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November 23, 2012
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Pelican mimic by Durbed Pelican mimic by Durbed
A Pelecanimimus polyodon flees from an ambushing Concavenator corcovatus in the Cretaceous plains of Las Hoyas, Spain.

Pelecanimimus is almost a unique ornithomimid due to several of its features: the crest, the row of diminute teeth and the most recent theory/speculation, some ontological adaptations only present in dinosaurs able to fly -including aves- (quoting M. Mortimer : "large paired sterna with ossified ribs and possibly uncinates"). The animals morphology and size tell us that it being able to show powered flight is a bit unlikely, though. What this apparent adaptations means (flying ancestry in ornithomimosaurs that eventually became completely cursorial?), is up to anyones imagination. Maybe not even that since more recent discoveries suggest a bit different wing structure in primitive birds and/or birdlike dinosaurs like Archaeopteryx and Anchiornis -> [link] .
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:iconpappasaurus:
Pappasaurus Featured By Owner Mar 7, 2014  Hobbyist Artist
Wow! That Pelicanimimus was becoming lunch for the Concavenator. That's an awesome hunting scene.:D (Big Grin) 
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:iconpseudonoobda:
PseudonoobDA Featured By Owner Mar 6, 2014  Student Digital Artist
I wonder why Concavenator has a projection on the top of its hip.
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:iconjonagold2000:
JonaGold2000 Featured By Owner Feb 4, 2014  Hobbyist
it looks like the Concavenator is jumping, LOVE IT!!
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:icongigantala:
gigantala Featured By Owner Nov 29, 2012
We know little about Pelecanimimus' actual proportions, so flight could still had been possible.

Also, the suggestion that the wings of Anchiornis and Archaeopteryx were poorly suited for flight seems to just be that, a suggestion. I'm not aware of any aerodynamic studies.
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:iconhoatziraptor:
Hoatziraptor Featured By Owner Nov 24, 2012
Felicitaciones por tu dibujo, ese concavenator esta bestial :)
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:iconshinreddear:
ShinRedDear Featured By Owner Nov 23, 2012
Pelecanimimus is really stealing this scene ! :D Wonderful details on the head, accurate soft tissues and great energy.
Concavenator seems a bit baffled in comparison but I like it's jumping position (reminds me of Charles Knight). Really good job, one of your best ! ;)
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:icondurbed:
Durbed Featured By Owner Nov 24, 2012
Thank you very much!
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:iconwynterhawke07:
Wynterhawke07 Featured By Owner Nov 23, 2012  Hobbyist Writer
isn't it thought that Concavenator had protofeathers on its arms?
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:icondurbed:
Durbed Featured By Owner Nov 24, 2012
That's what it was thought, but further studies revealed that those quills are actually muscle fibers. So there's no solid evidence of quills or any form of feathers in carcharodontosaurs so far.
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:iconwynterhawke07:
Wynterhawke07 Featured By Owner Nov 24, 2012  Hobbyist Writer
You're referring to Darren Naish's response to Francisco Ortega's team's speculation it had protofeathers, right?
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