#paleontology
1 messages · Page 35 of 1
would be cool
Daktoraptor doesn't count if anyone is asking, it's pretty darn small compared to larger theropods that existed
Might have been possible in appalachia n stuff
A good point. Maybe some gigantic dryptosaurids
Appalachia could been sadly taken over by the Tyrannosaurs 😔
Could but also maybe descendants of european theropods
As far as we know, as soon as Tyrannosaurus get to "cook" they take everything and abuse the mid sized pred system
since it had a similar fauna i think
Giganotosaurus had a mid sized predator living with it, guess what Rex did? Evolve to be that Mid sized pred
Thank god it got banned, bug abusing and stuff
And even current reconstructions of Dakotaraptor may be too big because they guy that discovered it has a history of faking data and refuses to let people measure it even see the Dakotaraptor material
to this day i say juvie rexes would hunt us as food while adults would probably rarely eat us
Can't believe Tyrannosaurus wanted to be the new big theropod of it's time by taking every niche
Im still thinking bout that island im sure something unique would have evolved there if it didnt die
We aren't getting skull island brah
but im not even sure if it even existed bc it get portrayed so diff on many maps
nah but i hope a unique fauna or smth
Not possible brah, Some invasive species ( humans) probs wiped them out
what
It was literally isolated from mid triassic to mid cretaceous (if that map was true)
Oh, I think we were talking about some theory or somethin
yes im talking ab southern alaska
But as far as we know, any non avian dinosaur would have got wiped off the map
Bruh i said it lasted till mid cretaceous im not saying they survived till today
Oh, cool
Damn this reminds me of the hollow earth theory, I thought it was fake (it is) but I thought it was movie fake
Cladograms on their way to banish them to Unenlagiinae 🗣️
Wait, NO DAKOTORAPTOR???@!!!!!?!?!?
I love it when things get banished to unenlagiinae
Another hot topic, Dromaeosaurs couldn't pounce and would instead latch at the neck
I mean its not even a hot topic
I once remember my turkey that got attacked my a young falcon, the mass difference was probs 10 pounds
the falcon legit latched it talons to its head, it would have died had I not stepped in
off topic question, Paraceratherium biome/ flora, what would it be or would it look like
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.
it covered a pretty wide geographic area but it seems like there’s a general trend towards it inhabiting more dry environments, some leaning towards deserts others just try temperate
thank you..planning a para screenshot in pk so this will help
being able to latch on wouldn't really make it unable to pounce, no?
Dakotaraptor still, but not at all a Dromaeosaurine. Or so some say
So essentially, achillo is a leopard, Dakota (or at least what I think is dakota) is a lion/wild dog (pursuit), and Utah is a tiger/bear (ambush)
depending if dakota is or is not a Unelaagine
I have no idea what that means
I was speaking mostly in relation to game mechanics. But the closest comparison irl for raptors does seem to be large predatory cats.
What is an “Unelaagine”
Unenlagiinae, most famous is Austroraptor of PHP 2 which grew rouhly 20ish feet and was more then likley a Spinosaur convergent
infamously may or may not contain pyroraptor
YOU WHAT
but Unenlagiines are like Abelisaurs where they are very Southern hemisphere based but a few may have cropped up in the north
HUH, SPINOSAUR CONVERGENT
bruh never watched Prehistoric planet 2
All of the big guys were likely ambush predators iirc
austroraptor and a few other unenlagiines have some adaptations suggesting they ate fish
credit Fredthe Dinosaurman/Fred Weirum
Some more reliant on ambush then others I assume
Common Fred W
But I’m still confused by what he means “spinosaur convergent” like wtf
cause they fished not that hard
They were heavily built but also were likely not good pursuit predators implying ambushing
also spinosaur like heads
I’d assume Dakota would be better at pursuit than Utah because of its slimmer build
again this depends on the current Unenlagiine Dakota theory
We got no clue if it had a slimmer build because we got no clue where it's placed
Just say they fished, anything including “spinosaur” will make me piss myself
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
classic legbone length thing
This is utahraptor, notice the relatively short legs
This is what I currently go by, until new Dakota material comes along or some new study is released imma follow this
notice how it will kick your insides into outsides
Dakota has a slimmer build than Utah
That's the Wikipedia size comparison which are known for not being the best
i dont trust any current achillo depiction
I don’t know any better ones unless you would like to provide
Also in that depiction it is shown with shortish legs
praying for achillo to get a better description
Cya in 5-10 years
Theropods with conical teeth
Here are a couple, but once again this slender build is based on it's placement and some material that likely has been incorrectly measured as to provide a bigger size and it's a chimera with a turtle
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
Nah those are good, they used Scott Hartman’s skeletal
This is implying Dakotaraptor exists, which it doesn’t
Rip dakota
it exists it just depends if it exists as we know it currently
I mean, it might, it's dubious but not completely invalid, although if it is valid our current reconstructions are likely very off
At best it’s a dubious taxa that’ll never see the light of day and at worst it’s just a large acheroraptor
How does that happen
It’s pretty useless to take it seriously imo
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
Potentially can be a cool taxon if it ever sees the light of reexamination
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
And it's a chimera
How I sleep knowing Dakotaraptor is real 😴
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
Oh it’s real? Then what is it huh 💅
A spinosaur
My guess is that it exists but is likely much smaller than we thought and likely looks nothing like we thought
never forget Mesozoica revealing it to early before scamming us all
Don’t be silly, that’s Montanaspinus
people laugh at montanaspinus but i fully beleive at least 1 genus of spinosaur made it NA
Oh yeah, and iirc it might not even be a dromeosaur or something like that
Eh, unless it’s some vagrant that crossed the ocean
(They did, there was a paper on it)
The reason we don’t see NA spinosaurs is cause NA was isolated for literally their entire evolution
Oh but the paper never saw the light of day, it was rejected and the authors (iirc Naish was among them) gave up
Why was it rejected?
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..
