#paleontology

1 messages · Page 110 of 1

zinc solstice
#

Arandaspis is Way Better though

cloud badger
#

Perfect life form equal to spinophaurus

zinc solstice
cloud badger
zinc solstice
woeful falcon
#

You've just described the cenozoic moon2EZ

cloud badger
zinc solstice
cloud badger
zinc solstice
#

Clydagnathus would just Shoot red giant Suns at it or Would Just Delete the Multiverse then Rebuild the Multiverse While Making it that Sacabambaspis never Exists. But for real, Clydagnathus would just latch on like a lamprey and just rip off peices of flesh and slowly eat it alive

cloud badger
fluid inlet
#

I remember being a kid watching Jurassic park and thinking dilo wasn’t that big ( compared to us)

glad carbon
#

undersized instead of oversized is so rare

warped peak
#

Juvenile*

I don't know how that always ended up so lost, the idea of the JP Dilo just... not being grown

velvet burrow
#

Because it was never mentioned or implied

#

And yes there's the "big brothers" thing Nedry said but it's more likely he just meant "larger dinosaur" or "larger theropod" in a very layman, mocky or nervous way

topaz shell
#

Isn’t the dominion dilo bigger?

bright veldt
#

by a little bit I think but not much

warped peak
woeful falcon
bright veldt
#

Yeah it's not. Given Nedry didn't seem to know dilos were dangerous to begin with I doubt he'd know it was a juvenile or not either.

stiff osprey
#

The Telltale game also shows the small Dilos as being adults, despite the same game claiming that they reach 20 ft long

woeful falcon
#

Things that will never happen but I want: Jurassic Park remake(s) closer to the book's narrative with accurate depictions of the animals

Especially TLW

outer tusk
fluid inlet
outer tusk
#

^^^^^

woeful falcon
outer tusk
#

okbud, pal, fella, person

woeful falcon
#

Dilophosaurus > any sinosaurus this is objective sorry scamp

stiff osprey
#

triassicus clears sinensis AND wetherelii

outer tusk
#

just waiting dan to remake it though

woeful falcon
outer tusk
#

Monolopho mogs all of them!

stiff osprey
#

monolopho has a nice skull and then it has nothing else going for it

no wonder he was trapped in the foam dimension

outer tusk
#

btw random I was looking through your DA and I found your Arkansaurus again and was wondering to myself why does this theropod feel so odd looking

woeful falcon
#

The boy

outer tusk
#

I love theropods that acutally have full intact skulls

sullen cairn
#

tsintaosaurini out of context

daring grotto
#

i never knew that was a tribe

pliant cedar
#

(Sauro may also be the 3rd largest theropod to ever live if you base it off the very fragmentary leviathian specimen)

halcyon cobalt
#

woah generic dinosaur got to a leviabillion tons

white matrix
#

how accurate is this sinoceratops skeletal

outer tusk
#

You didn't post Anything

pliant cedar
zinc solstice
#

I just found this Depiction of Kaprosuchus and I don't believe that it is accurate one bit, but Is it Actually Accurate?

outer tusk
tough parcel
#

Not in the slightest, that was made as a joke

fluid inlet
#

Rip to both

outer tusk
#

But may SOME chance kaprosuchus had to be lipped, it would definitely not look like that ( plz remove this slow mode )

fluid inlet
tough parcel
#

It was made as a joke/April Fool's

zinc solstice
#

Are there any known Mesozoic mammals with venomous Spurs?

stray wren
#

Probably, that stuff doesn't fossilize all that well though

white matrix
#

how accurate is this sinoceratops skeletal

tough parcel
scenic flame
white matrix
scenic flame
stray wren
#

Yeah that one's pretty much the best one

wraith kindle
steep sundial
zinc solstice
#

I thought it sent Twice so I deleted it but It Accidentally deleted both of the messages so Il send it again,

Today I just learned Ornithocheiromorphs Closest relatives are Pteranodontians

flat pond
#

Well I can safely say that PK is certainly cooking

zinc solstice
#

Did Some Ankylosaurs and Nodosaurs use Gastrolith Stones?

sullen cairn
pliant cedar
ancient knoll
outer tusk
#

I think so iicr Table also mention it's 6 tonnes

sullen cairn
woeful falcon
#

why on earth would that be accurate

river condor
flat pond
#

Another shot of Ankylosaurus

heady thunder
steep sundial
fluid inlet
#

What is Kenyan Giant? I never heard of it, at least I don’t think.

crude latch
#

gojicenter sergistare2

bright veldt
fluid inlet
#

Damn for a second I was thinking it might be the unnamed abelisaurid found in the bahariya formation from last year.

bright veldt
#

No

fluid inlet
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So apparently a near complete skull has been found of it, why hasn’t it been named?

sullen cairn
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why would the kenyan giant be from egypt

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iirc the skull elements aren't too complete but its been "supposed to be published soon" for the last few years

bright veldt
#

Keep in mind Allosaurus jimmadseni had about 20 years between being dug up and being properly published and given a name.

fluid inlet
#

20 years is a lot of time but I guess the good thing about that is maybe the size estimations hasn’t changed much since then or am I wrong ?

plucky basin
zinc solstice
#

I know, I don't believe Even one bit that the reconstruction image is accurate

bright veldt
woeful falcon
outer tusk
fluid inlet
white matrix
white matrix
white matrix
bright veldt
#

afaik no? There's a few well known allosaurus that were either A. fragilis or A. sp. that got put into A. jimmadseni when it was described (Like both Big Als). It's just that it was the holotype where this new species was actually noticed.

mild parcel
tall vale
bright veldt
#

How high do you think a rex ankle is? It's an ankle.

tall vale
#

And you severely underestimate how low ankys tail range of motion is

#

That is not hitting a ankle

woeful falcon
#

what about that couldn't hit an ankle if a Tyrannosaurus got close enough

mind you they don't have like, exceptionally long tails. rexes would need to get close anyway (which if its hunting an ankylosaurus, that's what it will do)

sharp canyon
tall vale
#

Or maybe rex just didn’t hunt it at all, but it still doesn’t mean that anky can hit its ankle

woeful falcon
#

I mean, an ankylosaur is going to defend itself. if a rex is going for the head, need only turn with it

tall vale
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Was anky even able to turn fast? Only things I know that can turn fast in hell creek are trike and rex

#

(Not counting smaller animals just the bigger ones ofc)

crude latch
#

pretty compact i’d imagine so

woeful falcon
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that I couldn't tell you. but the point is, an ankylosaur isn't not going to defend itself. The two spots I would think it could hit a rex is either the ankles which are close to the ground, or the head if it goes down for a bite

white matrix
native ravine
tall vale
sullen cairn
#

can't anky smash its tail on the ground for AoE attacks and negate the mobility problems regardless

tall vale
#

Truly

bright veldt
stiff osprey
#

Ankylosaurs don't turn extremely fast for a dinosaur to my knowledge, so it would be possible for a rex to outflank one and kill it by going for the head. But I feel like this is obvious from the fact that T.rex is a giant apex predator and would logically be able to hunt the herbivores in its environment

#

And it being possible doesn't mean T.rex would always succeed, so a rex would logically avoid attacking Anky if it was able to find easier prey

tall vale
#

Alright cool

bright veldt
#

The general go to for most tyrannosaurs seems to be hadrosaurs with "literally anything else will do" in the meantime.

sullen cairn
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except for the springtime when they have engorged musth sacs

halcyon cobalt
#

hadrosaurs learned karate in winter for fighting season in spring

fossil ingot
#

Euplo>Anky(Euplo is cooler)

sullen cairn
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if by euaplo you meant platypelta than yes

fossil ingot
stiff osprey
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unfortunately euoplocephalus exploded and is now like 8 different taxa

stiff osprey
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euoplocephalus itself is still valid mind you it just lost like 80% of the specimens that were assigned to it

fossil ingot
turbid forum
#

Best fish ever
He was a blessing from the lords
To turn the oceans into holy water

sullen cairn
#

average hadrosaur adult size plasticity

turbid forum
sullen cairn
#

maiasaura

pliant cedar
halcyon cobalt
#

I like to think it had humongous colonies. realistically it probably just fled

pliant cedar
#

the water is safe (a phytosaur is waiting)

white matrix
#

thoughts on this shantungosaurus

heady thunder
silver canopy
#

please tell me this is a mostly accurate reconstruction oh my god.

heady thunder
#

That looks so awesome

honest cobalt
frigid delta
mild parcel
warped peak
rapid vine
olive holly
#

So I see online it says that Heterodontosaurus was estimated to weigh between 5lbs and some larger specimen could have got around 22lbs. How accurate is that larger estimate of 22lbs?

warped peak
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Well considering the average cat is around 7 pounds and I know several people with cats exceeding 30 pounds, I don't think it's entirely unreasonable. Especially if there's sexual dimorphism in the species

olive holly
#

That makes pretty good sense to me 🙂 thank you

silver canopy
#

People may not like it but that's what peak fish looks like

fluid pond
hallow spear
sudden wind
hallow spear
sudden wind
#

Old, could need re-upload but I found this relic : https://youtu.be/mZ_bkMq1LNA?si=n32z4lSvnPPWePCz

http://thegeekgroup.org/ - This week: a dinosaur that's surprisingly accurate, but still manages to be very wrong in other ways. The armored dinosaur Euoplocephalus was a Cretaceous Period specimen that was indeed very much as the toy portrays, but Steve's gonna get nit-picky with it. For science!

