on becoming bigger than previously thought.

chilly knot
#

Realized size isn't the right skill tree for megaraptoran build

flat pond
#

Muttaburrasaurus from PK looking good.

sullen cairn
#

"Was Siats a bad animal?"

light oxide
compact leaf
light osprey
flat pond
covert lintel
light oxide
compact leaf
clever sable
#

Acrocanthosaurus > siats

sullen cairn
#

camptosaurus getting bigger was more of someone made a size comparison of a specimen we've known was big for 40 years

light oxide
#

Still a funny thing to meme about. XD

sullen cairn
#

2t campto's been a thing since the 80s

light osprey
#

2000kg? I think it’s time to get on the cut smh

stiff osprey
#

everyone simply chooses to forget about it, an understandable decision

sullen cairn
#

i blame pot in part for everyone thinking it's tiny

#

although it was never prevelant in the first place tbf

light oxide
#

Same.

#JusticeForCamptosaurus

light osprey
sullen cairn
#

poor campto

woeful falcon
#

Isn't that a one off campto tho

Like an excessively large one in a myriad of specimens not as large? Someone correct me if I'm wrong

sullen cairn
#

yeah it's exceptionally large for a campto

#

still campto's were pretty frequently hitting at least half a ton iirc

light oxide
#

Think I may have found PK's concept art version of the Morrison Formation (well, at least of portion of it):

stiff osprey
#

RIP PK Ornitholestes

sullen cairn
#

why is nasicornis like amnh 680 size

stiff osprey
#

speculative sexual dimorphism, now why is allosaurus dentisulcatus sized

sullen cairn
#

that things not even DINO sized

woeful falcon
#

Oh ye ofc.

I'm 900% sure the big campto has a mount at my museum. I went there a few years back and looked at the descriptions to see what it was, and when it said camptosaurus I was like "christ on a bike why is it this huge"

sullen cairn
#

i think it's in minnesota or something

woeful falcon
#

Ye ye that's where I am. So def same

sullen cairn
#

but like actually why's 680 so small

woeful falcon
#

Its trying its best ok

light oxide
#

Hmm . . . Theory -- the large Camptosaurus is a male, with the smaller ones being females. (Or maybe even the opposite.)

AKA, sexual dimorphism.

astral kelp
#

Blub aren't you supposed to be dead?

woeful falcon
#

Only in kto

covert lintel
light oxide
#

XD

woeful falcon
#

The updated campto seems a lot better I will say, from both a look and a size perspective

sullen cairn
#

the ceratosaurus is like very generous kenton vertebrae sized and 680's below average allo sized

#

or that tooth

covert lintel
#

ngl i do get a little sad sometimes, thinking about how it's hard to tell whether or not a prehistoric species is sexually dimorphic without a massive sample size (and also. yknow. readily apparent dimorphism in the skeleton (or other remains if ur very lucky))

sullen cairn
#

why do you explicitly make it amnh 680 and then gut the size

#

just say jimmadesni at that point

stiff osprey
#

i do find it funny that they predicted 680 being Allosaurus sp. in like 2015

sullen cairn
#

call it ceratosaurus sp. and pretend it's qg 65 because larramendi says it's ceratosaurus

#

problem solved

stiff osprey
#

my favorite allosauroid tibia!

sullen cairn
#

when'd it become an allosauroid?
granted the most recent reference to it I could find was 2012

stiff osprey
#

it doesn't really have distinguishing features, it was considered an allosauroid in the first paper and then larramendi kinda just nah'd

#

if it's the one from subsaharan africa i'm thinking of

sullen cairn
#

zimbabwe

#

a couple papers ~2010 refer to it ceratosauria at least if I'm remembering correctly

light oxide
#

The same concept artist (MoriceMonkey93) also made concept art for the sauropods of the Morrison Formation, Prince Creek Formation, Yutyrannus, and Baryonyx:

stiff osprey
#

It's been so long since I saw a wisp tailed apatosaur

compact leaf
#

back when all their sauropods were megachunky

sullen cairn
#

carrano and sampson suggest ceratosauria

stiff osprey
#

it's a femur? thought it was a tibia

sullen cairn
#

you thinking of tendagurensis?

stiff osprey
#

possibly

sullen cairn
#

zimbabwe ceratosauria is two ~990 femora

#

Just checked and larramendi doesn't even mention carrano and sampson 2012 when talking about the thing

light osprey
sullen cairn
#

bravo larramendi

light oxide
light osprey
light oxide
#

Troodon no longer exists -- it can no longer harm us. XD

sullen cairn
#

found marginally more information from rauhut and lopez-arbarello 2008

#

now what I don't get is how larramendi got it at 8.4m when it's 9.1m scaling with mortimer's measurements
larramendi undersizing a ceratosaurian feels wrong

stiff osprey
#

he does undersize a lot of abelisaurs

sullen cairn
#

and then there's his lametasaurus and dryptosauroides

light oxide
#

Different measurement techniques, maybe?

stiff osprey
#

shrimply pre-grillo

sullen cairn
#

grillcourt my beloved

#

i don't understand how larramendi absolutely butchered the indian majungasaurines but majungasaurus itself is spot on in length

compact leaf
#

I think he just gets a little trigger happy sometimes and applies the same techniques to animals that he shouldn't, like what happened in his 2020 titanosaur downsizing bender (granted some of those were warranted but still)

sullen cairn
#

and then there's this which i don't think I'll ever understand

white matrix
storm heron
#

Wasnt the post crania of Indosuchus re-assigned to Rahiolisaurus?