Never told us, they just said it was rejected and they gave up
paxaneri sucks
They can reject papers?
That’s how it publishing studies works
It might never get past the peer review and public release phase
So, none of the analyses held up
the spinosaur is news to me but yeah, there's also a cedar mountain stegosaurid known from trackways
my worldview was just shaken, do we at least know what material they were basing it off?
I feel like all these giant taxon would’ve been discovered with substantial material in deposits like the Hell Creek
Teeth! :D
then again edmontosaurus isnt that common right?
oh joy, teeth
Impossible to know population spread from fossil records due to fossilization bias
Judging how common something is by the number of fossils we have isn't a good idea
at least compared to trike and rex we dont find as many fossils i mean
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
We have a butload of specimens, idk how it’s reflective of the in life populations but it’s a very common thing to find
Not a good way to judge if it was common or not
If we judged that way, Rex would be the most populous animal in HC
i didnt mean population i mean as a fossil it isnt as common as thew other big ones
Erm Triceratops has left the chat
I think rex has more specimens than Trike
Rex W.
then you have Anky and Denversaurus which..just..you hardly ever find
Let's estimate sizes based on scale size
big animals don't always fossilize well at all, look at sauropods they're huge but the fossilize terribly because of it
Then what the heck is that graph based on?
Speaking of rare fossils, how the hell do we have a megalodon vertebrae?????? Shouldn't that be impossible?????
isnt it suggested that the ankylosaurs lived in a different part of hell creek which probably had less chance of fossilizing?
I don't mean to drill you for information here but do we know where they're from and what approximate time?
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
i mean dont we have some decent shark material before this
Oh I misremembered, I thought rex had the mega slice
The Erlhaz formation is super underrated, its super unique and it has some of the coolest prehistoric animals in general
Nope, just that there were possible NA spinosaurid toofs that were never published
Silly goose, I’m the smart one 👹
Cenomanian Spinosaur from NA?
i doubt spinosaurs wouldve lasted very long in NA considering all the other things here
From the Cenomanian? I can hardly think of any
cenomanian...uhh
I think some Cedar Mountain layers might be dated back then
Guys, I got nothing to do, I think Im going to attempt to clone dinosaurs
make sure you feed bad people to them to fix our problems
Ok, understood
I got chickens so, I'm closer then most people are
But what I don't have is a rooster for fertilization, which I might be able to fix with new chickens
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.
I could also mix it with any known reptitlian, and I'd keep trying till I could find a match
one problem, we can’t get dinosaur dna yet
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
Don't worry guys, I'll find some way to make a dinosaur
pretty sure we only know one t.rexes gender conclusivly too.. B-Rex
We Already have dinosaurs today
I meant non avian dinosaurs
Whatever happened to that T. rex soft tissue?
Government probs hid it, if its soft tissue we shouldn't get clones but we should be able to use something with it
But if I can't get dna, I have to find out what I can get
wait
I'm going to actually try that, grinding up bone to see if I can get anything out of it
Im getting my chicken rex if its the last thing I do
The "soft tissue" that was found isn't actually soft tissue, it would have 0 viable DNA
snd dont grind up fossils if you value any form of respect in paleo
Shoot, what an actual shame
No DNA would be viable from that long ago, DNA doesn't last super long
Guys Im not grinding up dino bones, Ill find some reptile or something
...and or parasites/parasitical infections
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
Bruh what, they deleted it 😔 this is so sad guys
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Heed my words paleo chat, I will turn Avian dinosaurs back to Non Avian someway somehow, believe it
This is SO sad guys 😔
But afaik, you'd need genetic engineering to get chickens with tails and teeth
For once, good moderation
Someone tried that, Guess what? They killed the thing, Because "we can't play god"
Oh idk the circumstances of dinosaur genetics, but the embryos tend to not be viable afaik
probably cause those genes turned off for a reason
No such thing as cloning non-avian dinosaurs, you can genetically modify Avalian anatomy, but that’s inhumane, probably
(The leading theory is it makes a faster incubation time/reduced flight load)
I would agree to it being inhumane
yes cause a chicken needs all the weight to fly
Humans being inhumane? I wonder where I haven't seen that
Lets not talk about how we genetically engineered chickens to become fatter only to be crushed by their own weight
Lets talk about literally anything else
How accurate is this taco 
100 percent accurate
I hate the head so much, it's so bad-looking and there's evidence for cheeks too (in ornithischians in general)
Wdym? Taco looks good
No? It is quality you're just jealous
i was gonna say theres like 16+ species to pull from and each one differs
I am crying (sobbing)
Word🗣️
i just know P. sibiricus is best species
But seriously though, this thing would act similar to modern day pigs
(Probably not, ceratopsians are pretty heavily herbivorous)
no this thing would be hateful and just terrible
I wouldn't say that for sure
I would say that for sure considering the isotopes say they do
ceratopsians, especially small ones definitely would assault you and take fingers with their big beaks
Tooth isotopes moment
Gross
In defense (especially the hornless basal forms), I could see biting being a large component in fighting, but I don't see them as omnivorous in the slightest
Grosser when you realise that the horns on the cheeks aren't horns but essentially fingernails and that this applies far beyond just Psittacosaurus
i mean as a rulle im pretty sure most herbivores suppliment
Darn, I swore I saw someone talk about herbivores needing meat from time to time
Nah that’s fine, this one just looks gross
This is based on Psittacosaurus sp. SMF R 4970 using the soft tissue that was preserved on the specimen, even down to scale type... what was preserved is what was reconstructed.
Most herbivores eat meat from time to time but it's far from a regular part of their diet
That doesn't make them "boar-like" or "omnivorous", when people say that, they're thinking of the deer eating a baby bird
It is however accurate to the specimen, Psittaco ugly little man, includes scale types not on the other reconstructions either since they were only shown in this paper
But...it's crushed flat, you can't get a good cheek reconstruction from it?
i do stand by small ones just being horrible devil creatures with Napoleon complexes
Plant fossils:
??? Plants aren't exactly the most 3D of things, so when they're crushed, not a lot of information is lost
Refuse to believe, I will live in blissful ignorance appreciating the earlier physical model
It's the eyes that makes the taco look kinda weird to me
Clearly you haven't seen a 4th dimensional plant before
True and real...