Video Links:

5:33 http://onlinelibrary.wiley.c...

▶ Play video
tranquil quartz
#

What?!!

Where do Wikis get this stuff from LatenLOL

bright veldt
#

6 meters, 3 tonsish?

fossil ingot
#

Still a big boi I see

velvet burrow
sullen cairn
# fossil ingot How big is Euoplo

from what i can tell the current euoplo's seem to hang somewhere vaguely around 1.5-2t give or take
although platyepelta would indeed be 3t+ which is why its the best

zinc solstice
#

Wich species of Adocus was the Dinosaur park Formation one?

sullen cairn
#

half dozen+ hadrosaurs of identical frame were truly necessary to make the judithian interesting

stiff osprey
#

parasaurolophus
corythosaurus
corythosaurus but worse
corythosaurus with too much hair gel
corythosaurus with an axe stuck in its head
corythosaurus with erectile dysfunction

maiasaura

outer tusk
#

nah random it's parasaurolophus, para 2-6 and maisaura!

steady rock
#

i feel like a forgotten gem of paleo media is prehestoric park, how accurate were some of the more obscure species from it? like Incisivosaurus and Pulmonoscorpius?

topaz shell
#

EWWW THAT INCISIVO UGLY

steady rock
summer spoke
compact leaf
summer spoke
#

Oh damnn

#

When did that happen lol

bright veldt
turbid forum
bright veldt
#

Lambeo is not bigger than para.

sullen cairn
#

prehistoric kingdom and its consequences
although laramidian tsintosaurin would be sick as hell

white matrix
#

edmontosaurus mummy says hello

storm heron
bright veldt
#

Yeah that threw me off lol

storm heron
storm heron
olive matrix
cunning basin
#

How I sleep.

keen mauve
#

dous anyone here know anything about kryptops and rugops?

sullen cairn
#

kryptops is a really sad animal

crude latch
#

cheer him up at least pensivestego

keen mauve
#

i did kinda know that tbh

steady rock
#

rugops lived to the end of the dinosaur edge along side isisaurus

nevermind thats rajasaurus.

cunning basin
#

That is an unfortunate name.

steady rock
#

which one

cunning basin
#

The second one.

#

am i going to be banished without even playing the game

steady rock
cunning basin
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Sure.

steady rock
#

sauropods have it the worse because their name origins are really cool and then you have people who always wanna say it sounds like a much much worse thing

cunning basin
#

Oh, for sure.

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And then there's Brachytrachelopan.

steady rock
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whats wrong with that?

cunning basin
#

Never in my life have I struggled to pronounce something as much as Brachytrachelopan.

steady rock
#

hm, try
brachy-tr-ach-elo-pan

halcyon cobalt
#

ack I think instead of ach ( for pronunciation )

cunning basin
#

Brackeetrackellopan.

steady rock
#

its so dumb looking

crude latch
#

you think that’s hard to say?

steady rock
#

i think you just placed a curse on me

#

why do they give the longest names to the smallest creaturres

crude latch
#

had to do some searching here to find the actual name

cunning basin
steady rock
#

my favorite dinosaur name is BEG

crude latch
cunning basin
#

BEG? BEG FOR WHAT?

steady rock
#

mercy at its hands

#

do we know what niche leptoceratops would've filled?

cunning basin
#

Small, perhaps burrowing herbivore, methinks.

fluid inlet
#

By any chance does anyone have a size comparison between triceratops Horridus and Eotriceratops ?

frigid delta
tough parcel
#

Horridus and prorsus would’ve been the same size on average

fluid inlet
frigid delta
fluid inlet
# frigid delta yeah the only big thing Eotrike has is the head but the largest overall still go...

Yeah I know the biggest known specimen is from prosus , would love to see a size comp for this one. https://www.fossilrealm.com/blogs/news/willard-s-journey-the-tale-of-an-enormous-triceratops-skeleton

But damn I was not expecting it to be that small , eotricera

Fossil Realm

Willard - possibly the largest Triceratops prorsus skeleton ever found - spans 28 feet long and 11.8 feet high....

sly viper
#

Chat what is the largest hadrosaurid

zinc solstice
#

Shantungosaurus

sly viper
white matrix
#

the average annectans is about twice as small, there's been a lot more consistent sizes of shantungosaurus being around 14 meters
so outliers could've been way way bigger

tough parcel
#

Xrex is also still smaller than the larger Shant estimates

white matrix
tough parcel
#

What, how is that relevant

hybrid saddle
#

Eated it

white matrix
tough parcel
#

They asked for the largest hadrosaur and I was supporting your answer by saying even if we only used Xrex as an example, it would still be smaller than some Shant specimens

It being larger than the smaller Shant specimens is irrelevant rn

white matrix
#

??

#

sizes can hugely vary and shantungosaurus will probably be the biggest hadrosaur until something new is found
just look at polar bears for example
average weight is 800-1000 Lbs

#

the largest recorded polar bear was a little over a ton, that's more than 200% increase in size
18+ ton shantungosaurus could've definitely existed although people argue against with more recent skeletals

outer tusk
#

Could you say this dewlap looks feasible on animal like albertosaurus?

white matrix
#

their shoulder girdles were very efficient in bearing weight as well

white matrix
halcyon cobalt
#

whuh

white matrix
#

but it is soft tissue, look at regalis, we had no idea of it having a fleshy crest until it was found

outer tusk
#

Ok?

white matrix
# outer tusk Ok?

I'm yapping and didn't give you a good answer but the dewlap doesn't look out of the ordinary and it does add more character, I'd say it's good

tough parcel
heady thunder
#

That reminds me of TIs herrera

pliant cedar
storm heron
summer spoke
frigid delta
summer spoke
#

I would note we barely have anything particularly diagnostic remains (could be wrong tho)

steady rock
heady thunder
#

My cat did the same

wraith kindle
steady rock
#

you know what also has a spooky sound? a kiwi

snow python
#

Is the 5.15m Liliensternus really a subadult?

mild parcel
pliant cedar
sudden wind
pliant cedar
#

for now its just speculation

steady rock
#

i know this may be a dumb question, but would titanoboa spend as much time in water as crocodiles/alligators do or less?

tough parcel
#

I would assume more considering it was a large piscivorous snake

fluid inlet
#

Clickbait title lol but good quality video

kindred lagoon
#

Does anyone know where the troodontids having venom trope come from?

crude latch
#

jp

bright veldt
#

Yeah it's just a made up Jurassic Park thing.

warped peak
flat pond
#

Man this Coahuilasaurus by ddinodan goes hard

bright veldt
bright veldt
stiff osprey
#

Yay, carnivoraforum has made it onto a published paper!

bright veldt
#

If you're wondering why papers generally avoid estimating/discussing body size, or sometimes display outdated larger estimations. This is why.

