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Anonymous
ITT Fun with outdated paleoart

This is - believe or not - supposed to be a diplodocus.
>> Anonymous
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>> Anonymous
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And this is a woolly rhino.
>> Anonymous
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>> Anonymous
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lol paleoart
>> Parasite !0IWTTbo3jA
>>222525
So I didn't follow, what the official theory about stegosaurus "thing" on its back? Are they officialy placed like a roof tile? Did they managed to find a use for these things, to?
>> Anonymous
>>222543

Last theory I heard was it was a cooling system of somesort, as blood circulates around the fans it gets cooled by the surrounding air.
>> Anonymous
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>>222687
That theory got debunked recently. Apparently they were covered by a thick layer of ceratin, and could not have worked as heat radiators. I guess they've gone back to the "looking bigger to scare the predators" and "looking sexier to female stegosaurs" hypoteses.

I've once seen a really ancient stegosaur restoration as a sort of bipedal dinosaurian porcupine. Too bad I can't find it anymore. :(
>> Anonymous
lookd like a cat in heat
>> Anonymous
>>222776
One account (I forget which) had them pumping blood into them to redden them and put on an even more intimidating show. Could possibly have been in their mating shows as well.
>> Anonymous
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The Crystal Park dinosaurs are pretty hilarious. This one is supposed to be Iguanodon.
>> Anonymous
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>>222984

err...Crystal Palace Park. This one is Megalosaurus.
>> Anonymous
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>>222966
Walking with Dinosaurs: Time of Titans.
>> gizmogal !MmLOyiCYJs
if you guys like outdated stuff, you should check out this blog called paleo-future.... hilarious old artworks.
>> Anonymous
How does one define whether Peleoart is outdated or not?

I mean, none of it's terribly relevant.
>> Nagi
>>223019

If it illustrates something that we know for a fact just isn't true anymore (scaly dromaeosaurs, bipedal dinosaurs walking perfectly upright like humans, tail dragging, that sort of thing).
>> Anonymous
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Hi guys, this sauropod illudtration is outdated because the head is raised higher than the hip, amirite?
>> Nagi
>>223026

Not necessarily. Diplodocids couldn't raise their heads very high, true, and that Supersaurus is getting kind of up there in the upper limits of just how far it could conceivably reach, but that's not an unreasonable angle for it to be able to life its head at. I imagine once it gets a mouthful of food, it'll drop its head back down to the more parallel angle those guys in the background are at.
>> Anonymous
>>223011

no dont. fucking waste of time.
>> Anonymous
If Sauropods cant lift their heads up higher than their hip, than why do they have longs necks? What advantage does the long neck give it otherwise?
>> Anonymous
>>223094

balance their tails?
>> Anonymous
>>223094
sweeping side to side movements?
>> Anonymous
>>223094
duh it makes them a perfect bridge for dinosaurs that can't swim, and also helps the predators to kill them faster. It's a win win situation, evolutionarily speaking of course.O_O
>> Anonymous
>>223103
I thought the tail is to balance their necks...lol
>> Anonymous
They could lift their heads higher than their hips. Some hack paleontologist don't consider the higher atmospheric pressure and other such factors from back then. They figure out that it wouldn't work today and go running to the presses thinking they'll be the newest person to revise how a dino looks. Because paleontologists had to update how extinct animals looked so many times it's become part of the job to them to find such things to change.
>> Nagi
>>223145

The problem with this assumption is that it doesn't take into account the fact that it's still generally accepted that some families of sauropod (brachiosaurs, camarasaurs, possibly titanosaurs) did indeed hold their heads and necks much higher than their hips. The primary groups that're seen to hold their necks parallel to the ground were the diplodocids and omeisaurs, because a re-evaluation of their neck vertebrae indicates that the necks were MUCH stiffer and MUCH more inflexible than originally thought. They couldn't crane their necks up in all those elegant swan-like postures we're all so used to seeing in artwork and museum displays because they'd break their necks in a dozen different places just trying it.

>>223094

For an animal that has to consume massive amounts of food to sustain itself, a long neck gives it a wider, sweeping range with which to graze from. It minimizes the energy burned by going to the food because the body can stay in one place more often while the head reaches out and clears a wider swathe of greenery than other herbivores. Just because diplodocids and omeisaurs couldn't browse treetops like other varieties of sauropod doesn't mean they still didn't benefit from having a long neck, as it would've given them an exceptional reach in acquiring low and mid-level vegetation, much more than other herbivores of the time.

