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Great Stock Theropods by Tomozaurus Great Stock Theropods by Tomozaurus
So, I've been requested by Eriorguez to create illustrations for the "stock dinosaur" page over at TV Tropes. So be expecting a lot of works similar to this one coming shortly.
It's essentially going to be paleo-accurate counterpart versions to the 'Psuedosaurus' I've been working on.

This is the first, obviously. The two most frequently used stock dinosaurs, the Tyrannosaurus and the "Raptor" represented by Deinonychus and Velociraptor.
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:iconjoeabuy1000:
joeabuy1000 Featured By Owner Jan 26, 2014  Hobbyist General Artist
It's funny how thinking of an anthropomorphic Tyrannosaur sporting a human hairstyle is much closer to the actual probably integument of Tyrannosaurus than all those TV shows and movies that set it out to be this cool, scaly-looking thing, though some at least have the dignity of admitting they were wrong (Walking with Dinosaurs at least acknowledged the birds are dinosaurs deal in-show, but kept the featherlessness of the coelurosaurs in all their subsequent programs for everyone sans birds up until the panned movie, and gorgosaurus is still noticably featherless). The recent discovery of that patch of tyrannosaur skin, previous evidence pointing to mosaic scales, and Yutyrannus makes me feel justified that Tyrannosaurus and its subtropical kin had both to varying degrees.

Moreover, non-pennaceous feathers kinda look like hair. One can't help but imagine a T. rex with a dodgy toupee or a beard to top everything off, but that's veering into speculative territory, and not in a good way.

We tend to see birds as wimpy, culturally speaking, and the whole "birds are the true heirs of the dinosaurs" and "some dinosaurs definitely had feathers," kinda hit us straight in the mammalian pride. Funnily enough, no one bothered to complain when we started portraying cynodonts with hair, even though the evidence for it is tenuous.
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:icontomozaurus:
Tomozaurus Featured By Owner Jan 26, 2014  Student General Artist
Thanks for the comment. All I'll say is I've looked into the supposed patches of tyrannosaurid skin as much as is humanly possible without access to the actual specimens, and all I keep stumbling upon is that the evidence for scales is not particularly compelling. If the impressions show us anything they are bumpy tubercles akin to a rhinoceros or a plucked chicken, not mosaic scales.
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:iconjoeabuy1000:
joeabuy1000 Featured By Owner Jan 26, 2014  Hobbyist General Artist
Interpretations may have changed on the nature of the BHI 6230 specimen in recent times (it's the one that earlier material suggested had been scales, but upon closer inspection does indicate naked skin as you have described) so until further evidence is presence, I stand corrected. 

A rhino-like T. rex with hairlike protofeathers is still a very scary thing to behold. Anyone who says "feathered dinosaurs aren't scary" ought to see chickens roosting in the dark. Suddenly those bad childhood memories seem somewhat vindicated.
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:icontomozaurus:
Tomozaurus Featured By Owner Jan 27, 2014  Student General Artist
Personally I think any 12 meter predator is a very scary thing to behold.
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:iconjoeabuy1000:
joeabuy1000 Featured By Owner Jan 27, 2014  Hobbyist General Artist
Totally. Unless you ride it as your loyal steed. In which case it might be glorious, assuming that one trained it well enough.
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:iconpierredelarge:
PierreDeLarge Featured By Owner Aug 27, 2013

Great that you have given the T-Rex feathers as the evidence is too strong to ignore. And as a rule of thumb, if we do not know whether a Theropod has feathers or not, we always should assume it did have feathers as feathers have been found in almost all Theropod group; in other words, most Theropods are now known (I am sick of saying thought, it is a scientific fact now) to have feathers.


I for one think that feathered Theropods are far more beautiful and fantastic than those silly big lizards that they got depicted as. The truth is that are are fundamentally birdlike, feathered and endothermic, except most cannot fly (other than birds and maybe things like microraptors) and they usually have teeth (except for the likes of birds and ovirirapatorids) rather than a beak. If people saw them they'd think them weird, often massive, birds.