I wouldn't say that, there are a lot of plants out there with a robustness we wouldn't be able to find from fossils
then theres Udano...that...that shouldnt exist and its existence scares me
But most plant fossils are pollen and leaves, things that aren't exactly known for severe need to be uncrushed
The skull is crushed upside down so seeing the cheeks is effectively impossible even with how good the specimen is, there are sadly limits. We opted with the conservative approach as cheeks aren't required at this point in Ceratopsian evolution to actually consume food, later down the line? 100% yeah probably would need them.
Oh were they not chewing in Psittaco?
no thats scarier
Eyes are kinda crazy
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Slowly coming back to the goat
Probably not, Ceratopsians as a whole aren't really chewing much if at all to be fair, hence why cheekless recons of them and Pachycephalosaurs are more prevalent than Hadrosauroids
Hm
Could a triceratops bite a human in half
guys
at most probaly a arm'
unfortunately nature seldom cares for what is most aesthetically pleasing 😛 the focus was how much data we could incorporate into this reconstruction, which includes a lot of new analysis of scale types and pigmentation that hadn't been looked at before... it was enough for the authors of the paper to approve it at last
It appears you missed the theme of my message, blissful ignorance is a specific term
oh my bad, I get what you're saying now
me when I look at you through my seeing-dents
.....its like a ball python..adorably squishy lookin
Hope the mods don't see it as a joke
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
I used to like psittacosaurus back in the day, then my eyes were opened to how horrific it actually is
its still somewhat............ cute
it's the jugal horns being nails that did it for me
It's still cute if you adjust the eyes
the nose pad lookin thing...possible evidence as beginning of horn evolution or possible head butting/shoving
Real though, what happened to its big patagia
Guys Idk what your talking about, Taco is a very cute animal (trust):0
Still there but pigment analysis shows it's more countershaded and less obvious.
on a related note im sure it could bite you're finger off though
So I’m optically tricking myself with the colouration of it
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
mild eye blocking
Binocular Vison moment?
they're still there, just less extensive than some people portray them (but this is the extent on the actual specimen)
Could this be degradation though on the specimen itself?
That fern looks, really modern. Crazy how much it didn't evolve
does..P.sibiricus have the biggest juguals..i think it does...thats the only reason its my favorite
I believe so, this also means it's got the longest face-finger-nails which is wonderful, we love our putrid little men
Wait, isn't there a specimen that's "yk" is preserved?
cloaca?
Yes
Yeah that
Yup that's this specimen, you can see in the image Okeanos posted the pads this individual has
i vividly remember that day
I might get banned for this but, do we know how big it was?
my therapists were questioning me why i interrrupted the session for this
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
Were they as large as other animals that have them? Such as birds
I would assume that they were no larger then golf balls
i mean my leopard gecko has the bumbs but their..small so probably not that large
Man paleo chat just got a little wild
why? itsa science
Ahh your right
If we were simply willing to ask any questions and do any expirment, we would have answers much quicker
Happy to fill in any questions on the recon in general for thoes that have them
On a unrelated note, I've been arguing with some who thinks Giga beats Rex 60 percent of the time
the thing spanned more then 80 comments 💀
is this just a model you guys made or is in on like a roster just curious
It's a model they made for the paper AFAIK
ahh ok just curious
Yeah we were approached by the authors to create a reconstruction for the press release for the two papers
Nice
Yup it's for the paper, the individual itself is a juvenile so it'd be inappropriate for a mod either way
fair..would the species..be one of the bigger ones..
Anyone know where it was found?
AvA is really dumb imo, unless it's stuff that actually happened like sucho VS sarco or trike VS rex
i think it was...bought or something, i dont think we know locality or formation
It's either P.lujiatunensis or P.houi, both of which don't get much bigger than around 2-2.5m so on the smaller side
Sarco wins 80 in a confrontation that's not about killing
End the 80 comment discussion with, 95mya vs. 66mya
Can't, I'm to much of a keyboard warrior for that
Never going to let my favorite theropod lose to another, got to keep that awsomebro energy up 🗣️
Ew awesomebro
.....now...whyd you gotta admit that
I'm just joking, I love my theropods fat and bulky with lips
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
Test: does the rex in prehistoric planet have a realistic amount of soft tissue
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
too this i respond people with actual PHDs and study tyrannosaurs like it so i like it
No one knows
Devil is in the details really, overall the original reconstruction is fine but it's missing most of the scale variation, the umbilicus and the jugal nails. Not its fault at all just science marching onwards and new methods of looking finding new things. I'm sure our recon will be outdated in a similar manner next time Christophe and co take a look at the specimen.
Nicholls has keratinisation on the Jugal horns I think
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
I see
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
no
But it doesn't bother me, Rex is better fatter then Jp-er
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
Jesus I keep forgetting how big megatheropods are, just saw a diagram of them compared to elephants
Hello? Anyone in paleo chat? No?
I’m here
, to say, the Tyrannosaurus is perfectly plausible in most respects, with some very minor anatomical problems to the model itself
Uhhhhh, giganotosaurus skeletal
Uhhhhhhh, wouldn't want to be a 10-ton sauropod, am I right?
around there
Giga could probably hunt sauropods larger than 10 tonnes and it did live with a decently large sauropod
That was the joke, that giganotosaurus could hunt 10-ton sauropods
there was Andesaurus and another giant
Oh definitely
Me, I was the other giant
Giga is my third favorite dinosaur, my favorite is acro and my second is rex
Rex is my first, Spinosaurus 2nd, Giga -1, cause Its a mood
Just thinking about Giganotosaurus and how it evolved to strip meat off bones will never not be cool
Rex is meh, advance theropod yes, but only real paleo nerds know the og design
Some cool rex Paleo art I found
Giganotosaurus Paleo art
god you're getting all the good art, I can't even find one😔
please make sure to credit images if you are posting paleo art
Lol
?? 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.