The tail was more likely used to counterbalance the head, not the other way around. It explains why the more horizontally-oriented diplodocids have absolutely huge tails countering the fact that their necks and heads are stretched so far out in front of them, while other sauropods who held their heads habitually higher generally have shorter and less massive tails. They aren't always holding their heads way out in front, and as a result a lot of the weight of the neck and head is resting closer to the center of gravity, and thus there's less need for a heavy counterweight coming out the back.
>> Anonymous
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>>223197

Is the vertebrae stiff moving horizontally or just up and down? Diplodocus has those rodlike projections on it's vertebrae that go backward. This reminds me of a rattlesnake skeleton and they move mostly side to side.

Also, phail skeleton from 1910
>> Anonymous
>>223350

Disregard the rattlesnake comment, i dont know what I was thinking.
>> Anonymous
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>>222966
About those blood vessels: apparently they have now been interpreted as the blood supply for growing the ceratinous sheath on the bony plates, and also for regenerating and growing new bone. They are also present in the thagomizer spikes and stegosaurids that had sharp spines instead of wide plates, so it's the most likely explanation.

Also, some segnosaurs. Now that I've gotten used to the freaky giant chicken look, it's funny to think that just 20 years ago those things were restored as beaked sauropod-like quadrapeds.
>> Lucemon !!xbleH73h30k
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sweet monkey Jesus, this is supposed to be Spinosaurus?
>> Anonymous
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does /an/ know what the hell happened to trachodon?
I believe that the name came before edmontosaurus, isn't it?
>> Lucemon !!xbleH73h30k
>>223599

>Trachodon (meaning "rough tooth") is a dubious genus of hadrosaurid dinosaur based on teeth from the Campanian-age Upper Cretaceous Judith River Formation of Montana, U.S.A.[1] It is a historically-important genus with a convoluted taxonomy that has been all but abandoned by modern dinosaur paleontologists.[2]

>Interestingly, despite being used for decades as the iconic duckbill dinosaur per antonomasia (see here for a brief discussion on its use in toys and popular culture), the material it is based on is composed of teeth from both duckbills and ceratopsids (their teeth have a distinctive double root[3]), and its describer, Joseph Leidy, came to recognize the difference and suggested limiting the genus to what would now be seen as ceratopsid teeth.[2] Restricted to the duckbill teeth, it may have been a lambeosaurine.[4]

Yeah, it was a mistake. Edmontosaurus is Trachodon.
>> Anonymous
In b4 Tyrannosaurs with F-14s
>> Anonymous
>>222526

oh shit, its an ugly unicorn
>> Anonymous
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I managed to find the "jurassic porcupine" I mentioned in>>222776although I can't be 100% sure it was supposed to be Stegosaurus. Then again, I'm not sure the artist was either.
>> Anonymous
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This on the other hand is a Jurassic lacertid lizard.

Just kidding, it's supposed to be Hypsilophodon. Yeah, I wouldn't have guessed either.
>> Anonymous
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Of all the old Iguanodon restorations, this is the strangest I've seen so far. It is based on a fairly complete skeleton, yet it's even more lizard-like than the awfully inaccurate Crystal Palace Iguanodons.
>> Anonymous
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Apparently in the 19th century, everybody assumed life in the Mesozoic was all smiles and laughter. Happy Laelaps is happy.
>> Anonymous
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This was just too hilarious not to be included
>> Anonymous
>>223697
dick kick? cunt punt?
>> Anonymous
cloacattack?
>> Anonymous
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Ankylosaurus with lizard-style legs
>> Anonymous
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t-shirt design showing ballerina coelophysis.
>> Anonymous
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retarded allosaurus
>> Anonymous
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Brontosaurus in all his glory... until proven to be an imposter. Stupid brontosaurus....
>> Anonymous
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>>223697

It looks like the hadrosaur is saying "excuse me, wtf are you doing"

Pic is of a possible evolution of Troodon if the dinosaurs never died out.
>> Anonymous
>>223713
That looks way too humanoid.
>> Anonymous
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I had this book called Tyranasaurus Was Beast when I was litte... even then the art was outdated, though.
pic related, and here's link if anyone is interested in ol' Jack Perlutsky poems from it...
http://books.google.com/books?id=sYQKZuQzeMUC
>> Anonymous
>>223724

Oh shit, I remember that book. I had so much dinosaur crap when I was a kid. I wonder if it's still packed away somewhere.

It's not like the new books aimed at kids are much better, though. A few days ago I bought this little tin of plastic dinosaurs because it was only a buck, and it comes with a kids' book which is full of crap like "Diplodocus was the longest dinosaur that ever lived [ . . . ] it stayed in water for most of the time, out of reach of its fierce enemies."

I don't get it because if you're teaching kids words like "diplodocus" anyway why would it be any more difficult to actually get the information right?
>> Anonymous
>>223713
>>Pic is of an impossible evolution of Troodon if the dinosaurs never died out.

