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Re: Noasaurids (Re: Late Triassic Footprints with Reversed Hallux)
--- Mickey Mortimer <Mickey_Mortimer111@msn.com> wrote:
> Michael Keesey wrote-
> > I was just tying to think of groups with aberrant feet. Maybe it's a
> > misperception, but it seems to me that theropod pedes are pretty uniform
> > except for noasaurids and certain coelurosaurs.
> Just because noasaurids have antiarctometatarsalian
There has got to be a better word for that. What's the opposite of "arcto-"
> metatarsi and hyperextendable second digits doesn't mean they have a greater
> chance of having a reflexed hallux. The characters aren't correlated.
You're most probably right, but in my last feeble defense:
- Perhaps certain groups are inherently more plastic with regard to certain
- The only group known to have reversed halluces (_Avialae_) also appears to
have hyperextendable second pedal digits (at least primitively).
=====> T. Michael Keesey <email@example.com>
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