Crediting is crazy
Didn't we post paleo art without crediting?
I posted the franoys model without crediting that guy
Ragh
There are lots of inconsistencies when it comes to how rules are enforced tbh
From now on we should cite every statement we ever make on anything including a link to a pdf or at least doi
lmao
https://obscuredinosaurfacts.com/profile/2022/06/08/tarbo.html art with link, to keep those pesky mods away
We should also state where the specimen came from and when it was found 🤓
Theyve only started enforcing the credit the artist rule recently, idk why, but they did.
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
Same
Thanos
Same
Overscaled axis time
I hate the thanos dinosaur, it pisses me off so much 😠
Its honestly easy to ignore
I also hate oxalaia, it's just spinosaurus but fragmentary
God this rex is ugly, not so good for paleo art tbh
The name isn’t
Kurupi itaata
???????????
It’s essentially in translation, the rock-hard god of sex
: (
Eotrike when it's smaller than regular trike:
sitting here just enjoying all names cause they have reason
Best name Fr fr
How dare you make eotrike weak?!?!?!?111 it's stronger then all ceratopsians- Eo trike main
eotrike is literally just trike prototype before the puckerfactor
dont know what 90%of these emojis mean and dont care cause my opinions are mine..
At least eotrike’s still similar to alberto size
hot topic: Sauropod Carcasses could provide home for small theropods
Doubt a home considering the amount of predators (larger ones) it'd attract
...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..
Is it?
Albertosaurus not albertaceratops
Wdym
I can say Rex is the strongest theropod and no one will disagree, get annoyed? yes
Yes, that’s why you had me bamboozled
youll get people argueing over giga
Uh oh, a mod is typing
Uh oh
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Ruh roh, I didn't cite my sources 🙀
Me when my source is some journal from 1930s Central Asia that outright doesn’t exist online
What the mod said: We enforced rule, cry more kiddo
majority of soviet era paleo
The...the raptor
yes its THE raptor
Finally something worthwhile 🥱, more little maastrichtian guys
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
I bet it could eat someone
Also, have some fat butts
- Triceratops (8m, 7 tons)+
- Torosaurus (8m, 7 tons)
- Titanoceratops (7m, 6.5 tons)
4+5. Eotriceratops & Sinoceratops (7m, 5 tons) - Pachyrhinosaurus (7m, 4.5 tons)
- Pentaceratops (6m, 2.5 tons)
This is ignoring controversial taxa that we don't really know what's going on like ojoceratops and nedoceratops
Carcharodonotosaurus looks too big
Drumheller my beloved
It might be too tall, but I'm waiting for something else now
Torosaurus get how big now 
Aren't the largest trikes like 9-10 tonnes or something? Or am I just stupid
does anyone know what happened to...Triceratops maximus...my only reference to it are..this kids book i had when i was like 5
possibly 12 but its max
That’s the guy with the preserved verts in the size comp Fred sent a few minutes ago
That’s probably what the plus sign was for
I'm talking about largest specimens we have, not the hypothetical largest specimen ever that we don't have
Getting proper size estimates for triceratops is actually extremely difficult due to how much variety there seemed to be. The size there is from the one GDI that exists. It probably did get bigger than what I put there, hence it being bigger than toro despite the same given metrics.
this book..should probably say credit is to Luis V rey..
probs 9-10 then
tyrannosaurus missed out on having giant claws
It didn't need em
rex is the king of jaws while maip is the queen of claws..
It says it, but it's so fricking pixelated
Spinosaurus in the corner:
mmm but spino isnt a Coelurosaur
Spino arms aren't known, but the one metacarpal we have shows that Spino's hands are slim af
Oh my bad, I thought we were just talking about theropods
its just fitting the "queen" to rexes "king" would be a related family like all classic monarchies
Is also like 1/3rd of the size which slightly complicates the whole queen thing
Big hands and Big jaws
Megaraptors and Tyrannosaurus are a Duo many don't know exist
Not really, women are almost always tiny 😔 so smol (speaking from experience)
listen until we get a official named queen i vote a Megaraptoran as the queen simply to have muscles to oppose rexes jaws..
yeah there's a bit of a trend in carnivorous megatheropods re: the tiny arms, bit hard to find huge ones that still have beefy arms
You've seen a real woman?!?!?11 🙀
Guys it was a satire joke
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.
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cough abelisaurus cough
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?
it probably is, though many think otherwise
i'd say it's unlikely given the sheer number of tyrannosaurus specimens we've got
The one decent giga specimen is 9 tons. Getting 10+ tons is almost a certainty just looking at how animal averages go.
That aren't close to being fully grown
Is the green carchar based on a new skeletal or is it just dan’s
not taking into account if the 10 tonners arent examples of gigantism
We got like around 35 iirc and 3 of them are around 10 tonnes
We haven't found MASSIVE specimens of these kinds of animals, we've just been getting really lucky and unlucky for deciding mass
how are you defining fully grown, and where are you getting the information that most of them aren't?
Random got 8.4 tonnes for the giga holotype iirc
The smallest "adult" tyrannosaurs are individuals like Stan, and they're still like 8 tons.
Unless they are 28, they still have much growing to do
Tyrannosaurus is fully mature around 16 iirc, 28 is just Sue's age and she's the second oldest
id say a rex is full grown by like 29 considering it dies in like 2 years at most
wait, 6 tons at 16 or 8??
Sexual or skeletal maturity
Defining the relationship
Skeletal maturity
uhh depending if they stop growing till death
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.
No, ate age 16
alr
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
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
IE most mature edmontosaurus individuals being 9 meters in length with only the largest and oldest reaching shantung sizes
Average annectans is at 5500kg
Stan being one of the smallest adult tyrannosaur? I swear stan was around average rex size unless am being mistaken
Sad edmontosaurus isn't anywhere as large as a shant
god imagine a shant living that long then
He's on the younger end in terms of mature tyrannosaurs
Wait, victoria isn't smaller than stan??????