#

Probably the most notorious recent case is Perucetus (which the paper covers) considering that the animal was, more likely than not, exaggerated in its size specifically to get media attention.

stiff osprey
#

lmao the pliosaurs and Glyptaspis

native kindle
#

is that the jw plane quetz in a scientific paperWOAH_MAMA

stiff osprey
#

No it's the initial published estimate of Quetzalcoatlus as having a 15-21m wingspan

native kindle
#

2 meters off, close enough😭 but sweet christ that's huge

zealous ravine
flat pond
hallow spear
sudden wind
pearl perch
#

Thoughts on a similar design for a new official map based off of Jurassic Pangea that would include the aquatics more?

deft pecan
bright veldt
#

That one's a bit iffy ye

sly viper
#

But not as large as the one in the picture

white matrix
#

size comparison between zhuchengtyrannus and the smallest mature adult rex?

tulip gyro
#

but is reliable in the vids

pliant cedar
#

yall think that dinosaurs could do well in the early holocene (just take humans out of the picture)

vapid lotus
zealous ravine
#

New ceratopsian just dropped

magic monolith
#

Fr?

zealous ravine
#

From Japan

tough parcel
#

Sussyamongus sussyguy

onyx sedge
zealous ravine
#

The name is actually pronounced sasayama-gnomus, not sayasaya-magnomus funny enough, as it’s named after gnomes

hallow spear
zealous ravine
#

It’s the gnome from the Sasayama Basin

#

It’s from the same formation as the new troodontid Hypnovenator apparently!

warped peak
#

Sassy Gnome vs Sleep Predator

lavish frigate
#

Is there by chance a paper debunking that weird “‫Sinosauropteryx‬ feathers are just collagen fibers” thing? It’d come in handy if one could be bestowed upon me

broken shale
blazing flax
#

ty!

plucky basin
#

opinion?

blazing flax
bright veldt
#

Yeah no idk y people would suggest that

blazing flax
#

probably a misunderstanding of 'highest bite force' without the context of general pterosaur trends

worthy dust
worthy dust
zealous ravine
warped peak
#

Do we have any fossil evidence of Pharygeal Jaws?

steady rock
#

whats everyone opinon on this lad

frigid delta
outer tusk
frigid delta
outer tusk
topaz shell
wind prairie
#

so are all fossil species really drastically oversized?

sullen cairn
compact leaf
#

obviously this means there’s a giant hell creek saurolophin

sullen cairn
#

of course

compact leaf
#

and the secret hell creek lambeosaurine got bigger than both

sullen cairn
#

if we go by the internet parasaurolophus scaling of 250% larger than anything the measurements actually suggest the hell creek parasaurolophus humerus would be up to ~15t

warped peak
#

What actually is the largest Para size currently accepted out of curiosity?

bright veldt
#

8.5 tons w/ Tubicens?

warped peak
#

What actually is the story with 12 ton Para? I know it's not a real thing but am curious

sullen cairn
#

~6.2t here

compact leaf
#

what’s the biggest cyrto at this point?

sullen cairn
#

prolly the type

white matrix
sullen cairn
#

saurolophin as in saurolophini

compact leaf
white matrix
crude latch
sullen cairn
compact leaf
#

that’s what I thought, I lurked on this conversation in ornithischia the other day

warped peak
#

New extinct fish unlocked: Pegasus volans

#

(Awaiting a formal scientific rename still)

distant mauve
#

Werid little guy I assume it's tiny?

light osprey
#

Resident of the upland

compact leaf
#

focusing on mystery animals from known formations to cope with the pain of having no idea what’s going on in eastern NA
and south africa
and northern europe

worthy dust
open hare
paper timber
stiff osprey
#

It's real, but the title is clickbait. They are not footprints of the same individual dinosaur (as far as we know) but of the same species or a closely related one

woeful falcon
#

Yeah. As it says in the article, Africa and South America were connected at the time. So that's how you have that

zealous venture
tawdry shadow
#

@fleet creek
This is what the Hogwartsia pachy sub in-game is based on/referencing.

fleet creek
#

oooh interesting

deft pecan
wraith kindle
zealous ravine
#

And Stygimoloch spinifer is now considered a second species of Pachycephalosaurus, which previously only had P. wyomingensis

wraith kindle
vapid holly
#

petition to make Sarc the new Trex 😂 (yes I know it says deino but Sarc is larger anyways. Can't tell me they didn't hunt the same prey.)

sharp canyon
#

Me when the giant croc wasn't a picky eater

vapid holly
#

Or they're like the same size. Forgot how it went

sharp canyon
#

I really don't see why a whole study had to be done on this. It's a very safe assumption that Deino would take anything it can drag under

tulip dove
#

Sarco was around like 3.5-4 tons and Deino was somewhere around 8 to potentially over 13 tons if it still holds up

keen mauve
#

I do know that Deino was bigger than Sarco but not that big of a difference

vapid holly
warped peak
#

Yeah Deino eating a juvenile Appalachio isn't a big surprise

It is also worth noting that the 13 ton Deinosuchus is an extreme outlier among the species and not a standard by any means

bright veldt
#

Sarcosuchus has shrunk significantly over the years. It’s now about 10 meters long vs the 12 meters that Deinosuchus got to. At double the weight too.

deft pecan
outer tusk
#

I mean it's still massve

frigid delta
velvet burrow
#

Size comparisons using anime girls and JoJo's characters is my favorite genre

magic monolith
#

I WILL compare Dio to Mapusaurus and i will not be stopped

fluid inlet
# outer tusk

Sarcosuchus Will always be the most iconic Crocodyliform I don’t care how much bigger Deinosuchus is and Purussaurus.

white matrix
#

people always look at sizes of prehistoric animals but can you just imagine how hot their internal temperatures were, especially their hearts

worthy dust
fossil ingot
fossil ingot
frigid delta
fossil ingot
#

Yuh
I saved it when yoi answer me back then

scenic flame
blazing flax
#

how long they were is less relevant; Sarco has a noticably different jaw shape (narrow) than Deino (wide) which has significant implications on their diet

storm heron
turbid forum
blazing flax
#

ye, though don't get me wrong its skull is still far more robust than a gharial's
if you see them irl they're like... it's proportionally thin but it's still a pretty broad??? beefy skull all things considered but yeah it's def not gonna be hunting things in the same way as deino really it wouldn't be able to handle as much stress

turbid forum
blazing flax
#

prob pretty big, strong fish and whatever else it could catch! iirc there isn't much evidence of its diet outside of morphology but yeah it's not really fair to conflate it with deino, regardless of similar size they were doing different things - whichever one was larger doesn't change that skull difference

bright veldt
#

We do have a study on sarcosuchus’s diet actually. It was basically what you’d expect from a giant crocodile-esc animal. A generalist that targeted both terrestrial and aquatic prey. The Gharial is also firmly NOT a good analogue for Sarcosuchus. It might look kinda thin at certainly angles but it most certainly is not, especially compared to the rest of its thin-jawed fish-eating relatives.

storm heron
#

Also keep in mind, even Deinosuchus will eat fish.

bright veldt
#

The thing with crocodiles in terms of diet is that aside from when they’re very young, they don’t prey switch. They just add more to their menu. Crocodiles eat bugs and frogs as hatchlings, as juveniles they switch to fish and similar aquatic prey, and then when they get large enough they add terrestrial prey.

#

So adults will never turn down fish either

storm heron
#

State they don't switch, then state that they switch from bugs/frogs to fish

bright veldt
#

Note the “aside from when they’re very young”

storm heron
#

You know, Im curious, how this can be applied to predatory theropods as they grow.

bright veldt
#

We know theropods didn’t really do that. There was a more clear division in the ages generally, at least in the macropredatory clades like tyrannosaurs and raptors.

storm heron
#

Was there really a more clear division in life? If I can explain it better, for example, what is stopping an adult Tyrannosaurus from hunting an Ornithomimid/baby Edmontosaurus (assuming juveniles primarily hunted these)?

stiff osprey
#

Well in the case of the ornithomimid, what is stopping it is several dozen kilometers per hour

warped peak
#

Barely an inconvenience

bright veldt
#

We have evidence for juvenile tyrannosaurs taking prey like Ornithomimids and oviraptorosaurs, smaller and flightier prey species. Sure an adult wouldn’t hesitate taking one if given the chance but the odds are unlikely. They’re going after the larger and slower prey like hadrosaurs and ceratopsians.

storm heron
#

True, smaller and speedier animals would be hard for an adult Tyrannosaurus to hunt (and not worth the energy). Though, I would still imagine there would be some overlap between diets (Wasn't there a Tarbosaurus study that indicated this or am I misremembering).

bright veldt
#

Nah it was a similar deal. Juveniles were after Ornithomimids. Adults hunted hadrosaurs and sauropods.

