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E-Smaniotto — Sketch-Featherless Deinonychus

Published: 2011-06-07 15:03:57 +0000 UTC; Views: 3695; Favourites: 56; Downloads: 122
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Description Paleontology is wonderful. The end. There is little to do.
Why? Because it's an endless challenge: if you think something it's right, then in a blink of an eye it reveals to be wrong. And you think how to make a prehistoric beast more realistic and this work it's very hard. Hard but in a good way. Urge you to seek the truth about the great creatures of the past. Ah, what a sublime feeling.
Why did I write that? The motivation is that I recently read an interesting post by Matt Martyniuk on his blog DinoGoss talking about the position of the wrists in theropods. Taking as inspiration a work of artist Nobu Tamura (for those who don't know who he is, just remeber that the various reconstructions of dinosaurs and / or other prehistoric animals that are on the english version of Wikipedia are made by him), these features are often introduced to the public neglected.

That was so inspiring so...So, here I am.

Part One: a small pattern depicting a naked Deinonychus, to see the animal without the cloak of feathers.
A couple of things: in addition to be "flesher" (everywhere, not just on the skull; in most reconstructions it's literally skin and bones), the two things that are most visibles are - A) The position of the forelegs and B ) The tail strongly inclined downwards.
A) is a direct result of a post written by Hone on the position of the limbs of Microraptor. Dromeosaurid's could'nt bend the forelimbs as modern birds, so most reconstructions of today are wrong. In particular, this problem is complicated by the presence of long feathers on the arms: if the livin' animal usually kept its "arms" as seen in most reconstructions, the feathers would be in direct contact with the ground, so they could be ruined. It's more plausible that the beast in question held the limbs parallel to the body, so the feathers are preserved. This rule can be applied with Micoraptor as much as any other Maniraptoran (with the exception perhaps of oviraptorosaurs). Technically, this thing is much more complex than that, but this is basically the substance.
B) There is a particular feature in the drawings of Martyniuk. All (or the vast majority) of its dinosaurs have tails tending downwards, something that seems almost unnatural if we compare with those drawn by other artists. The fact is that we forget about a trivial thing, but no less important: this silly little thing is called gravity. It's the same reason that explains why every single vertebrate with a tail on this planet has this vertebral-extension pointing more or less strong to the ground. The tail is in fact, said in a rather profane way, straight only if the animal is using it, but generally maintains a position much more relaxed and at the mercy of gravity. It makes no sense that dinosaurs are fleeing from the law of physics in this way. Of course, dinosaurs used it more than any other vertebrate, but to draw an animal with its tail almost perfectly horizontal, it's for me like to draw an animal constantly on alert. I know, these are little things, but many people do not care.
Ah, one last thing: this Deinonychus has also proto-patagia. Small light that came to reading the book review of Raptors! The nastiest Dinosaurs! on Tricia's blog .

I'm hoping that I didn't say a lot of cr*p XD .
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Comments: 19

raptorman123 [2013-03-21 00:00:07 +0000 UTC]

Oh no! You used the word "crap"!

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E-Smaniotto In reply to raptorman123 [2013-03-21 08:34:36 +0000 UTC]

Oh my, what a bad boy I am

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raptorman123 In reply to E-Smaniotto [2013-03-21 20:41:10 +0000 UTC]

If you couldn't tell from the plz-account avatar included in that comment, that was sarcasm. Why would you censor the word "crap"? It's not the slightest bit profane.

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E-Smaniotto In reply to raptorman123 [2013-03-22 08:58:08 +0000 UTC]

yeah, I knew that. I was just joking .

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TheMorlock [2012-05-02 20:15:20 +0000 UTC]

The arms can't bend? So could they grasp things or reach their mouths?

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E-Smaniotto In reply to TheMorlock [2012-05-03 12:13:30 +0000 UTC]

No, I wasn't clear. They couldn't bend their wrists like modern birds.
For example, bending the arms like in this picture (by Tamura) it's not likely (adn pretty impossible too): [link]
But yeah, they could reach their mouths...I think, I'm not very sure about it either.

