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>>5126229
I think the best example of what you are specifically talking about is the whole smilodon lips shitstorm that started not with a paper but with a fucking blog post. I also remember the title was something like "every smilodon reconstruction ever? INACCURATE" or something pretentious like that
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File: dimetrodon.png (188.2 KB)
>>5126234
I forgot about that one. Paleofags really have a "This key must go into every hole" mentality. One animal being found with integument means that integument must go on EVERY animal in the clade. Most ridiculous shit I remember was Dimetrodon having fur and whiskers slapped onto it because people couldn't figure out the line between mammal and mammal-like reptile. There's some shit we'll never know for certain due to the nature of fossilization, yet some will insist we can find out everything, even without direct evidence.
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>>5126635
Really funny because you can disprove that mentality by looking at the biodiversity of today. It's like if all cats were extinct and we found evidence that lions had manes. They would put manes on every single cat species including female lions.
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Let people have fun.
Most shit about dinosaurs is made up anyway because we're missing tons of material and mostly just working with bones.
Its insane to me people dedicate a ton of time to know, for sure, an animals pinkie finger was actually angled 2% differently than thought when like 90% of said animal hasn't been found at all and is straight up just imaginary
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>>5126229
>Dakotaraptor being dubious because of some guy pointing out its sickle claw had a vague resemblance to a Nanotyrannus claw. (Yeah no shit they’re both theropods) It’s like they needed a new target to point the dubious finger at after the Nano paper dropped.
Dakotaraptor has been considered potentially dubious for years now and it has nothing to do with Nanotyrannus. Despite your high horse you really don't know what you're talking about.
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>>5126229
>I fucking despise armchair paleontologists.
what are you exactly then?
iv'e never heard of a real paleontologist that's an expert in ALL THOSE TOPICS. You are the thing you hate. Don't worry, we hate you too.
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>>5127979
>>5128048
Incredible how dense you retards are. It does not take much digging at all to know that only one bone describing Dakotaraptor was from a turtle. What I'm talking about is what happened afterwards, with people trying to jump to the extreme conclusion that the entire genus is invalid. There are obvious large dromaeosaur bones described in the Dakotaraptor paper, yet to push a false narrative there are baseless claims saying they're from Anzu or Nanotyrannus. As though we've somehow lost the ability to differentiate the bones of theropods from completely different clades. Thanks for showing exactly what I mean.
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>>5126229
>ven though we already knew about its tooth count
>It’s like they needed a new target to point the dubious finger at after the Nano paper dropped.
Holy shit, quit yapping retard. You have absolutely no idea what you are talking about
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>>5128807
>Paper describing Carno's caudofemoralis and how it made it run fast but turn badly drops.
>Tuber (pic related) takes this paper and makes the extreme conclusion that Carno was a 1:1 analog to a cheetah, dubs it the "Cretaceous cheetah".
>Video blows up and paleo community takes the idea as fact since it sounds sensible and Carno has a visual resemblance to a cheetah too. (Short face, long legs.)
>Entire concept falls apart when you remember cheetahs have to turn well to catch their prey (Their tails are designed as a counterbalance) while Carno couldn't turn for shit.
>Most ignore this because it's easier to think of extinct animals as equivalents to familiar modern ones.
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>>5128887
That image too. Despite being so small, the arms of Carnotaurus had a very wide range of movement. And of course these people treat it as 100% confirmation that this means they wiggled them around for mating dances and probably had colorful display structures in them
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>>5128948
Indeed it is (well the arm wiggling thing is reasonable. Adding unknown soft tissue structures is a couple of steps too far for me) but i've seen people acting like it is a fact and showing abelisaurs not doing it in mating dances is inaccurate
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>>5128952
>And of course these people treat it as 100% confirmation that this means they wiggled them around for mating dances and probably had colorful display structures in them
The dumbest part about this is that it completely neglects Carnotaurus being one of the only carnivores with genuine horns. There is only a handful of uses for horns in nature and nine times out of ten its sparring for mating rights or territory.
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>>5129246
That image you just posted is very interesting because they have some traits common in modern paleoslop such a gross pink fold sticking out of the mouth and scrotum-looking skin dangling from its neck and yet it doesn't look retarded because it was drawn by a very talented artist. Which is a luxury many modern pieces don't have.