I don't understand the meme fr
if the oldest Edmontosaurus can hit Shant sizes...how big would shant be at those ages....
we are talking about 20+ maybe
Is there any actual evidence that the giant edmontosaurus are abnormally old
I mean I'm just assuming
itd have to be old...
Skill issue
Hadrosaurs hit skeletal maturity pretty fast
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
Sounds high, I’m gonna say no
how many shant specimens are there?
reason i'm asking is because i'm formulating a crackpot theory that shant was actually small on average a la edmontosaurus annectens
Projected maximum size 🤢
to assume the average for shant is 16 or 18 tons then maybe
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.
They are bones, what are you going to do about it? 🤨
So just like, relatively developed adults would be the large specimens, not defined by advanced age in particular
also isnt it inferred that Shant took over the Sauropod niche
yeah it did
At least some hadrosaurs have pretty low mortality rates until they hit skeletal maturity but I’m not sure about edmonto
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.
I’d have to check I think it’s in that RMQ paper
barsboldia...is that one Nemegt...yea cause i recall it cameoed in the Oasis scene in PHP
Someone is getting a mod warning 🤓
Ye
Nuh uh
Yuh huh
wasnt Bar decently huge too...
Bars is like 6-7t I think
6.5 tons give or take
Guys I think the mods are asleep
so not Shant huge but definitely impressive..
Like a regula fella, the Mongolian Saurolophus I think is the Nemegt fatty
all it takes is one @
Not quite actually
Please keep this channel on topic, and avoid posting off-topic gifs.
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.
Oh?
mods are very angry
isnt Asian Saurolophus like twice the size then american
Giant saurophus is if you don’t use fadeno’s bobblehead
Basically. American saurolophus is basic hadrosaur size.
....so...like 4 tons?
Average hadrosaur is..like... 8-9 meters and 2.5-3 tons
I think the moral of the story is that Hadrosaurs were pretty big
Here's all hadrosaurs above 5 tons
Hadrosaurus are still fodder, trust
would Parasaurolophus fall under basic..
- Shantungosaurus (14m, 16 tons)
- Edmontosaurus (15m, 14 tons)
- Parasaurolophus (13m, 12 tons)
- Magnapaulia (12m, 10 tons)
- 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) - Saurolophus (10m, 5.5 tons)
- Tsintaosaurus (10m, 5 tons)
So how does S. angustirostris compare with good attributed material
wait wait.. when was Para bigger then "Big Paul"
Bad ending: Shant is actually just composed of multiple hadrosaurus 😦
Luckily that's not the case
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"
definitely not a rex fanboy

New topic, how do we feel about Sciurumimus and Scipionyx
adorably skrimpy...but beautiful preservervation
No… I mean… their phylogeny 😈
.......not carchs or whatever i can say that much
afaik Sciurumimus is rn just "coelurosaur" with not much else known
So, you’ve taken your side 
Scipionyx meanwhile is most likely a hatchling allosauroid
what did compsognathid change?
It’s possible the clade in its current state is problematic
Compsognathids in general most likely are not all juvenile carcharodontosaurs like the paper tried to suggest. Compsognathus, Ubijara, and Sinosauropteryx were all mature animals.
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
eh not really
not literally but its very full
Which paper are you referencing
PDF | Theropoda is the monophyletic group including all predatory dinosaurs and birds. The study of theropod dinosaurs from Italy is a recent field, not... | Find, read and cite all the research you need on ResearchGate
the stupid one that tryed arguing compsognathids were juveniles of other things
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.
Ah okay, same one
skippys the only one for me cause it died like probaly not even a few days after hatching so that one makes sense
The paper itself I think only sights a few examples of juvenile material which gets tossed into Compsognathidae.
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.
its like how PHP gave the baby raptors a basically universal body type cause they probabably hardly differed
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.
cut to Luis V Reys feathered allosaurus
yep, i strongly doubt all compsognathids are juveniles of other clades, but there's an argument to be made for a decent chunk of 'em being that
Again, compsognathus, sinosauropteryx, and ubijara all have specimens that were definitely adults. Others are much less clear tho.
Yeah, interesting though that the paper raised possible doubt about C. longiceps curious where that comes from
probably because they come from places with amazing preservation
look the paper was...Cau right..?
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.
Yeah it seemed like a loose thread, clearly not the main focus of the paper
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.
i think it was Cau but i can confidently say i only ever knew them for Sauroniops
They were one of the first to rigorously question quad spino if that means anything. They also described Halszkaraptor.
What a Chad
naish and cau made that eotyrannus monograph too
can i admit...i liked quad spino it looked cool..
Oh?
he helped describe that kem kem abelisaur too which had some content on general kem kem biota as well
He's a royal jerk actually but I digress. Either way he's still a respected paleontologist.
Lol, luckily I didn’t catch the first message, maybe some more colourful language
Yeah I got vibe checked by the censorship bot twice
also funny how in 2014 we got perhaps the biggest news with spinosaurus but also a Transformer spino
I’m inclined to like this paper specifically
Let’s spread the good word of protofeathers to all the Tetanurans 
speaking of which why was everyone giving siats feathers back in 2013
....feathers were big and siats was the new big theropod io guess?
cause i remember this was also when fluff rex was huge too
I think by then it was still tossed into Megaraptora
it was described as an allosauroid
i think it still flips between megaraptoran and neovenatorid
Oh yep, Megaraptora were considered Neovenatorids back then too 😭
I put it as a neovenatorid and not question it's placement or question neovenatorids as a group for my peace of mind.
anyways gualicho
i thought they were just a sub group within carcharadontosauria?
Gualicho is pretty firmly a noasaurid. It just has a history of bad phylogenetic studies that say otherwise cause they were bad.