Fixed.
>> Anonymous
>>223731
It could be worse. It could be teaching children how tyrannosaurs used to be herbivores with Adam and Eve in the garden of Eden 6000 years ago.
>> Anonymous
>>223713
Ugh, that is some anthropocentric shit right there.
>> Anonymous
>>223722
What else did you expect?
>> Anonymous
>>223722
>>223732
>>223744
>>223762

Yeah no shit. Because all sentient beings have to look like humans, right?
>> Anonymous
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>>223713
Reptoid conspiracy bullshit, in MY /an/?
>> Anonymous
>>222524
Low-rider
>> Anonymous
>>223744
>>223722
Ever think maybe a bipedal body structure is one of the most efficient ways to evolve? Huh? Ever think of them apples?
>> Anonymous
>>223798

So that's why all animals are bipeds. Oh wait.
>> Anonymous
>>223819
No, just those that achieved higher brain function and went on to master their environments...
>> Anonymous
>>223826

So, one species?

intelligence =/= evolutionary superiority
>> Anonymous
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>>223826
>> Anonymous
bipedalism in humans was brought about for travel efficiency. humans have the ability to run their prey down, after their prey tires out.

it's not a matter of intelligence.
>> Anonymous
>>223835
Source?

It doesn't matter how energy efficient we are if by the time we get to the prey they've already rested.
>> Anonymous
you know what else is bipedal? Kangaroo rat. GTFO.
>> Anonymous
>>223837
>if by the time we get to the prey they've already rested.
that means were more energy efficient, you dumbass
>> Anonymous
>>223839
Yes, see

>>It doesn't matter how energy efficient we are

you mongoloid.

Even if we're more energy efficient if we get to the prey and the fucker gets up and runs off again it's fucking useless.
>> Anonymous
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inaccurate nostril locations.
>> Anonymous
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>> Anonymous
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>> Anonymous
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>>223697
>> Lucemon !!xbleH73h30k
>>223843
still the best T. rex look

>>223846
LOOK AT MY TINY LEGS. GOD DAMN
>> Fishman
>>223697

"MY BEANS!"
>> Anonymous
>>223798
Ever think that dinosaurian bipedality is way more energy efficient than human bipedality?

Not to mention that dinosaurs have leg muscles that attach into the tail. Losing the tail makes almost as little sense for a dinosaur as losing a pelvis does to humans. The dinosauroid is full of fail.
>> Anonymous
>>223843
Also inaccurate wrists (as with all JP theropods), but it still remains the most realistic Tyrannosaurus on film.

But if we wait another 60 years, I'm sure someone will make a better one...
>> Anonymous
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What's saddest about this picture is that it was made in 2003.
>> JT
>>223835

Which is why people can run as fast as deer and gazelles?

Oh wait.
>> Parasite !0IWTTbo3jA
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Early representation of a diplodocus.
>> Anonymous
>>224031

I wonder who this clasmayer guy is, and whether he is an otherkin.
>> Nagi
>>224056

I think this was actually some old-fashion deliberate satire. If I remember right, when scientists started mounting sauropod skeletons in museums back in the mid/late 1800s, a war of words erupted between American and German scientists over how to properly erect the skeletons. The Germans wanted to mount them like lizards with their legs splayed out, while the Americans wanted to mount them with their legs directly underneath, citing the fact that the animals' torsos would force them to live their entire lives in trenches if they walked splay-legged.

Not hard to see who won that one.
>> Anonymous
>>224052

facepalm.jpg

Humans (Homo sapien and the other species of human) evolved for long distance endurance running. So while a gazelle or a lion can put on bursts of high speeds, they tire after a short distance. Humans evolved for slower, endurance running, letting them track prey over distances and continue running after their food got tired.

Marathon motherfucker, have you heard of it?
>> Anonymous
>>223844
my favorite ever
>> Anonymous
>>224112
So they evolved flexible-spine, vertical-oriented bipedalism AFTER they mastered the use of tools in order to outrun prey? Or did they run down gazelle and lions and kill their prey by biting into their jugular and bare-knuckle boxing them to death?
>> Anonymous
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lulz
>> Anonymous
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amidoinitrite?

Outdated... Paleoart?
>> Nagi
>>224134

No, that's certainly accurate. Just because primitive man had an equally primitive grasp of art doesn't mean it's not accurate by their standards.