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>>5128096
he's right though. you don't know, and will quite literally never know, what they actually looked like, behaved like, lived like. any random retard's guess is as good as yours because you it is impossible for you to be correct
>b-b-b-but we can make le educated guesses
you don't know. YOU DON'T KNOW. so eat a sack of shit. i hate you and the paleontology community so intensely. my idea of dinosaurs will start and end with jurassic park and i'm just as valid as you are
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>>5129568
new study aiming to disappoint kids suggests that T. rex was a slow moving feathered scavenger
>https://www.msn.com/en-us/news/technology/t-rex-slow-feathered-new-st udy-disappoints-kids-rewrites-dinos aur-story/ar-AA1HwQ2c?ocid=msedgntp &pc=U531&cvid=6a18bd9904cc4b23a30b8 dc5d1129707&ei=11
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File: 646d0c9d60b9b.jpg (67.7 KB)
>sit on park bench
>just chilling
>suddenly theres this horrid putrid smell
>smells like the devils shit
>like a festival toilet in the summer heat
>smell gets even worse as you see a guy approaching you
>as he gets closer you see flies circling him
>there is a huge brown stain even on the front of his pants
>brown substance is dripping on his shoes
>holy fuck, almost throw up
>guy is coming to your bench, attempting to sit next to you
>say "Oh no fuck off! You cant sit here!"
>"But why not?!"
>"Because you shat your pants you retard!"
>"Nooo, I didnt shit my pants. How would you even know that? Were you following me around inspecting my anus all day? No you werent there. You dont know. It might be chocolate pudding who knows. My guess is as valid as yours"
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>>5129715
Refer to >>5129711
And by conservative i mean sticking as close as humanly possible to actually known material (aka, not adding retarded soft tissue structures that are impossible to confirm. You know, because in order for science to be science it needs to be provable) not vintage dinosaurs like >>5129718
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>>5130180
I think that one is a case of "we don't have material of the rest if the animal so we are going to give it the same proportions as other palcoderms". Meaning it's all speculation, but the type of speculation that is kind of needed because only the head is known
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>>5130061
You could say the same about a peacock's train. Or how stags will frequently get their antlers tangled up in vegetation or even with another stag's. Sometimes elaborate display structures make you worse at surviving, they can still be successful traits if the reproductive benefit outweighs this.
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>>5130245
I remember i used to watch these guys reviews of the JWE designs but they got boring very quickly. It got to a point where they barely talked about the actual in-game model. Then they turned their logo into prideflag shit and i stoped watching them.
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>>5130245
>clickbait thumbnail encouraging people to swing the pendulum to the complete other extreme and start believing Carno was slow.
Ironic how this is just as retarded as the cheetah idea, just in the opposite direction. People can never just think of something falling in the middle for some reason.
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>>5130245
TLDW
>we don't have Carnotaurus' legs so there is no reason to believe it had longer legs than its relatives which range from short to moderately sized legs
>its large muscles were most likely used for pushing and pulling in whatever which way you imagine they would do these actions for such as tearing apart a carcass or shoving each other
>carnotaurus was most likely not exceptionally fast but fast enough to catch prey items like isasicursor (I know it wasn't found in the same formation but it lived at the same time and on the same continent as carnotaurus)
>redditors are retarded
if you want my guess on how carnotaurus hunted it probably ambushed and dispatched its prey by biting, holding on, and thrashing it in its jaws since carnotaurus’ skull could handle a lot of vertical and horizontal stress and it had a very strong neck. if the prey item was the same size or larger it could use those huge caudofemoralis muscles to either pin its prey or keep its feet firmly planted on the ground.
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>>5130245
>>5130479
Inb4 the lower half of the legs are found and they are actually as long as previously thought and we go back to Carnotaurus being fast. That sort of cosmic coincidence has happening so many times that i am going to assume it's the default every time people start speculating about the unknown parts of an animal. Just look at how they are reconstructing Mosasaurs with long bodies the same way they did in the 1900's
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>>5130485
to be fair the elongation of mosasaurs recently mainly comes from straightening out the spine because people have come to the shocking conclusion that mosasaurs are not whales lol and shouldn't be depicted as being so tubby.
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>>5130251
Honestly it's guys like you that make me happy to see rainbow or tranny flags because every time I do I know there are a bunch of easily triggered reverse snowflakes seething as soon as they lay eyes on them.
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>>5130496
You seem to be exaggerating my reaction for the sake of your narrative. I had already lost interest i the series, seeing the faggot profile pic just made me realize "Huh i haven't watched the last 5 episodes, i guess i don't really care about these videos anymore"
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>>5130498
that's what happens when you go too deep into doing comparative vertebrate anatomy for animals that are totally unrelated to each other. it was part of the initial pendulum swing trend of adding tons of extra soft tissue to animals due to fear of shrink wrapping. a lot of prehistoric reptiles were being compared to mammals during this time, marine reptiles included and since we totally lack anything like the large predatory marine reptiles today and sharks have cartilage instead of bone, whales were used as the measuring stick when we really should've been looking at crocodiles and god damn monitor lizards since monitors are the closest living relatives to mosasaurs. thankfully that's ending but goes to show how destructive paleomemes can be.
