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Lauren Helton ([personal profile] dino_a_day) wrote2014-06-11 04:39 pm
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Concavenator - Sail - Day 33



Concavenator corcovatus is a carcharodontosaur, one of several medium-to-large carnivores from Cretaceous Southern Europe. Discovered in Spain in 2010, it is the only known carnosaur with a sail on its back. This sail is unlike those of the early synapsid Dimetrodon, or the spinosaurs, in that rather than being tall and thin, it was low and likely wide at the base - possibly for display, possibly for fat storage such as in today's camels, or potentially for both purposes.

Concavenator also has large bumps on its forearm bones that appear to be quill knobs, and skin impressions show that its body was covered in large alligator-like scales.
needled_ink_1975: A snarling cougar; colored pencil on paper (Default)

[personal profile] needled_ink_1975 2014-06-12 10:44 pm (UTC)(link)
Now I'm wondering if the quills on his arms were there for decoration, or if they had a use. Usually spikes and plates were for defense, but in that case they were on heads, backs, and tails (all of the above for Ankylosaurus).

If those quills on Concavenator's arms weren't there for decoration and display, what might they have been used for? (If he'd been a herbivore, I could see them as being handy for gathering plant material before chomping it)

–Nici