I hear about him, spent 0 time with him. What’s his deal
neovenator itself is fine it's just everything else likes flying everywhere else
gualicho's a taxon
venator is definitly one of the best words in a name..
i got it..Neojeager
the good ending
gualicho/deltadromaeus - noasaurids
megaraptora - pantyrannosauria (if it stops killing itself)
siats/chilantaisaurus - megaraptora
bahariasaurus - nonexistant
no give me giant noasaur bahariasaurus
siats and chilantaisaurus tmk are probably whatever 'neovenatorids' are
i think both flop between neoventorids and megaraptorans
they do but neovenatorid seems to be the current accepted interpeation
(I wonder what this message said, oh well)
i just want a german theropod with jeager in the name..
noasaurids are ceratosaurians
Kenyan Giant Description
i don't have much of a stake in the siats/chilantai game i just think they're neat
i just like big theropods
Neovenator informed reconstructions do look pretty lovely
Yes yes, I read your comment wrongo, pretend it never happened
the internet never forgets
someone mentioned the..Turkana Grits Abelisaur...the paper is in production
in all seriousness though megaraptoran siats and chilantaisaurus would both be kinda weird in the context of megaraptoran distribution
why for chilantai? theres a couple asian ones
I’d rework the good ending and stuff both of them in as basal Carcharodontosaurs
not in the turonian
that we know of
Neovenatoridae just not existing and neovenator, siats, and chilantai being derived allosauroids just outside of carcharodontosauridae
never say never in paleontology unless proven otherwise
the good good ending where someone redefines pantyrannosauria
Do they even exhibit Neovenatorid traits? or could it be a similar situation with Megaraptora?
thats implying neovenatorid traits are decent enough to even qualify as a group
like the clade's entire existence is a "meh"
Things that kind of look like Neovenator idk 😭
is...it possible for there to be NA megaraptorans
I mean yeah. They've been around enough. All the definite megaraptorans have stuck to gondwana though, or very close to it.
These asians ones I think were mentioned, what are those
They're still southeast asian
very basal
Is it possible for Maastrichtian Carcharodontosaurids
Temporally where do they sit (the Megaraptorans)
Possible, but very unlikely
no carchs were a loss with the turonian turnover
just let me have gres a reptiles
Is it theorised where they could have POSSIBLY been?
megaraptorans are barremian-maastrichtian maybe berrisian/hauterivian if you include sibiricus
The seem to have kicked the bucket long before then
nowhere where the abelisaurs or rexes took over
Not even some little guys like Conc or Alti?
maaybe..but i highly doubt past the campainian
it's possible but potential allosauroid records post-turonian are just teeth and other fragments that keep getting reassigned to abelisaurids
Can’t seem to find any, they would’ve had to been endemic to some weird ecosystems I think
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.
Oh that one is super early
and fukuiraptor ig too in japan
isnt fukui shaky
Nah
no fukuivenators the one with shaky ties
Fukuiraptor and Puwiangvenator are megaraptorans, and the only definite ones that aren't megaraptorids.
isnt there another one in SEA
vayuraptor could be one but that's shaky
I tried to find it, cause I thought there was more than one as well, but it's the only one I could find.
werent they all from the same formation as Ichthyovenator and Siamotyrannus
Ye
Usually cladistic discussion here is about the convoluted nature of Titanosauria, glad to see Teturanae is equally crap
there's also a tooth in thailand from a different formation that could be megaraptoran
theres like 2 or 3 cladistically ok groups..everything else hurts
Teeth. Teeth everywhere
maybe sibiricus in russia but I don't know if mortimer got that comparing it with chilantaisaurus or an acutally established megaraptoran
Not ichthyovenator tho. The local spinosaur was 'siamosaurus' which isn't a thing.
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
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
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
then you had PNSO who made their Sinopliosaurus a freakin Icthyovenator type spinosaur like what..
Oh finally what I’ve been looking for, what’s this New Zealand Megaraptoran
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?
takakita grit
ohhh thats good
Don’t know the exact details, I think I. challengeri might fit the book for it
uhhh all of europes collections?
real
Just worldwide
Speaking of Siats and megaraptora
anything from Tendaguru and mongolia pre60s-70s
i hope people didn't take the good ending seriously
(besides noasaurids because they're cool)
isnt Siats just the holotype
😭
I mean with the exception of the neovenatridae thing the other 3 things you said are literally correct
pantyrannosauria's just funny as a group though
fair
some clear this up for me is it saying Siats is a tetanuran?
siats is a probable allosauroid
Siats . . . is Siats at this point. XD
Incredible stuff
...how..complete or good is the material..
pelvic/axial elements iirc
What herbivores lived with torvosaurus
whatever lived with allosaurus
Depends on the formation.
It's the morrison formation. A lot did.
in lourinha just replace stego with mirigaia
The big one
Oh yeah morrison has a lot of sauropods💀
ezcept Miragaia is in the morrison too lol
or alcovasaurus if you will
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
Stegosaurus, Diplodocus, Miragaia (most likely, based on Alcovasaurus), Apatosaurus, Camptosaurus, Dryosaurus, Brachiosaurus, and much more.
Real and true?
That also works. XD
There's allegedly undescribed cranial stuff from siats
hardly any known pterosaurs
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
Where
Well uh, describe it then
Aight bro tomorrow, okay?
so..you know how Saurophaganax is radioactive
there's that probable siats type thing from idaho too
Ya that’ll be good
so idaho is useful for something
(it's an isolated centrum)
The pterosaurs there, to my knowledge, were Rhamphorhynchoidea.
Wow, I’m in vote to change the clade name to this
so we know Acrocanthosaurus was all over america effectivley..,and it went extinct..before siats appeared right..
