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Re: polarity of bipedality in dinosaurs

In a message dated 96-09-30 14:10:48 EDT, meyersrt@uwec.edu (Rob Meyerson)

> Close, but no soup for you.  In birds, the whole hand has been fused
> together (with the exception of the first digit) through wing
> development.  Pterosaurs, OTOH, do support their wing with one
> finger.

I think what Stan was referring to here is that digits IV and V (or I and V
if you're an ornithologist) were lost before digits II and III (or III and
IV) grew together.