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Pneumaticity



On 4/18, Brian Curtice wrote:

        >Does Eoraptor or Herrerasaurus display pneumatic dorsal and/or
        >cervical vertebrae?

        Pneumatic vertebrae do not seem to be present in either genus
(Novas, 1993; Sereno et al 1993); however, the herrerasaurid
_Chindesaurus bryansmalli_ does possess pleurocoels in the dorsal
vertebrae (Long & Murry, 1995).

REFERENCES
        Novas, F.E. (1993).  New information on the systematics and 
postcranial skeleton of Herrerasaurus ischigualastensis (Theropoda:
Herrerasauridae) from the Ischigualasto Formation (Upper Triassic) of
Argentina.  Journal of Vertebrate Paleontology, 13 (4), 400-423.
        Sereno, P.C., Forster, C.A., Rogers, R.R., & Monetta, A.F.
(1993).  Primitive dinosaur skeleton from Argentina and the early evolution
of Dinosauria.  Nature, 361, 64-66.
        Long, R.A., & Murry, P.A. (1995).  Late Triassic (Carnian & Norian)
tetrapods from the southwestern United States.  New Mexico Museum of 
Natural History and Science Bulletin 4, Albuquerque.

Guy Leahy
n9435712@henson.cc.wwu.edu
Dept. of PEHR
Western Washington University
Bellingham, WA 98225