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TheMorlock In reply to E-Smaniotto [2012-05-03 17:10:58 +0000 UTC]

Oh, I see. That actually makes sense. I always thought raptors with bent wrists like that looked a little awkward.

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Blitzkriegoperative [2011-09-08 21:36:22 +0000 UTC]

I beleive there was a breed of featherless deinonychus.

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DrScottHartman [2011-06-10 05:03:13 +0000 UTC]

Really nice feel for the muscles, but the base of the tail falls prey to an all too common interpretation of what it means to be able to "flex up at the base". I wrote about this issue actually: [link]

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E-Smaniotto In reply to DrScottHartman [2011-06-10 12:09:52 +0000 UTC]

Thanks for the advise, Scott . I didn't even noticed that, and that post of yours is very helpful.
Still, thanks

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EWilloughby [2011-06-07 20:12:00 +0000 UTC]

Excellent job on the form of the body. I love how you've given it a patagium.

However, I do wonder if the trunk of the body might be too short? GSP's skeletal shows that the elbow and knee would probably not overlap (or would just barely) if rotated. [link]

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E-Smaniotto In reply to EWilloughby [2011-06-08 17:10:29 +0000 UTC]

"Raptors" have very short trunk, and that skeletal of Paul is an excellent example. My Deinonychus seems, well, "shorter" only because I added flesh and muscles; if you do the same thing with that skeletal you linked the results will be very similar.
Also, Paul does skeletals of running dinosaurs, and so the animal is portraited in a very particular movement. Different poses, different views. A sort of "illusionistic" vision if you think about it, but the trunk is always the same. And I know that because this diagram/sketch is based upon a GSP skeletal (maybe the same one linked) .
Well, obviously I could always be wrong after all, but this is my answer for your question.

Oh, and thanks for the compliments

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BrooksLeibee [2011-06-07 18:38:17 +0000 UTC]

Not that much "cr*p" said XD
I love this depiction of a "naked" deinonuchus! The arms are a bit like you'd see on the arms of a chicken or any other bird today really.
Actually everything on the arm seems to be leathered together! The joints, the fingers, everything my eyes can catch!
I love all the thought, and detail you put into this, well done!

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E-Smaniotto In reply to BrooksLeibee [2011-06-08 17:16:46 +0000 UTC]

Well, thank you very much .

Yeah, when I was drawing it, I was just thinking about birds's arms. I think that Deinonychus and other similar coelurosaur had arms more similar to that of a bird than other dinosaurs.
Maniraptorans'arms have a lot of analogies with that of a modern bird like a chicken.
Well, to be true, the arm of the chicken is an arm of a particular type of maniraptoran, so...It's the chicken's arm to be similar to the Deinonychus's arm XD .


Still, thanks for all you said

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BrooksLeibee In reply to E-Smaniotto [2011-06-08 17:37:13 +0000 UTC]

you're entirely welcome!
and could I ask of you as small favor?
Could you look at some of my work and possibly tell me what I'm doing right, and what I'm doing wrong? I mean, I'm working on a game right now, and I need to make some improvements in my work.
I would really appreciate it!

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E-Smaniotto In reply to BrooksLeibee [2011-06-08 17:45:24 +0000 UTC]

Well, the only thing I can say to you it's to try to use skeletals of dinosaurs. On the web, there are a lot of these diagrams that are very helpful. One of the best makers of these skeletals is also on DeviantArt: Scott Hartman. He does very rigorous works and they are excellent for drawing good dinosaurs.
Also try to leave stereotopycal view of dinosaurs, like scaled raptors and stuff like that, and try to read the newest infos of these beasts as much as you can.
And..well, this is all I can say to you. I hope these little "secrets" can help you

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BrooksLeibee In reply to E-Smaniotto [2011-06-08 20:49:02 +0000 UTC]

I already use those "secrets" though...

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E-Smaniotto In reply to BrooksLeibee [2011-06-09 12:02:35 +0000 UTC]

Ahaha, well done !

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BrooksLeibee In reply to E-Smaniotto [2011-06-09 14:55:07 +0000 UTC]

thank you.

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