There -- got the clade name there.
what if..siats replaced acro in distribution
is from texas and wyoming
maybe has some teeth from maryland
yeah bro it's all across north america
Eh why not
i lump capitlasaurus as acro cause it makes sense
ik teeth and maryland just don't go well together
It’s early Turonian right?
case in point astrodon
ew
North American Carcharadontosaurids, now that is an interesting topic
there's also allosaurus medius from maryland which is a potential carch
atm literally only acro, in that regard it's a bit of an anomaly
uhh 94 mya so.. right at the end of cedar mount
siats is mussentuchit which is cenomanian at the earliest
Oh Cenomanian? Even better
yea so basically right after acro is gone
There's Carcharadontosaur material from the Lewisville formation that shares some features with Siats
i mean...they are the most..uniform looking animals..
wow guys now it's not just teeth it's teeth and a chevron
For simplicity and logic, it sounds like Siats replaces Acrocanthosaurus’ role. Now, what is it
if we try reaaly hard we might get a chest
carcharadontosauria is the objectively more based choice
(megaraptoran is kinda aesthetic though)
So Neovenatorid is a go?
nevenatorid might become just a way to describe a body plan instead of a family
Apparently, this is all the fossils we have on Siats so far:
Chad Siats outcompeting and replacing the virgin Acrocanthosaurus very real and true
I think that’s how I’m tossing it around, something something, Carcharodontosaurs that aren’t in clear defined clades
that's like how species work right guys
its less acro was outcompeted and..went extinct
Minus fellows like Concavenator n stuff
hey..concs cool
the chad ulughbegsaurus turning itself into a dromaeosaur
shaochilong again stands alone
Based
If you’re not giant or a Neovenator looking thing, no one cares about you 💯
neovenator dumbass phalange arrives
Hmm . . . Prey changes?
We know that predators can go extinct if their prey change enough to where the predators in question are no longer able to catch them and, as such, eventually die off.
Quite the opposite
L SIATS
Nuh uh
Big Macronarians disappear from North America for a bit? Correlation possibly
Yuh uh
Ight I’m sticking with it
Hmm . . . Ima take a look at the suggested time zones of the prey items for Acro to see if it's correct.
some mussentuchit stuff (that I could find skeletals for last month)
Is that a Nodosaur or a basal Ankylosaurian?
Ah, pretty big.
Plot twist: Siats turns out tyrannosauroid and Moros is just a juvi siats
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
As a Canon event inspector from the spider society, I can confirm
Plot twist: Gigantoraptor likes kfc
plot twist: mongolian tyrannosaurs got big because gigantoraptor kept eating them
Okay the Macronarians are still there, so I guess Acrocanthosaurus got tired and tapped out of existence
Interesting -- both Acrocanthosaurus, Astrodon, and Sauroposeidon seemed to have disappeared around 110 million years ago . . .
and then siats was killed by lythornax
Holding back the urge... 
And Astrodon and Sauroposeidon are the two known sauropods that lived with Acrocanthosaurus.
Though Tenontosaurus was still kicking around for 2 more million years.
astrodon is a very reasonable very valid taxon
Dew it
er wait, are these Macronarians actually associated with Siats, or am I still right
Huh . . . What Macronarians were with Siats?
Whatever Tables posted idk
abydosaurus
Also an undescribed titanosaur I heard
siats is at the tail end of cedar mountain right?
a few brachiosaurids were probably around or adjacent to it then too
yeah abdyosaurus is also mussentuchit
sonorasaurus is same general timeframe as well
So must’ve been the climate that killed Acrocanthosaurus
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
The question, though, would be what kind of climate change?
Nah it was mega rabies
Interesting . . .
Based on the information there . . . Siats could be a carcharodontosaurid that turned allosaurus-like in build, to compensate for the lack of sauropods.
do we really know much about siats' build though
That is yet to be answered.
What dinosaurs most likely skipped leg day
majungasaurus
Especially when there's a supposed cranial part of Siats.
Speculative anatomy, trust the process 💯
the lack of sauropods could also be partially due to preservation bias, considering how many brachiosaurids are around and how horribly they usually fossilize
True.
. . . 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.
Campanian Sauropods real?
not in all of north america but in some places probably
eastern north america could have anything going on tbh
pretty similar in length but siats usually ends up a good bit lighter because it gets reconsturcted from neovenator
Pfff No one cares about that part, back to Laramidia
Interesting.
of course what am I saying? silly me
Hmm . . .
Acro was the heavier set animal, siats specimen being subadult or not.
So what suggests the possibility of immaturity
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.
siats uses projected adult size
disgusting
Should've put a 13m speculative adult in the background
I firmly believe that any speculative adult size siats is more cringe than megaraptoran siats
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.
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.
anyways lambor's paying for my therapy now
Acro is just the best
Where’d you get the peloroplites from?
scaled the skull of a mount
I see . . . So what could've possibly destabilized the environment for Acrocanthosaurus?
me
Look at the aftermath, this… Siats thing is your fault smh
Well, at least it's safe to say that it's most likely not a megaraptoran like what most people think.
the sigma 7000kg adult siats killed the cringe fran
Never say never
hence why it's no longer in the comparison
It's true
there's a few things that could have happened but we don't really know, the smaller sauropods becoming less common might have happened (or the sauropods could have just up and left for somewhere else), there's an overturn in the smaller herbivores so that could have destabilized the environment from the ground up (granted that really wouldn't affect the larger sauropods)
So, Cenomanian Carch is right on track with the rest of the world, North America being cool and normal
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.
be a megaraptoran because L
enter north america in the cenomanian
die immediately after
mussentuchit's technically albian-cenomanian but I don't care
he used all his evolution points into becoming the size of a carch and had none left to actually be good at living
the real reason megaraptorans don't get bigger than 3t
Meanwhile, Camptosaurus here still figuring out ways on becoming bigger than previously thought.
Realized size isn't the right skill tree for megaraptoran build
Muttaburrasaurus from PK looking good.
"Was Siats a bad animal?"