somber tartan
#

I found a thing that I like, and I wanted to point out that this guy and his tone of voice, like the entire way that he speaks, it’s like really perfect for capturing people’s attention, and the only other thing that I could think about while listening to him was like
If this guy were to talk real dinosaur facts to like, children, I feel he would really catch their attention, which would be really good because then children would actually listen to what he has to say, and learn actual dinosaur facts, not like those really bad children’s books that show inaccurate depictions of prehistoric life

light osprey
lapis lintel
#

does anyone have any knowledge or information on what ceratosaurus's crest was used for? i saw something online about an extended nasel... something? but i know its related to the carnotaurus in some ways... can someone help me out as i see a lot of different opinions (ceratosaurus is my favourite dinosaur)

stiff osprey
#

Most likely used for display, Cerato's crests are very thin and wouldn't be useful to hit anything with

#

I guess they could work as shades too, sort of like the eye stripes of big cats and some other animals

lapis lintel
#

so you think something like attracting a mate or something? like maybe the male would have a larger more colourful crest to impress a female?

stiff osprey
#

Definitely for the first half. But not necessarily the second, in dinosaurs males and females both have display structures

#

Trike's frill, Stego's plates, Dilo's crests, all are display structures and (as far as we know) both genders have 'em

lapis lintel
#

kinda disappointed that it wasn't used in any physical way but it makes more sense, similar to dilophosaurus's crest it probably wasn't very practical and had other unique uses

tough parcel
#

My theory is that we've only been discovering male dinosaurs because the females don't actually have the display structures, but instead there's like a single one female that everyone mates with B)

stiff osprey
#

Oh no

lapis lintel
#

i do love ceratosaurus though since it was the underdog of its time if i understand correctly and was able to hunt and compete with allosaurus and other similar carnivores as it wasn't as large... am i also correct in knowing that ceratosaurus would also hunt its own species?

tough parcel
#

It's like a reverse "Ring of Fire" dragon

fallow stirrup
#

Question

tulip dove
fallow stirrup
#

Do u guys think raptors like Utah raptor or Dakota raptor could mimic sounds like modern day birds?

tulip dove
lapis lintel
tulip dove
stiff osprey
#

I've heard conflicting ideas on how Cerato hunted, some say it targeted proportionally larger prey because of its longer, more bladelike teeth, others say it targeted small prey because its skull was not very stress resistant

fallow stirrup
lapis lintel
#

huh, well thanks for ur opinions on cera

stiff osprey
#

The Morrison was probably an african savannah type situation, with multiple predators competing for the same prey, but the prey is at such high number and diversity that they all coexist anyway

lapis lintel
clever sable
#

My conspiracy theory: all the spinos we have found are male and only the males have the big spino sail and the females have the shorter sail like in ichthyovenator

magic jacinth
#

Are synapsids basically highly derived reptiles that are mammal like or, there is not much connection besides being amniotes is there?

tranquil quartz
stiff osprey
#

the females are sigilmassasaurus 🙂

clever sable
lapis lintel
stiff osprey
magic jacinth
stiff osprey
#

not familiar with reptiliomorpha, I'll check

lapis lintel
#

@fallow stirrup good question though, i think the misconception of jurassic park velociraptor being able to open doors has made people think they're smarter than they are, sure they were a lot smarter than any other dinosaur at the time being a dromeasaur but it wouldn't have been crow smart ^^

stiff osprey
#

Huh, yes they are reptiliomorphs, but not reptiles. I guess that makes sense since it translates to ''reptile-shaped'' and early synapsids looked a lot like reptiles, but still, very deceiving name

#

should just be amniotomorpha or something

magic jacinth
#

gotcha, I think reptiliomorphs was confusing me cause of its name having reptile in it.

fallow stirrup
magic jacinth
#

so many clades SCcatPOG

fallow stirrup
#

Another question is could mosasaurs of been venomous? They r related to monitor lizards r they not?

tranquil quartz
#

Maybe, doubt their venom would have really been potent though due to their bites

stiff osprey
#

They were almost certainly venomous, but in most monitors the venom has little to no effect in hunting, which probably was the case in mosasaurs

fallow stirrup
#

Makes sense

tranquil quartz
#

Yeah they weren’t killing anything with it

stiff osprey
#

Though if a mosasaur bit you and then let go you'd probably suffer some sort of horrendous side effect

#

Other than, y'know, the side effect of having a missing limb or large chunk of torso ripped out

tranquil quartz
#

The chance of surviving that is literally like 2%

clever sable
stiff osprey
#

Just gets in through the wounds made by the teeth, it's not injected like snakes

tranquil quartz
#

They ooze into their preys wounds almost

clever sable
stiff osprey
#

If they could inject it maybe it would be a lot more potent than it actually is

tranquil quartz
#

It serves its function for the komodo though

bright veldt
#

Venom seems to be minimal in varanoids in general

#

They’re most impactful in heleoderms but in that group it serves a defensive function

tranquil quartz
#

I have a question about toxins in general,
Have any palaeontologists estimated how likely it was for Temnospondyls to be poisonous?

#

Or atleast some members of Temnospondyli

stiff osprey
#

to my knowledge they have not, as amphibian poison sacs can't preserve under standard fossilization. But it probably appeared at least once considering it's present in all modern amphibians

jagged trellis
#

esp seeing how wonky intelligence is

ebon eagle
#

That’s real life, not a video game played by people

bronze storm
#

Are you sure we are real

bright veldt
#

I mean you’re the one saying that said accurate sized megalania wouldn’t work because of more realistic reasons

stiff osprey
#

Not gonna lie, they're right. In a game you don't back off from a fight because you lost 0.01% health to a tail whip