storm heron
#

In which case, what is stopping juveniles from hunting lets say juvenile hadrosaurs and sauropods, prey items that would be accessible to adults as well.

tough parcel
bright veldt
#

I mean it’s not a hard rule, Ofcourse it’s possible. But it could just be a matter of competition, anti-predatory measures from the adult large herbivores, and maybe even them simply not having the muscle. Keep in mind tyrannosaurus got its bulk pretty late. A Jane-sized tyrannosaurus was like 1/8 the weight of an adult.

stiff osprey
#

it's possible juvenile tyrannosaurs would be partially excluded from hunting juvenile ceratopsids/hadrosaurs because those were protected by the adults. But yeah they would definitely eat those, as would the adult tyrannosaurs

bright veldt
#

What I’m talking about is a trend not a rule yeah

tall prawn
storm heron
#

Oh yea for sure, a trend. I was just wondering whether this dietary segregation was less clear cut in life than on paper (with there being some overlap with the many prey items in their environment), but yea, adults would face difficulties hunting smaller prey and vice versa for juveniles.

fossil ingot
velvet burrow
bright veldt
#

A lot considering you gotta get really close to someone several times faster than you, combined with being the size of an elephant.

pliant cedar
zealous ravine
#

New Spanish titanosaur

bright veldt
compact leaf
#

an x-rex freak edmonto has a shot of getting out if it gets caught but your average edmonto is probably toast if the rex pulls off an ambush

light osprey
#

Aw everyone else beat me to it pensivestego

pliant cedar
tall prawn
pliant cedar
jagged trellis
#

it could kick lmao, a full off the ground donkey kick? probably not but they could kick like any legged animal

pliant cedar
fossil ingot
tall prawn
#

Look at the Edmonto do you think it has the build to kick ofc not and there not even at the range of the Rex

pliant cedar
#

any animal with 4 legs can kick bruh, the only ones that dont have the build to kick are paralyzed from the neck down 😭, but yeah, edmonto would lose, im just saying that if things went badly for the rex it could still leave a nasty injury

fossil ingot
fossil ingot
#

Average tho....yeah guy is cooked lol
Only that Big Edmonto could be the outlier to the average case cause mf decided to be Shant size lol

pliant cedar
#

15 ton ed giving sub adult rexes the zhucheng treatment

fossil ingot
#

Like why did mf decided to be Shant size compared to the rest lol

jagged trellis
#

he got the mcdonalds forever free pass or smth

pliant cedar
#

bro got that mcstrichtian diet

fossil ingot
#

Mf is huge

tall prawn
fossil ingot
#

Then again.
Rex on average been larger than its prey is kinda normal

pliant cedar
#

yall ever think every once in a while an ed herd gets tired of the rexes and just jumps one trying to hunt

fossil ingot
pliant cedar
jagged trellis
#

probably, anything can happen, remember a dragonfly that'd follow me and my family around for its entire life as a adult, better question is how often

pliant cedar
jagged trellis
pliant cedar
# fossil ingot Its possible

but at the same time trike and anky could both oneshot even a large rex so hunting at night would make sense for them too. i am also curious as to what made anky so rare in hell creek. have any papers been published on its histology?

hallow spear
vapid holly
#

What's not true?

fossil ingot
bright veldt
#

It could kick behind itself like you can kick behind yourself basically

sudden wind
# jagged trellis it could kick lmao, a full off the ground donkey kick? probably not but they cou...

It'd be sorta like an elephant kick which is irrelevant to something as huge as Tyrannosaurus.
https://youtu.be/YqX3AN_JShQ?si=9DdSHM48B-Wk67TA

Just, run.

Next time you want to get tickets on StubHub for the elephant parade, try not to get a spot right next to the elephants hind leg- we hear things get a bit rough back there.

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pliant cedar
jagged trellis
tall vale
pliant cedar
tall vale
#

Even then it’s probably still killable

sudden wind
# pliant cedar i feel like eds would get hunted more at night, while trike and anky were hunted...

Well idk about that given that Edmontosaurus regalis had quite of a good vision (and also hearing thanks to endocranium studies) overall, and so probably does E.annectens. Though the former species lived in polar latitudes where months of darkness were possible.

Proposing schedules is almost impossible to actually propose given the lack of correlation with only the skeleton. You'd need an eyeball to actually look at that, know how much light it could absorb etc. Though hearing could probably help as well given that several nocturnal species have good hearing but I'd like to exclude owls and bats given how specialized these are : they legit are night hackers with 1. echolocation for bats 2. silent flight and 3D hearing due to non symmetric earholes. Would be better to look at other nocturnal animals that aren't THAT specialized given the lack of probability giant dinosaurs had evolved similar things.

warped peak
#

Killable definitely

Reasonable to hunt is a different topic

bright veldt
#

The thing with anky is that the tail isn’t flexible. The most it’s going to do is break a leg, which is fatal but things like hitting the head are fantasy scenarios. The thing with trike is that we know enough about the ecology recorded in the fossil record, and through direct evidence, to know that they likely hunted trikes enough to where they didn’t have a solid chance of dying every time they tried it. The 50-50 vs is likely exaggerating. Same goes for ankylosaurs too given we have direct evidence of it happening, even if not with anky vs rex specifically.

tall vale
sudden wind
#

"I am you"

"You are me"

warped peak
#

We're not going into Bloodlusted Rex as a topic for power scaling are we

jagged trellis
#

"Powerscaling"

light osprey
#

Bloodlust Rex vs Edmusthosaurus

tall vale
#

Mmmm you can, but I don’t think a slightly hungry rex would hunt one unless it’s starving

pliant cedar
warped peak
#

Animals do tend to have good survival Instincts, and Carnivores without sense of their own place in the food chain tend to have very high mortality rates

tall vale
pliant cedar
#

yeah, a rex would probably 50/50 with an adult trike if it were stupid and tried to fight head on, but that never happens, and if it did only to curious younger rex individuals

hallow spear
#

X rex the lovely 13t~ edmonmt

tall vale
#

Ah x-rex, the fat animal

fossil ingot
pliant cedar
#

the king of ducks

fossil ingot
#

Btw does sm know S. Ungultus size?
I only have this as reference for its size but no weight.

bright veldt
#

Stegosaurus outside of S. stenops are in this weird purgatory tmk

fossil ingot
pliant cedar
bright veldt
#

The biggest stego’s 8 meters and 8 tons.

compact leaf
outer tusk
#

What about 10 tonnes

pliant cedar
compact leaf
#

our current stego recons need some work, it’s horribly figured and the few decent specimens that would make articulation are also horribly figured or immature (ask stego about it you can probably make him cry)

pliant cedar
#

WHAT HAPPENED TO APEX

#

WHERE IS THE APEX STEGO SPECIMEN, DID IT GET AUCTIONED OFF OR DID A MUSEUM GET IT

tall vale
#

I have it

tough parcel
#

Auctioned off, but from what I've heard, Apex wasn't ground-shattering compared to things like Stan or Big Al

Its size was blown out of the water to auction easier

tall vale
#

nvm 😭

tough parcel
#

😭 LMAO

bright veldt
#

I also heard apex found a home in a museum anyway, or it will

pliant cedar
#

also from what ive gathered tyrannosaurs didnt outcompete allosauroids, they just took over when the turonian killed them all, at least in north america

bright veldt
#

That’s how it generally goes.

pliant cedar
#

also do you guys know of any possible late cretaceous european tyrants, or did they end with Eotyrannus (Cause thats the last one ive heard of)

tough parcel
#

Probably hard to find them due to the fact Europe was underwater for a majority of the Mesozoic + humanization

compact leaf
#

europe is weird because by the late cretaceous it was very fragmented and incredibly isolated, there seems to be a few larger continents making up northern europe but we don’t know anything about them really

fossil ingot
#

Carchachad after seeing the climate change killed its food source: sobsucho

pliant cedar
#

siats was so cool, same formation as utahraptor, (but nowhere near temporally)

bright veldt
#

Cedar Mountain spanned the entire bloody Early Cretaceous and beyond

outer tusk
pliant cedar
#

cedar was a big boy

bright veldt
#

I had a friend that did a Cedar Mountain formation roster for a hypothetical realism server and did a hypothetical spit take when I saw Utah and siats coexisting, cause formation. Keep in mind. Utahraptor lived right after the Jurassic ended. Siats lived in the Late Cretaceous when spinosaurus was chilling in Africa. Acrocanthosaurus and Apatosaurus are more appropriate together than those two are.

outer tusk
#

💀 wild stuff ( althought a lot of people forget even one formation can have many layers to it's content )

compact leaf
#

it also has two turiasaurs randomly show up because why not

light osprey
#

Cloverly would make a cool video game roster

sudden wind
# pliant cedar 50/50 would never happen irl cause a predator would never hunt in a scenario it...

