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Kulindadromeus by EWilloughby Kulindadromeus by EWilloughby

Kulindadromeus was a basal neornithischian dinosaur from the middle to late Jurassic of Russia. Its several specimens exhibit beautifully-preserved feather-like integument, indicating that in life, this animal was covered in several types of shaggy, filamentous feathers, including a branching type not unlike the stage 3 feathers known from theropods. This beautiful little animal was a meter-and-a-half long bipedal runner that was probably on the menu of other, larger feathered dinosaurs.

Kulindadromeus is important to our understanding of the evolution of feathers in dinosaurs because it's the clearest evidence we have yet that feather-like structures in non-theropod archosaurs are most probably homologous to those found in theropods, including birds, and that this means the origin of feathers may have been much further back in deep time than previously thought.

Along with Zanabazar and the standoff between Archaeopteryx and Aurornis, this illustration was recently published in the 7 December 2014 issue of Nature.

Gouache on artboard, approximately 8" by 12". Original is for sale on my Etsy shop!

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:iconcharlott-a:
Charlott-A Featured By Owner Oct 30, 2018  Student Traditional Artist
It’s both beautiful and cute at the same time, I absolutely love your work
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:icontigris115:
tigris115 Featured By Owner May 31, 2018
On average, how long does one of these take?
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:iconantonellisofbbender:
AntonellisofbBender Featured By Owner Aug 31, 2017  Student Filmographer
WOW
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:iconthatdude450au:
Thatdude450AU Featured By Owner Aug 4, 2015  Student General Artist
perfect i wish these were still here today the just look so birdlike which is understandable due to bird evolving from avian dinosaurs
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:icondiebruder:
diebruder Featured By Owner Aug 1, 2015  Hobbyist Digital Artist
que extraño y curioso animal
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:iconterizinosaurus:
Terizinosaurus Featured By Owner Jul 19, 2015
it is fantastic job !:)
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:icongrisador:
grisador Featured By Owner Jul 13, 2015
İts tail looks so similiar to Rats; very similiar
Reply
:icondragonosaurus-rex:
DragonoSaurus-Rex Featured By Owner May 8, 2015  Student General Artist
coolz
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:icongogosardina:
Gogosardina Featured By Owner May 4, 2015  Professional Traditional Artist
Gaaa.. this is so much more pleasing that the reconstruction in the actual paper.
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:iconorange-eyed-serpent:
orange-eyed-serpent Featured By Owner Feb 27, 2015  Hobbyist General Artist
Actually Emily, nevermind my previous critique on the fluffiness of the limbs. I had a discussion with Tomozaurus about this, and even though the authors consider the possibility that the ones on the humerus could be feathers arising out of scales, it doesn't seem very likely IMO anymore considering that they'd just be on the humerus and nowhere else. Probably just an artifact of preservation:
tomozaurus.deviantart.com/art/…

It looks adorable and I love how you've depicted it. :D
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:iconprocyonnoumer:
ProcyonNoumer Featured By Owner Dec 30, 2014
I for one am very glad the specimen had most of it tail base preserved decently
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:iconadamantvis:
adamantVis Featured By Owner Dec 20, 2014  Hobbyist Digital Artist
That tail is super cool :o
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:iconherofan135:
herofan135 Featured By Owner Dec 19, 2014  Hobbyist Traditional Artist
Love the feathers here, looks cool!
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:iconasazieagle:
asazieagle Featured By Owner Dec 18, 2014  Hobbyist Photographer
This dino got me to research dinosaurs more than I have in over a decade trying to figure out where it fits in. I have to say I have been out of the loop for soooooooo long, I was very confused at first.
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:iconimpirrenryry:
ImpirrenRyRy Featured By Owner Jul 29, 2015
I'm sure you some ideas about feathered raptors XD
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:icondinobirdman:
DinoBirdMan Featured By Owner Dec 17, 2014  Student Artist
I'm really like that feathered critter.:)
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:icontraheripteryx:
Traheripteryx Featured By Owner Dec 17, 2014  Hobbyist General Artist
Finally here on dA! :D
As I already said: Very floofey and cute and nice to see an Ornithischian from you! :)
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:icontarturus:
Tarturus Featured By Owner Dec 16, 2014  Hobbyist Digital Artist
Good portrayal. :thumbsup:
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:iconlevibernardo13:
LeviBernardo13 Featured By Owner Edited Dec 16, 2014  Student Traditional Artist
wow expecting a picture of this kind of you. very perfect. thank you
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:iconprocrastinatingstill:
I think it's a bit too early to conclude that the structures on Kulindadromeus are protofeathers. Multiple filaments emerging from a single base plate are not found in any hypothetical feather morphology. 

On an interesting sidenote there were actually two teams working at Kulinda Valley.  Their descriptions of Kulindadromeus' filaments aren't consistent with each other.

