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Draconian Evolution by Zippo4k Draconian Evolution by Zippo4k
This piece of art shows the evolution of my dragons and their kin, the wurms. The dinosaur and the dimetradon in the background represent the two mass extinctions they needed to have survived in order to reach their current positions, while the small mammal and bird show that they, too, survived the great extinctions, continuing on to become more advanced animals that we see on our own Earth.

I tried to work out the taxonomy as best I could, but if anyone knows of how I could inprove it or fix any mistakes, please tell me!
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:iconwilliam023:
william023 Featured By Owner Jan 27, 2019
Reminds me of the book "flight of dragons." 
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:iconbeto1207:
Beto1207 Featured By Owner Oct 9, 2018
I'm rather wyvern-type dragons fan, but your drawing is very interesting, I liked that your dragon looks quite páctico, without being superfluous or sharp, which makes it look more natural. It just does not convince me that the Wums (and lindworms) descend from the same ancestor that the dragons; I think of it as a member of the Anguidae family or a relative of the ancestors of snakes.
By the way, this artist created a drawing following the same way:
Dragons: Ribs to Wings Evolution Speculation by horse14t
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:iconwilliam023:
william023 Featured By Owner Jan 27, 2019
I used to like wyverns until every. Single. Movie. Now. Has. Fucking. Wyverns. 
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:iconbeto1207:
Beto1207 Featured By Owner Jan 28, 2019
I love wyverns :)
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:icongrisador:
grisador Featured By Owner Feb 9, 2015
This is Epic ! :O

Finally A Picture Shows Dragon Evolution
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:iconzippo4k:
Zippo4k Featured By Owner Feb 12, 2015
This isn't the only (or best) interpretation of how dragons could come to be out there on DA. If you get a chance, look at Hyrotrioskjan's take on dragons as a branch of varanoid lizards: hyrotrioskjan.deviantart.com/
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:icongrisador:
grisador Featured By Owner Feb 13, 2015
I love his Dragon Evolution Tree too !

I like the background in this picture; like Poor (Most) Synapsids and (Most) Dinosaurs can't made it but Dragons evolved like a boss
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:iconzippo4k:
Zippo4k Featured By Owner Feb 15, 2015
Why, thank you. :)
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:icongrisador:
grisador Featured By Owner Feb 16, 2015
You are Welcome ! :D
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:iconvergolophus:
Vergolophus Featured By Owner Oct 14, 2014
Excellent work with the skin flaps! My favorite theorized evolution!
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:iconcultistofvertigo:
cultistofvertigo Featured By Owner Jun 5, 2011
YES! Awesome. I've been saying the same thing for years. Actually, probably since you drew this, looking at the copyright.

hmm... you didn't somehow steal my idea, did you?
/paranoia

You need to show this to the Xenopermian guys. If you haven't already, of course.
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:iconzippo4k:
Zippo4k Featured By Owner Jun 5, 2011
I assure you, I did not take your idea, and I take the matter of plagiarism VERY seriously.
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:iconguyverman:
Guyverman Featured By Owner Sep 6, 2010
Did their wings evolve from the ribcage?
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:iconbabbletrish:
babbletrish Featured By Owner Apr 22, 2010  Professional Traditional Artist
Really cool!
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:iconzippo4k:
Zippo4k Featured By Owner Apr 23, 2010
Thanks! :D
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:iconyoult:
yoult Featured By Owner Apr 21, 2010  Professional General Artist
I know this piece and I can't understand why I didn't faved it earlier!
Such a great job, i love it.
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:iconkuroi-moonwolf:
Kuroi-moonwolf Featured By Owner Apr 20, 2010
Awesome work. The phylogeny is very well thought, although I like dragons as archosaurs more. I suppose it's because of the high metabolic rate and flight pre-adaptation.
But yours explain the origin of their wings amazingly!
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:iconlieju:
Lieju Featured By Owner Mar 18, 2010
So, are the dragon wings actually modified ribs?
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:iconzippo4k:
Zippo4k Featured By Owner Mar 18, 2010
The rods supporting the wings of the ancestral Permian 'lizard' were independent of the ribs (thus, the answer is 'no', I suppose.)
But it could be that the rods formed via out growths of the ribs which would make the answer a 'yes'... I think...
Depends. I based it off of an animal called Coelurosauravus.
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:iconlieju:
Lieju Featured By Owner Mar 18, 2010
I think they originated from the dermis with Coelurosauravus, which also couldn't actually move it's wings, at least not that much. There have also been some discussion whether it could actually fly at all (or if it used ribs as additional support), but I'm not well-informed on this issue.