Ooo
everything from pk looks good
Shoot I forgot this game existed, that looks fantastic
True
except the rex's mouth 
How can ye forget about PK's existence?!?! 
lol
that's their one bad thing I'll give you that
I know, it’s criminal
Acrocanthosaurus > siats
camptosaurus getting bigger was more of someone made a size comparison of a specimen we've known was big for 40 years
Still a funny thing to meme about. XD
2t campto's been a thing since the 80s
2000kg? I think it’s time to get on the cut smh
everyone simply chooses to forget about it, an understandable decision
i blame pot in part for everyone thinking it's tiny
although it was never prevelant in the first place tbf
Same.
#JusticeForCamptosaurus
Oh, the irony
poor campto
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
yeah it's exceptionally large for a campto
still campto's were pretty frequently hitting at least half a ton iirc
Think I may have found PK's concept art version of the Morrison Formation (well, at least of portion of it):
QUILLED ALLOSAURUS 
RIP PK Ornitholestes
why is nasicornis like amnh 680 size
speculative sexual dimorphism, now why is allosaurus dentisulcatus sized
Yeah it's a freak
that things not even DINO sized
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"
i think it's in minnesota or something
Ye ye that's where I am. So def same
but like actually why's 680 so small
Its trying its best ok
Hmm . . . Theory -- the large Camptosaurus is a male, with the smaller ones being females. (Or maybe even the opposite.)
AKA, sexual dimorphism.
Blub aren't you supposed to be dead?
Only in kto
could even be the other way around, considering how some birds do sexual dimorphism
oh you beat me to it lol
XD
The updated campto seems a lot better I will say, from both a look and a size perspective
the ceratosaurus is like very generous kenton vertebrae sized and 680's below average allo sized
or that tooth
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))
why do you explicitly make it amnh 680 and then gut the size
just say jimmadesni at that point
i do find it funny that they predicted 680 being Allosaurus sp. in like 2015
call it ceratosaurus sp. and pretend it's qg 65 because larramendi says it's ceratosaurus
problem solved
my favorite allosauroid tibia!
Feathers. Feathers everywhere
when'd it become an allosauroid?
granted the most recent reference to it I could find was 2012
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
zimbabwe
a couple papers ~2010 refer to it ceratosauria at least if I'm remembering correctly
The same concept artist (MoriceMonkey93) also made concept art for the sauropods of the Morrison Formation, Prince Creek Formation, Yutyrannus, and Baryonyx:
It's been so long since I saw a wisp tailed apatosaur
back when all their sauropods were megachunky
carrano and sampson suggest ceratosauria
it's a femur? thought it was a tibia
you thinking of tendagurensis?
possibly
zimbabwe ceratosauria is two ~990 femora
Just checked and larramendi doesn't even mention carrano and sampson 2012 when talking about the thing
Mmm look at that tasty Troodon
bravo larramendi
Troodon Moment
Will we ever find more material? 🤷♂️ will it get its own genus and escape Troodon? 🤷♂️
Troodon no longer exists -- it can no longer harm us. XD
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
he does undersize a lot of abelisaurs
and then there's his lametasaurus and dryptosauroides
Different measurement techniques, maybe?
shrimply pre-grillo
grillcourt my beloved
i don't understand how larramendi absolutely butchered the indian majungasaurines but majungasaurus itself is spot on in length
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)
and then there's this which i don't think I'll ever understand
I love fluffy Pachyrhino so much
Wasnt the post crania of Indosuchus re-assigned to Rahiolisaurus?
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
Lameta try not to have the worst taxon record challenge (impossible)
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)
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
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?
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
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
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)
Oh no
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?
It's like a reverse "Ring of Fire" dragon
Question
Probably wouldn't go after another same sized individual, but rather eat young individuals and probably scavenge dead Ceras
Do u guys think raptors like Utah raptor or Dakota raptor could mimic sounds like modern day birds?
Possible but there's not really any fossil evidence for it tho afaik
Real?
yeah i've heard and read a lot about cera but unfortunately its so difficult to find reliable information online so i don't know everything, it would definitely compete with larger carnivores though correct? i read somewhere that it could hunt allosaurus even though allo was larger
No
Afaik, they filled their own niche and probably avoided competing with the larger predators, like Allosaurus
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
Oh ok just thought I’d ask cuz it kinda makes sense
huh, well thanks for ur opinions on cera
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
as someone who is a falconer i would say no... the only carnivorous bird/raptor i would say could do something similar is a crow or raven, any corvid, those raptor's probably weren't as smart so its unlikely
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
Are synapsids basically highly derived reptiles that are mammal like or, there is not much connection besides being amniotes is there?
Doubt their syrinxs even allowed them to do so
the females are sigilmassasaurus 🙂
Obviously
yeah they wouldn't have been intelligent enough to know how to mimic anyways, corvids have the mental age of a 7 year old so they'd need to be pretty smart XD
Amniotes split into sauropsids (reptiles) and synapsids, so they are just separate amniote groups
That makes sense
So they are apart of reptiliomorpha but that doesnt make them full on reptiles cause those are sauropsids?
not familiar with reptiliomorpha, I'll check
@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 ^^
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
gotcha, I think reptiliomorphs was confusing me cause of its name having reptile in it.
Yh I sort of thought of crows and ravens and just mashed em together
so many clades 
phahah np ^^
Another question is could mosasaurs of been venomous? They r related to monitor lizards r they not?
Maybe, doubt their venom would have really been potent though due to their bites
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
Makes sense
Yeah they weren’t killing anything with it
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
The chance of surviving that is literally like 2%
How do komodos even deliver their venom?
Just gets in through the wounds made by the teeth, it's not injected like snakes
They ooze into their preys wounds almost
So it's just in the saliva or something
If they could inject it maybe it would be a lot more potent than it actually is
It serves its function for the komodo though
Venom seems to be minimal in varanoids in general
They’re most impactful in heleoderms but in that group it serves a defensive function
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
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
they probably had the brains to, but the vocal power? we don't know
esp seeing how wonky intelligence is
That’s real life, not a video game played by people
Are you sure we are real
I mean you’re the one saying that said accurate sized megalania wouldn’t work because of more realistic reasons
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