Anyway, this is another lovely drawing from you.
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:iconeriorguez:
Eriorguez Featured By Owner Edited Dec 18, 2014
You mean the team that stole research and tried to pass it as their own? Yeah, utterly trustworthy scientific practice...

Also, denial is not just a river in Egypt.
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:iconprocrastinatingstill:
Oh and don't accuse me of denial. You're jumping on a bandwagon uncritically. 

Science is about questioning data, not appealing to authority. Questioning data is not denial. It's SCIENCE.
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:icondurbed:
Durbed Featured By Owner Dec 19, 2014  Hobbyist Digital Artist
Well. Questioning data without any kind of contrasted evidence in hand isn't really science at all.
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:iconprocrastinatingstill:
Science is about interpreting the available data. Godefroit et al. saw feathers on Kulindadromeus. On the other hand, I do not. "Jura" doesn't either. He made a pretty strong case for why the structures on Kulindadromeus aren't feathers. reptilis.net/2014/07/31/new-si…
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:icondurbed:
Durbed Featured By Owner Edited Dec 19, 2014  Hobbyist Digital Artist
Hardly a credible source. The author seems to be obviously pushing his own agenda for a more scaly/reptilian conservative kind of non coelurosaurian dinosaur clades. Besides, we need at least one peer reviewed paper supporting the hypothesis if we are to take it into consideration.
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:iconprocrastinatingstill:
I don't entirely agree with him on somethings (Yutyrannus not being a Tyrannosaur). But he does make a valid point on one count. If the structures on Kulindadromeus are feathers, that would mean that we would have to ignore every single evolutionary development study on feathers

Also "agenda"? He's not some scaly-dino fanboy. He provides some numerous credible sources. Also on his "T. Rex-was-scaly" thing he doesn't even use the "It's-big-so-it would-overheat" argument (Again I don't agree with him there).

Scroll down to the relevent discussion on T. Rex. It's pretty interesting even though I don't agree with him.  reptilis.net/2012/07/23/feathe…  Look thoroughly on someone's webpage before you make judgements.
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:iconprocrastinatingstill:
Read that link I gave you of the two teams. We have another Aetogate on our hands.

Why shouldn't I be skeptical? Godefroit et al. didn't provide strong evidence for homology.
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:icondurbed:
Durbed Featured By Owner Edited Dec 16, 2014  Hobbyist Digital Artist
"Multiple filaments emerging from a single base plate are not found in any hypothetical feather morphology. "

Perhaps its time to expand or redefine our definition of feathers, then?

Since feathers originated in Dinosauria and we are still trying to understand the whole evolutive process with new findings like these, I think there's room for a bit of flexibility.  And if those are not to be called feathers I dont know what else they could be. Certainly not anything close to pterosaurian fur.
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:iconprocrastinatingstill:
Protofeathers and feathers do NOT emerge from a base plate.

Developing a unique type of filament actually isn't hard from an evolutionary perspective. Plants and insects have done it.

Furthermore I think as of now, the evidence shows that feathers emerged in Coelurosauria or a close relative of that group. 

I am planning on making a diagram about the integument of Ornithodira that shows the known type of integument of certain clades and their placement on the family tree.
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:iconijreid:
ijreid Featured By Owner Dec 30, 2014  Hobbyist Digital Artist
Why not? I've read in some paper that crocodilian scales are very similar genetically to avian feathers, does that not mean that modified scales could grow feathers? I will list of some of the main groups which possess feathers: Maniraptora, Ornithomimosauria, Tyrannosauroidea, Compsognathidae, Juravenator, Sciurimimus, Psittacosaurus, Tianyulong, Kulindadromeus. If I recall, "Jura" mentioned that he thought Kulinda and Tianyu were closely related, well, they practically have the reverse tail integument. I don't see anyone saying that Tianyu's tail feathers were scales, yet if it was closest to Kulinda that shows that (1) feathers evolve quickly from scales, (2) scales evolve quickly from feathers, or (3) feathers and scales are very similar genetically and only slight modification is required so they're more interchangable than thought
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:icontheomnivore:
TheOmnivore Featured By Owner Jan 6, 2015
If I remember correctly, a recent study (2012 or so) on the genome of crocodiles even found that it contains all the necessary code to make feathers.
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:iconyutyrannus:
Yutyrannus Featured By Owner Jan 18, 2015  Hobbyist Traditional Artist
Yes, that is correct.
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:iconthat--ginger--kid:
That--Ginger--Kid Featured By Owner Dec 16, 2014  Student Photographer
Oh my gosh, its tiny little forelimbs!!! They're so tiny..! :D
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:iconlevibernardo13:
LeviBernardo13 Featured By Owner Edited Dec 16, 2014  Student Traditional Artist
true
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