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January 20, 2013
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Nesting holes by Hyrotrioskjan Nesting holes by Hyrotrioskjan
Is it possible that non-avian dinosaurs nest in small self-dug, or captured caves? and if yes, what species would be suitable for this behavior?
These were the questions which grew into my mind when I thought about nest forms.
I finally choose Epidexipteryx. Why?
Let's begin with the enviroment of E. hui. The specimen was found in china, inner mongolia, within the Daohugou beds which are between 168 and 152 million years old. It was a wet ecosystem with lakes and streams, it was the home of the first known aquatic mammel, Castorocauda, which was maybe also a digging animal.
Vulcanic ashes are known from the fossil beds, a material which may form huge river banks and small canyons, here a example: [link] a enviroment.
Epidenxipteryx may used such walls to build it's own holes. The animal is really small (25 cm without the tailfeahters) and light (160 g). The long fingers and possible presence of grasping claws, like Epidendrosaurs (I would have chosen this species, but we just know juveniles), make a climbing lifestyle practicable. The teeth are not visible here because I cover them with lips (inspired by Quilongs Masiakasaurus ;)) but they were huge for a animal of this size and may help to dig into the clay of the cliff. In addition a short tail, like found at Epidenxipteryx, could be usefull; even if I have reconstructed the animal here with the iconic four tail feathers it's possible that these were just seasonal phenomenons which disappear after mating.

I have this drawing since two weeks but until now I find no way to bring it in a digital form (it's larger than the other pics for the All Yesterdays contest).
But it fits better now, after submitting the nesting pterosaurs and because of this Cryolophosaurus which arrive today on DA: [link]
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:iconsaurophagus:
Saurophagus Featured By Owner Sep 5, 2013  Hobbyist General Artist
One time I was on a dock thing and lost my bag of Cheetos in the water. There was a small ledge just above the ocean so I climbed down the structure holding the dock up and finally reached the ledge and walked out on it, moving to a pillar. As I reached for the Cheetos I noticed there was a lot of chirping coming from a hole near my head so I leaned down and looked in it only to be attacked by a freaking bird. It pecked the crap out of my face and I fell in the water. Something bumped my leg in the deep water after I almost got stuck in the seaweed which is why I hate the ocean and docks around it. I fear the ocean because of birds.
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:iconhyrotrioskjan:
Hyrotrioskjan Featured By Owner Sep 7, 2013  Professional General Artist
Ah yes, never underestimate the protective instinct of a bird :nod:
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:iconkaijukid23:
Kaijukid23 Featured By Owner Jul 30, 2013
Wandering about how Dinos live will never end for us. We will never know the truth unless we see it
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:iconhyrotrioskjan:
Hyrotrioskjan Featured By Owner Aug 6, 2013  Professional General Artist
:nod:
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:iconkaijukid23:
Kaijukid23 Featured By Owner Aug 6, 2013
And i somehow start wondering if Dinosaurs did not roar, much like their modern cousins, but instead growl or hiss, except during mating season
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:icondalaimalai123:
DALAIMALAI123 Featured By Owner Jul 12, 2013
I find it quite logical.
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:iconhyrotrioskjan:
Hyrotrioskjan Featured By Owner Jul 16, 2013  Professional General Artist
Thanks :bow:
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:icondalaimalai123:
DALAIMALAI123 Featured By Owner Jul 19, 2013
No, thank YOU. It those people like you who work so hard in trying to find dinosaurs that might have behaved similar to modern animals. :)
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:iconhyrotrioskjan:
Hyrotrioskjan Featured By Owner Jul 23, 2013  Professional General Artist
Thank you so much :hug: =D
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:icondalaimalai123:
DALAIMALAI123 Featured By Owner Jul 26, 2013
Oh, alright. You're wlecome! ^_^
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