There lies the big problem with a design like this, with the wings in the back; where are the muscles to move them?

And where they came from? Are they duplicates of forelimbs, or some other modified structures?
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:iconzippo4k:
Zippo4k Featured By Owner Mar 18, 2010
Usable duplication of limbs is not possible, or so every example I have ever seen has shown. If wings appear they must be modified from another structure (such as extensions of pre-existing bones).

I did this piece about the time I joined DA (about five years ago). The animal that gave rise to my "dragons" are completely fictitious, but based on actual animals that really did exist. It would have had to have been similar to animals like Mecistotrachelos apeoros, a Kuehneosaurid, or a Coelurosauravid (perhaps the rods ossified in the dragon's ancestor and articulated at the base? You'd need to be able to fold them up along the body so they wouldn't get torn and catch on obstacles).

Further more, of course it couldn't fly. Only four groups of animals have ever developed powered flight: birds, pterosaurs, bats, and insects.
FOr muscles to attach for the wings, they would have to migrate forwards probably producing a second shoulder girdle. Designing this system became so complicated for me that for the mean time I've given up. I have more plausible and creative things to do with my free time. Not that I don't like my dragons. They're pretty interesting, but it's (a) been done over and over again by different people, and (b) has the problem of flight mechanics.
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:iconamnioticoef:
AmnioticOef Featured By Owner Feb 8, 2012
Developing a second shoulder girdle isn't hard to imagine. Just look at the skeletons of these guys: [link] . I could also see the vertebrae fusing into a site of muscle attachment for a propulsive upstroke on the wings.

I like the intermediates on the way to the wurm...I wonder if Ophidamorpha are able to defend themselves with extrusible ribs, like a certain salamander ( [link] ).
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:iconlieju:
Lieju Featured By Owner Mar 19, 2010
There have been some claims that Coelurosauravus was capable of powered flight (Which I don't find convincing at all), and also some that it couldn't even glide. But I'm not expert on that subject, and I don't think it's even important here.

I was wondering where your dragons get their wings from, though.

Yeah, when it comes to animals like dragons, where nothing quite like it exists or even can exist, there is no way to make them biologically perfectly logical, especially huge dragons.

So there's the choice of either making them more realistic or more dragon-like, and trying to find the right combination of the two.
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:iconzippo4k:
Zippo4k Featured By Owner Mar 20, 2010
Really? I hadn't heard the bit about them actually flying...
Yeah, flight would have been slow to come about.

