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Re: Rioarribasaurus vs. Coelophysis

>Speaking of the name controversy, what *is* the current "paleontologically
>correct" nomenclature for this dino? I'm compiling a dinosaur manual for the
>American Museum of Natural History (it's intended for school groups and the
>like) and have no idea which name to list it under. I'm on the verge of just
>duplicating the sketch and profile under both names...=P (Unfortunately, I
>can't say "Rioarribasaurus -- see Coelophysis" (or vice versa) because the
>booklet has to be comprised of individual pages for kids who write in asking
>about one particular animal)

The currently proper name is *not settled*.  The case is yet to be
resolved.  If you need a name before the ICZN rules on the case, I suggest
that you ask Mark Norell (as the AMNH's dinosaur person) for his opinion on
the subject.

>Say, I'd appreciate it if anyone has any suggestions here -- I've tried to do
>a sketch/profile for each of the more popular and commonly asked-about
>species. If anyone can think of animals that I've missed but should really
>include, though, I'd appreciate any suggestions. So far, I have: Allosaurus,
>Apatosaurus, Baryonyx, Brachiosaurus, Coelophysis/Rioarribasaurus,
>Deinonychus, Dilophosaurus, Gallimimus, Oviraptor, Parasaurolophus,
>Protoceratops, Stegosaurus, Triceratops, Tyrannosaurus, Utahraptor, and
>Velociraptor. Possibles include Pachycephalosaurus and Ankylosaurus.
>Oh, one last query -- I know that Struthiomimus is believed to have been
>toothless, but did Gallimimus, for whom a more complete skull exists, have
>any teeth? I presume not, but I've found no reference to their presence or
>lack thus far...

Yes, all true members of the Ornithomimidae (Archaeornithomimus,
Anserimimus, Dromiceiomimus, Garudimimus, Ornithomimus, and Stuthiomimus)
are toothless.

Good luck with your book.

Thomas R. Holtz, Jr.                                   
Vertebrate Paleontologist in Exile                  Phone:      703-648-5280
U.S. Geological Survey                                FAX:      703-648-5420
Branch of Paleontology & Stratigraphy
MS 970 National Center
Reston, VA  22092