Thing is that we don't have really any ecosystem today where the predators literally dwarves almost all of their preys (minus in the oceans but we will not count them). Tyrannosaurus indeed did live in an environment 66 million years ago with several giant herbivores, with 2 in particular capable of severely wounding it, smaller than itself. Still, we see todays various predators tackling much larger preys than themselves which also are capable of straight up killing their predator (let's take a look at gaurs and tigers, cap buffaloes and lions, bison and bears, deer and bobcats). The vast majority of hunts ends up failed due to the preys spotting their predators and so moving on or escaping them.

We cannot totally say that it'd be the same in Maastrichtian Laramidia because both Triceratops and Ankylosaurus wouldn't be able to escape a Tyrannosaurus, so the scenarios aren't nearly as comparable to the this case of ecological interaction. Prey responses to predators can anyway be quite variable and differ between species, populations and individuals ; you still could try to make a generality as preys (even the ones slower than their predators) will try to first flee so they can avoid any injuries/infections. You don't have to imagine flight as a literal run like a gazelle or any cursorial animal : it can also very well be moving away so the predator looses tracks of you. Such interactions are to be considered as spectrums and not really much so of boxes depending of several factors.

Anyway, they have such weaponry that it'd be enough in a single good blow to get rid of their predators if landed correctly in a good spot (I see so much cases of even big cats or dogs literally flying away and yet continuing to harass their preys that I doubt single shots are autowins, and that goes the same for T.rex's bite).

outer tusk
#

there was a game that was made about that but it dead ( PLEASE I BEG ONCE MORE DELETE THIS SLOWMODE )

hallow spear
#

And apex will be in a museum at some point if i recall correctly it was auctioned off to someone who has a good track record me thinks

hallow spear
pliant cedar
#

were the 2010's right all along??

zealous ravine
#

Oh not this again

outer tusk
#

🦕 Qunkasaura: un nuevo dinosaurio saurópodo del Cretácico de #CLM

Un ejemplar procedente de Lo Hueco #Cuenca , que pertenece a un linaje de saurópodos hasta ahora no identificado en el yacimiento.

Conoce más en 👉https://cultura.castillalamancha.es/culturaenredclm/qunkasaura-un-nuevo-dinosaurio-sauropodo-del-cretacico-de-castilla-la-mancha

crude latch
zealous ravine
pliant cedar
#

indeed, i hope the spinosaurus saga ends man. i pray either all the specimens disintergrate so we never speak of it again, or we just find a mummy somehow (impossible) 😭

tall prawn
pliant cedar
#

yes, now all the spino glazers have resurrected from their slumber, and isle's spino is also oversized, its so over 😭

tall prawn
pliant cedar
#

make them a laten victim >:)

elfin pulsar
#

Was there spino news? I don’t keep up with paleontology stuff that much

bitter quest
#

Ye just carnivore and piscivore diet news

blazing flax
velvet burrow
outer tusk
#

Besides ignoring this thing being quadrupedal, is there anything like the musculature, that I should change?

worldly bluff
tough parcel
#

I think it looks fine is you consider it to be leaning more into a cartoonish style

outer tusk
#

does the head make it look cartoonish?

#

am trying to just aim for stylize realism if that make sense ( probably not )

tough parcel
#

Yes, the head feels more cartoonish which, combined with the odd proportions, reduces the realism aspect

topaz shell
zealous ravine
#

@storm heron this might actually be of interest to you, elaphrosaurs were known to have been born with teeth, but to have lost them and grown a beak as they age, which suggests they may have gone from carnivores to herbivores with maturity

fluid inlet
fluid inlet
#

Yeah I can just see a hungry spinosaurus intimidating most carnivores that are not an adult carcharodontosaurus off of carcasses if they were that desperate for food and an opportunity like that arose.

zealous ravine
#

No? No new spinosaurs were described recently, and none are mentioned by the video lmao

fossil ingot
outer tusk
#

It's not even larger btw

bright veldt
#

They're about the same size.

tough parcel
stiff osprey
#

If you use the Spinosaurus holotype unironically in versus discussions, I hope both sides of your pillow are too warm

tough parcel
#

But it's really funny to mislead people 💔

tough parcel
fossil ingot
plucky basin
fossil ingot
#

Carcha seems like 1cm taller lol

tough parcel
outer tusk
#

^

outer tusk
fluid inlet
# tough parcel Fine

To be alive just to witness this era in a tank to be safe just witnessing peak life.

tough parcel
#

What

zealous ravine
#

Yo Scan what’s that one shark with the weird crushing teeth

zealous ravine
#

Ty

#

Weird mf

warped peak
#

Can we take a moment to appreciate the sheer size of it

hallow spear
#

That’s me why are you fat shaming :(

warped peak
fluid inlet
bright veldt
#

Instinction is cringe and a scam

fluid inlet
#

How is it a scam?

wraith kindle
wraith kindle
turbid forum
wind prairie
daring grotto
#

that deinon’s skull is strange… almost looks velociraptorine? the only thing i can think is if they followed then smushed Gunnar’s deinon (who apparently follows and undescribed skull)?

zealous ravine
#

Fancy seeing you here!

steady rock
vapid holly
daring grotto
worthy dust
fluid inlet
#

it sucks because the models are amazing

zealous ravine
#

They did some really sketchy stuff, scan can explain better

crude latch
#

There smilodon yeshoneyeotrike

storm heron
blazing flax
frigid delta
daring grotto
#

A+ source Nigel_Smile

frigid delta
daring grotto
#

😨

honest cobalt
#

Is Tylosaurus bigger than Mosasaurus?struthiothink

daring grotto
#

i believe T. proriger is bigger than M. hoffmani (the classic ones), dunno bout the rest

bright veldt
#

It depends on what you go with. With the biggest decent specimens of both, mosa is larger. But there is a tylo quadrate (skull fragment) that suggests they could get bigger than mosa.

honest cobalt
honest cobalt
daring grotto
honest cobalt
daring grotto
#

absolutely, they’re really neat :]

pliant cedar
#

can anyone give me a good paper that argues for deccan trap volcanism not causing the kpg extinction, need it for a blog

#

i wonder if hatzeg was a multi insular animal, that ruled over a lot of europe

vapid holly
vapid holly
#

Damn ngl just checked it and that shi been dead for a minute you might be right. Thank God I ain preorder that John. Looked hella good im sad

rancid arch
vapid holly
#

Scratch that. As I was checking they did in fact drop more stuff 2 weeks ago. To much praise and not seeing anything about scams

bright veldt
rancid arch
bright veldt
#

It is too good to be true because all they have is pretty models with no sign of actual gameplay.

frigid delta
rancid arch
vapid holly
rancid arch
bright veldt
vapid holly
rancid arch
rancid arch
#

Either it gets scrapped, or it ends up like beasts of bermuda. Often forgotten

vapid holly
vapid holly
rancid arch
vapid holly
#

When did I ever say that? I was talking about instinction. As in the gameplay reveal was story not multiplayer. Multiplayer is going to be different than a story based narrative where you explore. Y'all forgetting it's an "Action Adventure" game and not call of duty or Ark?

cloud dagger
#

Paleo chat moment

unborn bane
#

Please keep all conversations in this channel on topic for discussion of past and present paleontological discoveries, scientific news, and depictions of prehistoric creatures in media in relation to palaeontology.

vapid holly
#

Oh damn mb. We jus gon have to agree to disagree and hope Ian getting scammed lmao.

pliant cedar
wraith kindle
lavish frigate
#

Rewatching camp Cretaceous and just realized the implications of stegosaurus shedding plates

That’d be like if we shed our arms when we grew

#

Literally shedding giant bones connected to their backs

outer tusk
#

it's Camp Cretaceous

lavish frigate
wraith kindle
hallow spear
#

(we do find that)

As for shedding, It probably did shed, but def not all at once & not the bone itself

lavish frigate
#

I would be genuinely repulsed if they shed their entire plate 💀

wraith kindle
hallow spear
#

they do not (Or i suppose, i cant exactly say for certain that they did not have this..)

wraith kindle
#

I'm sure we've found juvenile individuals by now, if not Stegosaurus itself, then others in it's group

outer tusk
#

I doub it would be like how deer do it but ig

crude latch
scenic flame
#

I feel if anything it's only shedding bits of keratin as its plates grow and change shape, nothing like deer

outer tusk
#

^

pliant cedar
#

its not a similar structure to deer so i dont think it would just fall off, they probably shed. i wonder if they trimmed the sails like we do with nails to keep them nice

wraith kindle
#

What would they rub them on though? Low hanging branches?

patent mist
# wraith kindle Um, deer? And shouldn't we be finding isolated stegosaur plates?

