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Re: What is a Dinosaur? and semilunate carpal





Matt Bonnan wrote:

The forearms of crocodilians and most lepidosaurs are rigidly constructed.
The radius and ulna articulate proximally and distally like part and
counterpart pieces.  The radius does not have a rounded radial head; the
head of the radius is usually angular, and it is physically impossible to
move the radius about the ulna as we can do in our own forearms.

You said "most lepidosaurs". Does this condition pertain to tree-climbing lepidosaurs too?


Cheers

Tim



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