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>>5130503
I may bitch a lot in these threads, mostly for comedic effect, but it genuinely makes me very happy that we are finally getting out of the unscientific mid 2010's phase.
As i always say, all yesterdays and its consequences have been a disaster for the field of paleontology.
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>>5128066
what a fucking basedboy bitch response holy shit.
>Oh yeah well where's your proof that these people do these things huh? Pattern recognition doesn't exist, you aren't allowed to remember information presented to you, where's your source for being annoyed? Source? Source your annoyance?
shut the FUCK up you limp-wristed waste of a sperm cell
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>>5130526
then consider the fact that I don't instantly disregard every asian fossil ever found or say insane shit like therizinosaurids and alvarezsaurids weren't real. paleoschizo as in the actual guy has gone so far off the he lives on a different planet now, makes it easier to ignore him desu since there is zero chance of reconciliation or actual discussion with him now.
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>>5130509
I didn't ask for a source and I didn't say OP was wrong.
I said no real paleontologist is an expert in all those topics, meaning OP is an armchair paleontologist just like the ones he's complaining about
I did enjoy your little tantrum and projection though. Thanks. I do enjoy watching retard melties
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>>5130574
the answer is there are multiple possible ways for vertebrates to deal with cold water, and fat is not the most common one.
The first most common is just to hang out in latitudes and depths that aren't that cold.
second is to have antifreeze in the blood and go into cold waters.
third is to get huge and use muscle heat
fourth is to get huge and use muscle heat along with a countercurrent heat exchange forming a primitive warm-blooded metabolism
last and most derived is a combination of all of those along with fat.
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>>5130574
the reason fat is fairly uncommon is because of the energy and nutrient cost.
not only do you have to have a diet that's high energy to produce fat, but you also have to overcome the buoyancy of the fat, meaning extremely heavy bones. And bones are also very costly to grow. For an aquatic animal to grow and maintain thick fat they about have to be fully warm-blooded just to have the energy to get enough food.
Cold blooded marine vertebrates and those with weak warm-blooded metabolisms generally don't have much fat to them.
Mosasaurs last I read were thought to be warm blooded and have fat, something that can be determined somewhat indirectly by the oxygen isotopes in their bones and teeth. Those isotopes come primarily from their food and surrounding water, but some are sorted in their body as well, depending on rate of deposition. Bone or enamel that deposits rapidly will have more cold-water isotopes from food, while tissues that deposit over longer periods of time will have more body-temperature isotopes
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>>5130582
another way metabolism can be inferred is by comparing growth rates in axial bones vs. appendicular.
generally warm-blooded vertebrates will have slow even growth in axial bones of the torso and somewhat faster, less even growth in the limbs and tail.
this is contrasted with cold-blooded vertebrates that have fast, uneven growth throughout the entire skeleton because the limbs and tail are roughly the same temperature as the body and bone growth is entirely controlled by external temperature and diet.
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>>5130585
this is however somewhat modulated in marine vertebrates because water itself is fairly stable in temperature and also highly conductive of heat.
Meaning an animal that spends most of its time in warm, productive water will probably appear to have a warm-blooded bone growth pattern. But that can be determined by distribution of the fossils. If an animal is never found in cold-water environments then it may be cold blooded but just never left warm areas.
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>>5127995
That is very real.
Think about how we know almost fuck all about the entire Eastern-half of the US because fossils are just way harder to find there for various reasons.
Even more tantalizing for Cretaceous era freaks because of the very plausible theory that Nanotyrannus came from the East.
You could have giant bull necked Acrocanthosaurus descendants and long legged Tyrannosaur cheetas living aside one another for millions of years and we'd never know because it is just way harder to pull bones out of the ground in the Eastern US.
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>>5129231
I hate the modern meme that all dinosaurs were smooth sausage monsters without any definition.
Mammals are usually fattier than reptiles or archosaurs. Bovines are particularly fatty. But anyone that has ever been near a cow can tell you that you can see a lot of the skeletal structure of the animal purely casually.
On humans, a natural weight human can have visible ribs, shoulder blades, ridges of the pelvis, etc. And again, humans are fattier than most reptiles or archosaurs.
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>>5130498
Overcorrection from the "dinosaurs are just animals and should be portrayed as such" phase paleontology had. Where the problem was that it was hard to portray them as familiar animals since they are wholly unique creatures. Thus people projected mammalian traits onto them since mammals are the dominant large vertebrates of today like how the dinosaurs (And other large reptiles) were the dominant large vertebrates in their time. So a dinosaur with vague mammalian inspiration would look natural, until you stopped for a moment and realized that the idea of an Allosaurus convergently evolving a vague resemblance to a lion was retarded.