The differene with deer and stegosaurs is how thickly stegosaur plates are anchored and their use. Deer antlers are a handicap outside of breeding season so it makes sense for them to shed. They grow different to accommodate shedding they don't have a keratin sheath. I would assume actual horns are a better comparison to stego plates

bright veldt
#

Deer are an extremely unique case evolutionarily. There is no reason to suggest that anything else in nature had anything like it.

hallow spear
hallow spear
pliant cedar
#

idk man, deer are ungulates, and stegosaurus UNGULATUS, coincidence? i think not, i think they are direct relatives

fluid inlet
#

Spinosaurus fans we back

bright veldt
#

The most nothingburger paper I’ve seen. Spinosaurs having strong bite forces is nothing new. It’s just that they’ve always been weak compared to theropods of a similar size. Spinosaurus has a bite force similar to an American alligator. Carchar has a bite force that’s over double that but that’s still powerful af.

outer tusk
#

SURELY this one isn't biased!

bright veldt
#

This paper really just feels like insecurity about them being fish specialists, which they still were.

outer tusk
#

^ ( like obviously it's biased )

fluid inlet
#

Paper is paper paleontologist is paleontologist, we back.

pliant cedar
fluid inlet
#

I’m going to buy this paleontologist a beer, it’s on the house.

pliant cedar
outer tusk
tall prawn
sudden wind
#

Prey size and ecological separation in spinosaurid theropods based on heterodonty and rostrum shape https://anatomypubs.onlinelibrary.wiley.com/doi/full/10.1002/ar.25563

The problems with this study imo :

  • looks at absolute terms instead of relative because ofc a giant predator will have a strong bite
  • ignore Spinosaur skull weakness at handling high rotational stresses so preys heavily fighting back
  • doesn't precise that most Spinosaurs (mostly Spinosaurus) are composite of referred animals and other relatives, so if we find a full skull stuffs may change

Spinosaurs mostly stay as piscivore specialists given their morphological adaptations to such foraging strategies, but as any predators they could be opportunistic and so scavenged, ate other aquatic prey items (turtles, crocodylians etc) and terrestrial preys they could snatch/process. Behaviors are not all black or all white, it's variants of grey just like almost anything in biology.

Still, something note worthy is that Spinosaurines seem better equipped for foraging larger prey items than they Baryonychine cousins, which doesn't necessarily mean terrestrial hunting.

outer tusk
daring grotto
# fluid inlet Spinosaurus fans we back

also a majority of that bite force is near the back of the jaw, cause the muscles are designed for quick snaps vs crushing. the bite force was strong simply cause it’s a big animal, but in the grand scheme of things this doesn’t mean anything

#

and if you’re snapping quick, you need to withstand the stress of the forces of doing so. the lack of resistance to rotational stress implies that it was not intended for hunting big things that could resist with lots of strength. could it use it? of course. but it sure wasn’t the primary use/target prey

#

i don’t think anyone was ever saying spino couldn’t do anything to terrestrial animals. it’s just not what it was built to handle

hallow spear
tacit pine
fossil ingot
frigid delta
wind prairie
#

so IS monolophosaurus actually considered to be a spinosaurid now?

bright veldt
#

No

hallow spear
white matrix
#

@compact tide real?

sharp canyon
#

Do not listen to ANYTHING from David Peters

white matrix
#

oh okay thank you for letting me knowfoxheart

woeful falcon
#

He who must not be named

sharp canyon
white matrix
bright veldt
#

ngl when you brought it up I thought it was ironic so I didn't say anything

white matrix
#

😦

bright veldt
#

sowwy

white matrix
#

sorry I may be unfamiliar with most of paleontology and might say some stuff that sounds dumb but I try my best to learn more and I appreciate you all for guiding towards that right path

wind prairie
daring grotto
#

gotta love his stuff being some of the first to appear when looking for any pterosaur skeletal that isn’t pteranodon or quetz

halcyon cobalt
#

andshrewsarchus would fit well alongside the rhino sized hyrax

daring grotto
#

andshrewsarchus 😭

white matrix
#

this commission gives pigeon vibes

clever sable
frigid delta
calm jolt
pliant cedar
#

is this rael chat

snow python
#

What are Siats and Chilantaisaurus? Neovenatorids?

calm agate
#

Siats is a Neovenatorid, Chilant iirc is currently in limbo

bright veldt
#

Are neovenatorids even a proper clade? I’ve never seen anything on it that wasn’t in limbo with the other guys.

calm agate
#

So long as Siats and Neovenator clade together, which they do consistently, then yeah the group remains. Same for the fate of Allosauridae being a thing if say Sauro isn't its own genus for example then Allosauridae disolves

daring grotto
#

idek anymore, it usually redirects to just general carnosauria

#

i’ve also seen neovenator shoved into carcharodontosauridae

lavish frigate
sleek dragon
#

That is truly a piece of art

lavish frigate
#

My favorites just after chonk salto and abelisaur looking Alberto

#

Truly paleo art legends

pliant cedar
daring grotto
#

nomen dubium

velvet burrow
#

And what about
Gualicho

daring grotto
velvet burrow
#

Is Gualicho a megaraptoran, a neovenatorid or it's own thing? Is it with Chilantai?dinothink

daring grotto
# velvet burrow And what about Gualicho

valid but it’s classification is all over. Cau et al 2024 put is as a sister taxon to deltadromeus, some have it in neovenatoridae (which is dubious on its own), and some have it only classed as just a coelurosaur

pliant cedar
patent mist
#

It looks a suspicious amount like a elaphrosaur

calm agate
#

Gualicho is very likely a Noasaur, whenever it and Delta are included on the same paper they clade together and Delta has much more solid and consistent positioning than Gualicho does. Safest bet is that.

daring grotto
#

rare instance of people agreeing with cau

turbid forum
#

Thoughts on dis?

wind prairie
pliant cedar
zealous ravine
#

Desmatosuchus jumpscare

turbid forum
pliant cedar
warped peak
#

Are people seriously acting surprised that Spino, the 8 ton theropod, bit reasonably hard?

Like I'm not calling the bite force weak by any means, but it's pretty low compared to the other superpredator theropods like Tyranno and all the Carcharodonts

Just doesn't seem like much of a discovery, 8 ton death lizard bite hard lol

sharp canyon
#

It's like the discovery that the giant crocodile wasn't a picky eater

warped peak
#

Unrelated tangent

How vulnerable do you think non-avian Dinosaurs would actually be to paleolithic weaponry? IE do you think a Bull of the same weight as a Ceratopsian with similar weaponry would fair a better or worse chance?

Scale seems a lot less pierceable than fur, but most saurians didn't have super heavy scales either

pliant cedar
#

ceratopsian has a big shield on its face, so it would do better than a bull, ankylosaurs would also do well unless we just dropped a big rock on its head, and other than that its pretty much the same

warped peak
#

I'm more referring to the less ostensibly armored ones

pliant cedar
#

scales probably protect somewhat better, but against large weapons like big spears its not a significant difference

daring grotto
#

would probably depend on the location too. belly skin is probably thinner than the back or sides

stiff osprey
#

ceratopsians would probably be harder to kill because they specifically have much larger scales compared to the rest, but for most dinosaurs i doubt it would be different than a mammal

tough parcel
#

The Triceratops when deck-mounted railgun

pliant cedar
#

trike will parry with its horns you fool

warped peak
#

I see so it depends a bit on the tool
Say a Sangoan hand-blade vs a Lupemban spear

The sharp blade will have a bit of a struggle on the heavier scales of some herbivorous dinosaurs but that's about it compared to mammals, and the piercing blade of the spear will be roughly as effective against either, correct?

outer tusk
pliant cedar
warped peak
#

Hadn't thought about that tbh. Mammals are dense muscle blobs, with very few vital spots outside of the ribcage

tough parcel
#

You have dense muscle blobs with very few vital spots, it comes free with your ribcage protecting your organs

light oxide
#

Hmm...

