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Re: Triassic dinosaur evolution
Then could someone please pass this on to all the paleo artists out
there? I've grown so tired of seeing drawings of theropods with
completely serviceable forelimbs, just tucking them away like they
were just featherless, non-functional wings.
Fair enough, but what counts as "serviceable"? If you're thinking of
maniraptorans, then I absolutely agree. However, there is a strange
pattern that many (if not most) non-maniraptoran theropods with robust
forelimbs still can't reach out in front of their mouths, making the
forelimbs rather unavailable in prey capture. Allosaurids, for
example, have robust, powerful arms - but the length is still quite
short in comparison to the total length of the cervical series and
head, so the jaws would contact food well before the arms ever got
close. That doesn't make the forelimbs useless, but it appears to make
them rather unimportant for prey acquisition.
Michael Habib, M.S.
Center for Functional Anatomy and Evolution
Johns Hopkins School of Medicine
1830 E. Monument Street
Baltimore, MD 21205
(443) 280 0181