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>>5130786
Another overcorrection is "they're animals, not movie monsters" which led to such gripping artistic movements as "what does T-Rex look like if it is sleeping?"
Which fair enough, T-Rex probably did its fair share of sleeping, but a better question is "what do people want to see a T-Rex doing?" And the answer isn't lounging around. Like if I were going to draw a picture of a lion, it'd probably be hunting or looking regal or something similar. Why? Because there is a very limited market of interest for sleeping lions, and quite a large market for lions doing cool things. Paleoart needs to be art, first and foremost, rather than just "naturalistic depictions of how an animal spends 99% of its time".
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>>5130928
if it's realistic people complain that it's not artistic enough
if it's artistic people complain that it's not realistic enough
the actual solution is to illustrate however you want and ignore people like this thread
the opinions of critics simply don't matter unless they plan on buying some art. And even then there's more than enough customers to go around.
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>>5130928
>but a better question is "what do people want to see a T-Rex doing?" And the answer isn't lounging around. Like if I were going to draw a picture of a lion, it'd probably be hunting or looking regal or something similar. Why? Because there is a very limited market of interest for sleeping lions, and quite a large market for lions doing cool things. Paleoart needs to be art, first and foremost, rather than just "naturalistic depictions of how an animal spends 99% of its time".
nah you're just wrong on this one bro, the increased variety in paleoart has done nothing but improve its profitability and quality. We have more stinkers but we also have more gems.
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>>5130479
>we don't have Carnotaurus' legs so there is no reason to believe it had longer legs than its relatives which range from short to moderately sized legs
Aucasaurus was very closely related and did have fairly long legs along with the same sort of beefy caudofemoralis that Carnotaurus had, so I wouldn’t say there’s no reason to believe they were fast. Maybe not as fast as the memes suggest but still fast enough
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>>5130971
>The correct solution is to draw paleoart specifically the way i like it
pretty sure they'll draw anything you want for enough money.
your failure is being poor and opinionated. If you want your opinion heard stop being poor.
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>>5131760
If I remember right he posted a video attempting a point-by-point rebuttal of the paper a day after it was published and then within 24 hours deleted his video and issued an apology and retraction of his rebuttal.
I could be wrong, my memory isn't perfect.
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>>5131850
I think he took longer to delete it but yeah pretty much. And after that he left the topic of dinosaurs entirely. I guess because he couldn't pretend to be a paleontologist anymore the topic was not interesting for him anymore
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>>5131869
Thank you, Anon. That was an absolute delight. There's not a single good word on him. What's the context with the response to Trey's video on scales, did they actually respond? I love this drama.
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>>5132372
No. It’s just Brusatte talking about his friends and the research they do. He’s not an especially talented writer.
Naish and Barrett’s “Dinosaurs: How they lived and evolved” is a much better contemporary review. Naish has his particular quirks and they are lean to embrace new studies and trendy ideas without a lot of skepticism (especially if they’re behind them) but it’s overall worth a buy. You can also go back and read “the dinosaur heresies” by Bakker. It is a much more fun book. Just use Wikipedia to get more contemporary info. Check the sources ofc.
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File: 1772793155918999.png (108.0 KB)
I'm curious if anyone has heard anything more about this.
Paul Sereno, a few years ago seemed to have put a nail in the coffin of Spinosaurus having any real aquatic adaptations, but just googling around earlier I found an interesting reference to Nizar Ibrahim and co. working on a pretty substantial response a few years ago that otherwise seems to not really have reference elsewhere. The abstract is about a talk from 2024, which is already 2 years ago.
>https://www.researchgate.net/publication/381260634_Spinosaurus_aegypt iacus_resolving_weighty_matters
I'm curious if anyone has mentioned anything more about this.
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File: IMG_4464.jpg (43.4 KB)
>>5132379
Spino may be a water dweller but those depictions of it having a huge tadpole-like tail are retarded. That is my personal bias. I wholeheartedly believe that the "accurate spinosaurus call" reconstruction bs where it's just a slowed down loon call are more scientifically accurate. Because I like Spino and those depictions of him looking like a quadriplegic just don't feel right
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File: IMG_7609.jpg (241.7 KB)
>>5132664
The tail is actually the only thing we can say with reasonable certainty is accurate. The body proportions are a result of scaling elements from different individuals together (some based off pictures of the destroyed holotype). The tail is articulated, but it prob looked les tad pole-ish and more like basilisk’s tail.
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