Incidentally they have found a complete specimen of Tyrannosaurid that is almost as big as a T-Rex called a Yutyrannus. It certainly had feathers on at least many parts of its body, and probably completely covered it. With more large Theropods being found with feathers, it is now more likely that T-Rex adults were feathered in at least many regions of the body. 

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:icontheomnivore:
TheOmnivore Featured By Owner Nov 6, 2013
Y. huali wasn't "almost as large" as T. rex. 1.4 tons with 9-10m length vs 6-7 tons with 12-13m length. Y. huali is the okapi, while T. rex is the well-grown african elephant bull.
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:iconnovablue:
novablue Featured By Owner Jan 15, 2013  Hobbyist General Artist
I really, really approve of the fact that the t-rex has a more skin-like structure. Assuming it evolved from ancestors with proto-feathers and lost the due to size or whatever (fair enough, I suppose) I have been wondering if it wouldn't mean they'd have skin rather than scales, I've never heard of an animal that re-evolved scales lol
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:icontomozaurus:
Tomozaurus Featured By Owner Jan 15, 2013  Student General Artist
Precisely. Besides, from what I've heard, most of the undescribed skin impressions show naked skin in any case. I've heard it described by a couple of palaeontologists who've seen them as "lacking scales", "like a birds" likened to a plucked chicken, and "like an elephant's hide". So no, it appears it was not a scaly animal.
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:iconwynterhawke07:
Wynterhawke07 Featured By Owner Jun 6, 2012  Hobbyist Writer
Did T.rex have feathers? Dromeosaurs and other maniraptoran theropods did.
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:icontomozaurus:
Tomozaurus Featured By Owner Jun 7, 2012  Student General Artist
Too little evidence to tell at this point. The most parsimonious answer at the moment is "probably, in some form".
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:iconwynterhawke07:
Wynterhawke07 Featured By Owner Jun 6, 2012  Hobbyist Writer
I correct myself: All known skin impressions from large tyrannosaurid specimens show mosaic scales, although that does not preclude the existence of filamentous feathers.
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:iconthemorlock:
TheMorlock Featured By Owner May 25, 2012  Student General Artist
I just saw this on TV Tropes! I like!

One suggestion, though: You might want to darken the lines, because the velociraptor is hard to see.
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:icontomozaurus:
Tomozaurus Featured By Owner May 25, 2012  Student General Artist
I am aware, I will be doing this at some point; though the thought is niggling at my mind that I might re-do them completely instead.
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:iconlaughing-dove:
Laughing-Dove Featured By Owner Apr 3, 2012
These are lovely, although I do wonder a bit at the tyrannosaur feathers--mostly because it had no way of preening itself. That's the main reason vultures don't have feathers, and a tyrannosaur doesn't have much in the way of counterbalance for twisting around to preen it's tail. I would honestly wait on more conclusive adult plumage evidence before going for it.
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:icontomozaurus:
Tomozaurus Featured By Owner Apr 4, 2012  Student General Artist
...and then, Yutyrannus: [link]
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:iconpaleocentric:
PaleocentriC Featured By Owner Jan 25, 2012  Hobbyist Artist
These are gorgeous, Tomo. This and your langstoni restoration brought instant smiles.
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:icontomozaurus:
Tomozaurus Featured By Owner Jan 25, 2012  Student General Artist
Thanks!
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:iconshoopwoop17:
ShoopWoop17 Featured By Owner Dec 13, 2011  Hobbyist General Artist
I have a question. It seems unlikely that an animal as big as a rex had feathers, trapping heat. Is there any evidence for it? And very nice drawngs btw
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:icontomozaurus:
Tomozaurus Featured By Owner Dec 13, 2011  Student General Artist
Thank you. Firstly, you are operating under a common misconception. Feathers are not hair, and they are actually very effective at keeping heat out as well as in. They also protect the animal from sunburn, hence why I have illustrated the feathers along the dorsal surface. All the direct, physical evidence we have for feathers on Tyrannosaurus is undescribed at the moment unfortunately. One specimen apparently shows a small patch of branching feathers and another is more recent from a younger specimen and we know only that there is fuzz present, not where it comes from.
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:iconshoopwoop17:
ShoopWoop17 Featured By Owner Dec 14, 2011  Hobbyist General Artist
Well yes, I have heard that, and am learning. Now is the fossil evidence of Tyrannosaur skin that wrinkly?
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:icontomozaurus:
Tomozaurus Featured By Owner Dec 14, 2011  Student General Artist
The only Tyrannosaurus skin we currently have is in tiny little patches, so it is too hard to tell. This texture here comes from modern birds, wherever feathers were once present and then are loss the skin is usually very saggy and wrinkly, so this is what I went with here. Additionally, dinosaurs that show extensive skin impressions (hadrosaurs, Carnotaurus) show numerous large wrinkles and folds in the skin.
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:iconshoopwoop17:
ShoopWoop17 Featured By Owner Dec 14, 2011  Hobbyist General Artist
Ah. Well it was originaly JP that got me into these guys, but right now, I hope they were completely covered. Your bald raptor, a hideous animal. Not bad drawing, but like a vulture. Crazy fanboys.
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:iconmattmart:
MattMart Featured By Owner Nov 2, 2011  Hobbyist Digital Artist
"Dinosaurs are a grouping of animals tiny to large, bipedal or quadrupedal, eating plants, meat, or both, but *always land-based*."