Speculative evolution — if mammals evolved in similar body plans as dinosaurs.

halcyon cobalt
#

soft spec at best

stiff osprey
#

ungulates:

warped peak
#

Kangaroos:

fluid inlet
bright sluice
#

Does anyone have a good depiction of the feather extent of a theri?

fluid inlet
#

What are the most reliable estimates of weight for palaeoloxodon and paraceratherium?

outer tusk
#

palaeolo and paracera like bleow >12-13t

outer tusk
halcyon cobalt
sudden wind
topaz shell
outer tusk
topaz shell
#

Mk

(Also what is this timer..)

bright sluice
warped peak
elfin dragon
#

i always find it strange when people say all the dinosaurs died out lol

sharp canyon
#

I think I'd prefer that over people who don't think dinosaurs existed at all

fluid inlet
daring grotto
#

nah, majority of people (who believe in evolution) still think birds are just related to dinosaurs, not that they ARE dinosaurs

stiff osprey
#

I don't blame them, linnaean taxonomy is easier to understand than cladistics

sharp canyon
#

I really wanna see someone's brain explode by trying to understand marsupials and placental mammals

lavish frigate
halcyon cobalt
#

pause

wraith kindle
steady rock
#

how accurate is this sizing?

plucky basin
#

i leave this here for people to talk about

turbid forum
pliant cedar
pliant cedar
round barn
#

Hey guys - Question
Is Gorgosaurus still valid? Or does it now belong somewhere else? Just asking to be updated :)

bright veldt
#

It’s still valid

round barn
#

Thanks

sudden wind
round barn
#

Thank you

fluid inlet
heady thunder
#

That human is perfectly perserved

still prairie
#

Here's a kinda dumb question: What was the movement potential degree in megaraptoran arms.Was it like fully supinated or held at a kinda side angle or so?

pliant cedar
#

which will happen first, the invention of time travel or figuring out what spinosaurus actually looked like and did

tough parcel
#

Considering we're pretty solid on Spinosaurus visually (Minus sail shape and other little things) and on what it did (Fisher of the riverdelta that could easily take whatever it came across given it's smaller), I'd say the Spino

pliant cedar
#

what about ecologically

warped peak
#

I like how every Spinosaur outside of Spinosaurus has remained virtually unchanged since the early 2000s outside of the Irritator jaw thing

stiff osprey
outer tusk
#

Just was curious one what I could either add or change on this lineart I just did

outer tusk
pliant cedar
#

also none of them are particularly unique as far as we know, other than irritator, and it is no where near as iconic as spino

warped peak
#

Even then, Irritator's uniqueness is pretty limited

bright veldt
#

Ichthyovenator is literally the only other spinosaur found with a tail fluke, alongside the messed up back

warped peak
#

Fair point, Ichthy is easily the second most unique Spinosaur

compact leaf
#

that breaks embargo you probably shouldn’t post it

warped peak
#

?

bright veldt
#

????? This has been well known for a decade m8. It’s on Wikipedia.

warped peak
#

Scimitar Spino or Ichthyo

bright veldt
#

Ichthy. Idk what ur talking about with the former unless you said that and it was deleted so I didn’t see it

warped peak
#

I deleted it just in case one sec

bright veldt
#

Ok yeah fair nuff then I didn’t see that in the convo

compact leaf
#

yeah it was the image from one of serenos talks

warped peak
#

One day we'll have more Spinosaur updates

Although tbf we have a pretty concrete understanding of how the family lived and what they looked like at this point

Spino itself is kinda the only wild card left and it's basically solved too

quasi token
warped peak
#

I mean seems roughly right?

bright veldt
#

It fits the accurate reconstructions I know at least

#

Just checked. It’s good. Apparently that thing comes out as 15 tons.

pliant cedar
#

thats the upper estimates for mosa, crazy

warped peak
#

Must be a Friday, looking at him

woeful falcon
quasi token
river plinth
#

Did I miss something cause I keep hearing ppl say rex was over 16 tons or sum and now a guy says lambeosaurus was 7-8 tonsyeshoneyeotrike

pliant cedar
#

that one paper that said that the maximum mass for an animal is usually like 50% more than the average specimens, everyone translated that as 'every dinosaur is massive now'

bright veldt
#

The 16 ton thing is from a complete hypothetical which really isn’t applicable in practical discussion. The 7-8 ton lambeo thing? No idea. But completely wrong.

sullen cairn
#

good chance giant lambeo is just magnapaulia

compact leaf
#

yeah but that isn’t as funny

tulip dove
#

How big were A. louisae and A. ajax?

bright veldt
#

Bout 25 tons?

true cipher
true cipher
sullen cairn
#

when the cerapod is diagnosed by primarily cranial characters

true cipher
river plinth
true cipher
hallow spear
sullen cairn
#

a third mud butte skull length(?) of questionable application has hit the literature

stiff osprey
#

There are 2 kinds of people

#

Less than 572 mm skull and greater than 740 mm skull

versed depot
#

I can't imagine the irritator opening his mouth like a pelican, this image is disturbing

woeful falcon
#

You're in luck, it didn't

lunar copper
#

Irritator in fact, is not an isle hypo

daring grotto
#

that’s not even how pelicans do it

bright veldt
#

The jaws are just flexible. That's it.

outer tusk
steady rock
#

We have made some progress in our attempt to make a robot swim based on data on Megapterygius wakayamaensis, a new mosasaur species whose whole body skeleton was recently disclosed in Japan, and are improving its swimming performance while gradually understanding the swimming.

sullen cairn
#

tyrannosaur measurement consistency really be like trix either has a 124cm femur or alternatively its tibia is longer than its femur

sullen cairn
#

poorly thought out ideas

turbid forum
#

Also why tf is no one talking about how the first spinosaurus fossils got destroyed and then the first oxalaia fossils faced a similar fate

daring grotto
#

so did carcha, and stomatosuchus, and countless others. war destroys

tranquil quartz
#

Stomatosuchus 😔

frigid delta
halcyon cobalt
#

I thought it was mouth crocodile

fluid inlet
round barn
white matrix
velvet burrow
wraith kindle
#

Cenozoic and Mesozoic ones are also overrepresented.

fallow mulch
# fluid inlet

I've been hoping those badges would be on for sale. I want them so bad!

fallow mulch
# fluid inlet

I heard the guys who made them has a redbubble account so you can order those, but I can't find them

zealous ravine
tall prawn
#

Guys how big is sarco

warped peak
#

What?

west coral
tall prawn
sudden wind
#

4 tons

tall prawn
#

Alr

sharp canyon
#

Hey how did large dinosaurs that lived in deserts cope with the heat

crude latch
#

large surface area helps with that allot tmk or maybe it’s the opposite

compact leaf
#

surface area to volume ratio does help a lot

crude latch
#

as mentioned in modding sails would help

native kindle
waxen hawk
#

Spino was more of a shoreline hunter than actualy aqautic predator right???

bright veldt
#

We don’t know. Spinosaurus’s ecology is currently stuck in a borderline childish academic slapfight between two different groups of paleontologists that are both probably wrong in some way.

wind prairie
bright veldt
#

The hottest environments I can think of with super large dinosaurs is like, the Morrison? Gobihadros in the Gobi too maybe?

wind prairie
#

ye
also that gave the impression camels are unspecialized, no they're built for desert life lol

sudden wind
#

Would depend on the season but yeah, average year around temperatures are 9-11°C iirc. Still, depending of the region, there were higher temperatures. Still, it would mostly be a cold desert like modern Mongolia funnily enough.

onyx sedge
#

Anyone know the height of Argentinosaurus BarsBurger?

bright veldt
#

Giganotosaurus and various giant sauropods I know lived in a desert environment but it wasn’t a hot desert either. Was just super dry.

wind prairie
#

actually, aren't there fragmentary remains of some giant dinosaurs in djadochta?

sudden wind
bright veldt
#

Even then the wild camel does just fine in the cold like the bactrian it resembles.

sudden wind
#

Also why do I really realize now that Troodontidae is a highly taxon rich clade lol. They are so frickingly numerous in Asia and yet we keep getting more out of the ground. What a successful group of dinosaurs.

