RE: Things To Look Forward To - SVP 2005 (Mesa, Arizona, USA) - Part 2

[Tim Williams <twilliams_alpha@hotmail.com>]

Jaime A. Headden wrote:

> They also present on more *Revueltosaurus*-like skeletons from the
> Chinle Formation (Blue Mesa Member) of Arizona, USA, and Pekin Formation 
> (North
> Carolina, USA) imply a greater distribution of such fossils.

This makes sense: "ornithischian" teeth have been descibed from both the 
Chinle Formation (_Revueltosaurus_) and the Pekin Formation 
(_Pekinosaurus_).

> *Protoavis* appears to have the femur, astragalus and calcaneum of a 
> coelophysoid,

If (as seems likely) _Protoavis_ is a chimera, which element(s) get to keep 
the name _Protoavis_?  In other words, what is the name-bearing element?  My 
guess is that the holotype (or lectotype) would be a cranial element, in 
which case _Protoavis_ would probably be non-dinosaurian.

> Thus the implication is that all Late Triassic saurischians from North
> America are coelophysoids.

Even _Chindesaurus_ is a coelophysoid?

Thanks for the summaries, Jaime.  And you're right - goblin sharks are 
fascinating.

Cheers

Tim