I wonder how popular, over-generalized explanations of why plesioraus etc. are not dinosaurs will cope if we ever find an unambiguously aquatic non-avialan dinosaur? :) I always thought "archosaurs with truly erect hind limb posture" was closer to the mark and avoids defining dinosaurs based on what they aren't (and also includes avialans, many of which are not quite land-based).

Great illustration though, skin/feather textures especially!
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:iconjohnfaa:
JohnFaa Featured By Owner Nov 2, 2011  Student Writer
Microraptorines, though, did had hip sockets directed slightly upwards, which probably indicated a slight sprawling posture...

They also make the definition that "no flying reptile was a dinosaur" utterly false, but then again Aves are flying dinosaurs as well...
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:iconmattmart:
MattMart Featured By Owner Nov 3, 2011  Hobbyist Digital Artist
So did hesperornithines and some modern diving birds. But tetrapods are usually defined as four-legged vertebrates, and it's implicit that that means *primitively* four legged, so snakes etc. don't seem to cause any confusion.
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:iconjohnfaa:
JohnFaa Featured By Owner Nov 3, 2011  Student Writer
But then again, an unambiguously aquatic non-avialan dinosaur would also not change the defenition that dinosaurs were primitively terrestrial.
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:iconmattmart:
MattMart Featured By Owner Nov 3, 2011  Hobbyist Digital Artist
True, but all reptiles are primitively terrestrial, so this can't differentiate dinosaurs from say, sauropterygians.
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:iconjohnfaa:
JohnFaa Featured By Owner Nov 3, 2011  Student Writer
Perhaps if Sauropterygia itself is descendent of aquatic reptiles...

After all, many aquatic sauropsids of uncertain affinities are known from the Triassic.
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:icontomozaurus:
Tomozaurus Featured By Owner Nov 2, 2011  Student General Artist
Agreed, true erect-limbed archosaurs is a little better and doesn't leave out hesperornithiformes or penguins etc. though it may include all dinosauriformes as well weather or not that is an issue (depends on what you define "dinosaur" as).

Thanks!
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:icondurbed:
Durbed Featured By Owner Nov 1, 2011
Fine work! but why the straight legs on Tyrannosaurus...?
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:icontomozaurus:
Tomozaurus Featured By Owner Nov 1, 2011  Student General Artist
I dunno, that's just how I decided it was going to be standing :P
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:iconeriorguez:
Eriorguez Featured By Owner Oct 31, 2011
Awesome art! I took the liberty of adding it to the article, take a look and tell me if you like it that way! [link]
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:icontomozaurus:
Tomozaurus Featured By Owner Oct 31, 2011  Student General Artist
Thanks. Yeah, that looks good.
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:iconalbertonykus:
Albertonykus Featured By Owner Oct 31, 2011
Very good. Great to see you on the job!
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