This may be my beginning on a troodontidae obsession.

bright veldt
#

Thank you.

wind prairie
light osprey
#

Nemegt perhaps not being the best desert comparative, having more in common with humid continental climates. Though it certainly still stands that the central Asian desert was pretty mild for the most part, at least with MATs comparable to the Taklamakan down south in the Sichuan basin.

coral dragon
#

unironically the best rex design of all time

warped peak
bright veldt
#

I personally think it was an ambushing slow-swimmer. Like a big snapping turtle. Would mostly just sit there in water bodies and snap at prey when it got close. Don't need to be a great swimmer to do that and sticking to the bottom helps with any supposed stability issues.

warped peak
#

Currents

stiff osprey
#

Currents mostly affect floating animals, less so if they're submerged with their feet (and body?) on the riverbed

coral dragon
wind prairie
coral dragon
warped peak
#

To be fair, with that sail, wouldn't spino lose tremendous amounts of body heat while Lurking underwater?

Seems massively ineffecient

wind prairie
coral dragon
coral dragon
wind prairie
coral dragon
wind prairie
coral dragon
#

(hell creek was 26 degrees at max too iirc)

wind prairie
wind prairie
coral dragon
wind prairie
#

yeah no that's wrong
I left a question on the paleostream discord and I'll have answers shortly, but so far we have evidence it was warm by the presence of crocodilians and palm trees. I'll get some more soon

coral dragon
#

however i would like to see the response to this

bright veldt
#

We know from dietary studies that spinosaurs were fish specialists. Doesn't mean they didn't eat other stuff opportunistically but that's what they ate the vast majority of the time.

coral dragon
wind prairie
coral dragon
#

the biteforce paper was actually something interesting though

coral dragon
# wind prairie scale impressions

very rough, dime sized impressions at that (which funnily enough i've seen speculation previously go around that they're filament pores similar to that of barn owls), not to mention feathers dont get preserved in hell creek rock

bright veldt
#

Large dinosaurs and feathers is a controversial topic with not really a solid right answer right now. There's arguments for both and frankly I think it's just something that needs more time to digest. I think it's more up in the air with traditionally feathered giants like theri and deinocheirus because they have other factors aside from size that could influence their amounts of integument, and at least with rex there's skin impressions that suggest mostly scaly.

wind prairie
coral dragon
stiff osprey
#

For Tyrannosaurus to be scaly in the dorsal side of its hips and neck but feathered everywhere else makes no sense. It would have to have a reduced coat. But to which degree it's reduced is debatable

coral dragon
stiff osprey
#

The most you can realistically give it would be a dense coat covering the sides of the chest, stopping at the neck and hip. I personally would give it feathers everywhere but make them so small and sparse as to be invisible from a distance

tough parcel
#
tl;dr:
New England-Florida swamp hybrid with a little bit of polar seasonal lightcycle thrown in. 
This is all to say that these sort of environment conditions dont really exist in the modern day. You may find a season like it here and there, but the rest of the year will vary.```
Unless smth changed, this should be ok for HC's climate
coral dragon
#

its not php type feathering but its just basically a thin coat

stiff osprey
#

This is kinda pushing it in regards to the known scaly areas. But elephant-hair-like feathering would be my go to for most "scaly" dinosaurs

wind prairie
daring grotto
#

that art piece looks like it’s emulating the CMNH mount

wind prairie
unkempt roost
bright veldt
#

Spinosaurus hasn't really changed since its tail in 2020. It's just that since then there's been two parties of scientists bickering back and forth about how it lived and getting everybody else nowhere.

daring grotto
#

i think the only kinda dramatic changes have been additional potentially assigned cervicals and caudals and the crest shape

warped peak
#

We love the paleo community

We got:

  • Tyrannosaurus is a god respect it or die
  • Spinosaurus: help
  • New small-midsized Sauropod
  • New Abelisaur
  • Please stop disrespecting fossils :(
  • CRAB
storm heron
storm heron
vapid holly
vapid holly
wind prairie
tough parcel
storm heron
#

Well what does "Swimming sail" mean? And its sail seems to be the opposite of what you would want in a streamline swimmer: tall and laterally wide, immovable, (though, it could not be too much of a problem to a sluggish and slow but capable swimmer).

sullen cairn
#

i miss that one guy who thought 99% of collected spinosaurus material ever was molded from clay

storm heron
stiff osprey
#

I believe the hip impression is more dorsal but I could be wrong. Either way, it restricts the feathers to the chest, sides of the ribcage, and along the top of the spine

wind prairie
vapid holly
#

I am a time traveler from the Mesozoic and yes. Can confirm this was who ate my family

stiff osprey
#

Real

velvet burrow
storm heron
stiff osprey
#

By "along the top of the spine" I meant feathers could be present on the top of the neck, back and tail. They couldn't be present on the sides in any meaningful amount because they would have showed up in skin impressions, but if they were small and sparse (like elephant hair) they could be present elsewhere on the body

stiff osprey
#

Totally plausible, I just think it looks silly

wind prairie
#

I mean I can't really do it justice lol it looks a lot better in my head

covert lintel
#

been 66 million years since i last talked here but i'm chiming in to say i still agree with the idea of a sparsely feathered tyrannosaurus. it may not be as aesthetically appealing as something like saurian's old model, but sometimes the more plausible option isn't the coolest one. and also hehe fuzzy tyrannosaur

stiff osprey
#

Regardless of artist skill, I think an animal having feathers only along the top looks dumb, it should at least go down to the arms. Although i guess if we take the idea of feathers being vestigial to the animal it could work

storm heron
stiff osprey
#

It isn't impossible that it had a dense coat and it was lost, but it's highly unlikely. The less feathers you have / the smaller they are, the easier it is for them to go unnoticed in a skin impression

wind prairie
#

wait so the idea of it molting most of its feathers as it ages is unlikely?

storm heron
#

What if, the "coat" of feathers it had varied in density? As in, in some parts of the body had more density in feathers while the rest had smaller feathers which became more sparser the further away they are from the high-density areas?

wind prairie
#

second take

native ravine
#

can someone explain how a sauroposeidon doesn't collapse due to the weight of its neck?

sharp canyon
#

Easy, it's neck is actually surprisingly light thanks to hollow bones

bright veldt
# native ravine can someone explain how a sauroposeidon doesn't collapse due to the weight of it...

The density of sauropod bones varied depending on the part of the body for the purpose of weight saving and weight distribution. The neck for example was heavy pneumitized so it was very hollow. The legs were comparatively dense. This also meant that, compared to another dinosaurs, sauropods can be a nightmare to properly weigh and its why compared to a lot of other groups their size estimates get kinda whack.

hallow spear
bright veldt
#

It was hilariously dumb. The entire paper is founded by a non-biologist having outdated ideas on animal intelligence.

hallow spear
# native ravine can someone explain how a sauroposeidon doesn't collapse due to the weight of it...

I mean Yesnt, it doesn’t collapse its neck doesn’t weigh much and the cervical ribs purpose is to keep it stable(along with muscles and tendons). pneumatic bones will also do that for you, but also the neck should be held more diagonally as there is a study that sauropods cannot hold their heads 12m from their heart

https://journals.biologists.com/jeb/article/219/8/1154/16774/Neck-length-and-mean-arterial-pressure-in-the

compact leaf
#

brachiosaurids sort of avoid avoid that by just raising the whole chest, but sauro has stumpy little legs so it can’t hold as upright of a posture (if we fully agree with the paper)

hallow spear
compact leaf
#

yeah that’s what I hear but it doesn’t hurt to cover your bases lol

hallow spear
#

Fair

storm heron
compact leaf
#

it’s an issue of it being held 12m above the heart not away from it in general

hallow spear
#

^ should have reworded it to be above

wind prairie
storm heron
#

Oh right,

native ravine
#

ah makes sense, hollow neck bones like birds, and pneumatic bones? that's cool, don't giraffes have those as well?

bright veldt
#

No. It was a dumb conclusion made by someone who didn't actually know animal intelligence.

turbid forum
#

Also u know the "thunder rats"? @bright veldt