After all, they witnessed their subjects firsthand.
>> Anonymous
>>224133

This turned out to be inaccurate?
>> Anonymous
>>224127
Who says they ate meat before bipedalism?
>> Anonymous
>>224145
Our knucklewalking ancestors weren't primarily carnivores or predators, which is what makes the theory that we evolved bipedalism to rundown prey so flawed. At that point they were more like easy prey. They didn't become long-distance hunters until long after developing bipedalism which means it isn't the reason why the mutation originally became a widespread adaptation, despite how beneficial it may have been for that purpose.
>> Anonymous
>>224112
sorry to disappoint you son, but marathon is only a job of specially trained humans. the average human is naturraly slow, and doesn't have any resistance to effort. Any average house dog could do better than us.
>> Anonymous
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>> Anonymous
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>> Anonymous
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>> Nagi
>>224142

Microcraptor couldn't really splay its legs out that wide. Modern theories have the animal positioning its legs low under its body and letting the feathers take on a "biplane" type appearance, or tucking the legs straight back against the body and the feathers creating an airfoil or rudder type effect.

Or some combination of the two. The latter to take off, the former to guide it in to land. Something like that.
>> Anonymous
>>224056

Lulz, wonder how many trenchdiggersaurus does this guy employ
>> Anonymous
>>224156
We didn't have knuckle-walking ancestors. We had bipedally walking, tree-dwelling ancestors. That means it's the chimpanzees that changed their posture after moving from rainforest canopies to the ground, not humans.
>> Anonymous
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>>223787
lol?
>> Anonymous
>>223708
Does anyone have sauce for that pic? I remember having a thin picture book with it.
>> Anonymous
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I'm off to the doctors.
Motherfucking rickets.
>> Anonymous
>>224500

Haha.. poor Diplo.
>> Anonymous
>>224376
...I'm going to be optimistic and assume you're joking.
>> Anonymous
Goddamn, this thread makes me realize that I'M fucking outdated as far as DINOSAUR SCIENCE goes. WHAT DO YOU MEAN STEGOSAURUS PLATES AREN?T FOR PROTECTION?

WINGED RAPTORS? WHAT? ON JEEPS?
>> Anonymous
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INACCURACY
INACCURACY
INACCURACY
>> Anonymous
>>224642
I think you missed the part where they were talking fucking dinosaurs.
>> Anonymous
>>224643
I missed the part where they were fucking.
>> Anonymous
>>224645
It was edited out.
>> Anonymous
>>224642
LAND BEFORE TIME XXX, THE GREAT VORE AND UNBIRTH ADVENTURE!!!
>> Nagi
>>224498

The Giant Golden Book of Dinosaurs. I have it, too.

Also this link. Go to it for massive lulz.

http://homepage.mac.com/doubtboy/dinosaurbooks.html
>> Anonymous
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This thread wouldn't be complete without a Brachiosaurus choking under the crushing pressure of water.
>> Anonymous
>>224733
but that's what their long necks were for. Nature's periscope.
>> Hyper Cutter !XQ6W0CNp/o
>>Who says they ate meat before bipedalism?
The fact that chimpanzees (and baboons, for that matter) eat meat when they can catch it, for one.
>> Anonymous
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>>224733

No, now it's complete.
>> Anonymous
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Oh, Disney.

There's also a black centaur servant-girl in this movie, but I don't think that's relevant.
>> Anonymous
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this may be somewhat inaccurate
>> Anonymous
it's not about humans evolving bipedalism for hunting, it's because of long distance efficiency. The outrunning prey was just an example of a human's efficiency, and was never stated as the reason for it.

Most predators evolve the exact opposite way of low stamina and quick speed.
>> Anonymous
>>225870
Well, it's harder to say if raptors had machine guns or terrorism, but we do know they had feathers...
>> Anonymous
>>225889
you're very unpatriotic
>> Anonymous
>>225890
Not really, just unamerican.

Also, the paper on a supposed fossilized machine gun shell from the Yixian formation hasn't yet been formally published.
>> Anonymous
What kind of intelligent creature, who can transform the environment and invent technology, would walk on all four then stand upright to use their form of hands, then get back on all fours continiously, talk about a back strain.
>> Anonymous
>>225923
are you like a retarded sphinx?
>> Anonymous
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>> Anonymous
>>225954
Explosive diarrhea?
>> Anonymous
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>> Anonymous
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>>225740
>> Anonymous
>>225889
>>225892
That's not a machine gun. It's an assault rifle.
>> Anonymous
>>225871
Energy efficiency was useful in getting from one woodland region to another in search of food as fast as possible while exerting less energy than knucklewalking. The outrunning prey example was completely idiotic and baseless because AT THAT POINT HOMINIDS DIDN'T HUNT OR LIVE IN OPEN REGIONS, nor were they (or are they) generally able to outrun prey.
>> Anonymous
>>223026
youre gay because you suck dick amirite?