Wings were (at the time) derived from outgrowths of the ribs.
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:iconfrogillazxx:
FrogillazXx Featured By Owner Jul 11, 2009
And its also interesting to think that they're Diapsids...
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:iconzippo4k:
Zippo4k Featured By Owner Oct 6, 2009
Think maybe they'd be better suited to another group?
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:iconfrogillazxx:
FrogillazXx Featured By Owner Oct 7, 2009
No no :) It suits them alot!
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:iconkitsunekraze900:
Kitsunekraze900 Featured By Owner Jun 29, 2009
Wow! That's really cool. Have you ever seen that mockumentary on animal planet about dragons?
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:iconzippo4k:
Zippo4k Featured By Owner Jun 30, 2009
Yup.
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:iconkitsunekraze900:
Kitsunekraze900 Featured By Owner Jun 30, 2009
That's what your drawing reminded me of XD
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:iconfrogillazxx:
FrogillazXx Featured By Owner May 9, 2009
I love the way you've done this! Its really interestng the way they evolve. (+fav)
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:iconjohnfaa:
JohnFaa Featured By Owner Jun 4, 2008  Student Writer
Nice concept of draconic evolution
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:iconzippo4k:
Zippo4k Featured By Owner Jun 4, 2008
Thank you. :)
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:iconfelipe-elias:
felipe-elias Featured By Owner Dec 21, 2007  Professional General Artist
Great job!!! :clap:
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:iconzippo4k:
Zippo4k Featured By Owner Dec 21, 2007
Thank you, Felipe!:handshake:
I really like this piece also. I should do some more work on this project, sometime.:D
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:iconjacobspencerkaiju79:
JacobSpencerKaiju79 Featured By Owner Oct 14, 2007   Traditional Artist
very cool idea.
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:iconzippo4k:
Zippo4k Featured By Owner Oct 14, 2007
Thanks :D
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:iconjacobspencerkaiju79:
JacobSpencerKaiju79 Featured By Owner Oct 14, 2007   Traditional Artist
Welcome
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:iconara-tun:
Ara-Tun Featured By Owner Oct 12, 2007
Wow! That is a fascinating take on their evolution! I almost did that for my own winged species, but then I pushed it back to fish. There are six-finned fish in the seas, so I went along a 'what if' evolution, and now I'm stuck with drawing their anatomy instead of their evolution.:disbelief: Oh well. I'll get on it, I suppose.
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:iconokavango:
okavango Featured By Owner Sep 22, 2007
i think for the wormy one, make the ancestor's legs eeeeven smaller as they progress. have you ever seen those fat skinks that laze around on branches all day? they are well on their way to becoming legless lizards, since they scoot around on their bellies. their arms are barely visible half the time. so for the legless guy, maybe making the legs even smaller or giving the final guy little stick-legs.

otherwise, gooood job! that flying lizard is awesome!
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:iconzippo4k:
Zippo4k Featured By Owner Sep 22, 2007
Actually there are burrowing skinks that already have lost or are on the verge of loosing their legs.
This piece just shows how much I've changed (sort of) in the months I've been drawing. I (personally) think I've been adding mor detail to pieces. But not all Wurms have lost their legs. Most actually have forelimbs, but no hind limbs.

But i still agree. There are alot of things I could have done a better job on.
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:iconastrocrush:
AstroCrush Featured By Owner Sep 3, 2007
Nice concept, but, huhuhu, why are there dead dinosaurs in the background?? :cry: I :heart: dinosaurs... :(
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:iconzippo4k:
Zippo4k Featured By Owner Sep 4, 2007
The Dimetredon & the T-rex just symbolize the two major extinction events that the dragon's ancestors would have had to endure to make the dragon-based world ('Terrasaurus' I've nicknamed it) possible.
Don't worry. I :heart: dinosaurs, too. :)
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:iconfingertier:
Fingertier Featured By Owner Jul 7, 2007
Amazing! But I think dragon`s ancestor is varanoid lizards...(It`s my concept)
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:iconyaresse:
Yaresse Featured By Owner Jun 10, 2007
Oh my...(hmm now I'm in the right place ^^U)
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:iconmagic-al:
Magic-AL Featured By Owner May 30, 2007
awwwwesomeeeeeeeeee!!!!!!!!!!!!!!!!!!
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:iconfiresprite:
firesprite Featured By Owner Mar 8, 2007
These are great, I love the idea and the way you've layered the various species. Probabl the only thing that stood out to me as something that you could fix would be the anatomy of the legs on some of the smaller, winged species. There are a couple of one where the arms look like different sizes, and the muscles look a bit pillowy.

Very cool! I've had the thing for dragons for a long time, and I did this sort of stuff too. :D
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:iconfiresprite:
firesprite Featured By Owner Mar 8, 2007
Probably^ ones^ Sheez, I can't type this morning...
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:iconrodlox:
Rodlox Featured By Owner Feb 28, 2007
the science works, and the classification is a very nice touch.

bravo.

*looking forwards to seeing more of your fine work*
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:iconcri-angel-of-death:
cri-angel-of-death Featured By Owner Feb 20, 2007
=D Awesome job *faves* I heart dragon art!
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November 14, 2006
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