RE: Ghost Ranch fauna

["R. Irmis" <rbi@dana.ucc.nau.edu>]

Here is a list of fauna from the Rock Point from "Late Triassic Tetrapods
from the Southwest Unitied States" by Long and Murray, 1995 (NMMNH Bulletin
4).

CM = Carnegie Museum, GRMP = Ruth Hall Museum of Paleontology, Ghost Ranch,
NM

Phytosauria:
        Pseudopalatus pristinus
        Redondasaurus gregorii (not in Long and Murray, from Hunt and Lucas 
1993)
        Redondasaurus bermani      "

Rauisuchia:
        Postosuchus kirkpatricki
                CM unnumbered from Coelophysis/Ghost Ranch Block
                GRMP 1007, left illium - I've seen this specimen, and am not 
convinced
that it is a rauisuchian.  The supra-acetabular ridge is developed, but not
more so than in phytosaur illia I have seen.  Furthermore, this is
associated with Hesperosuchus scutes, and since no Hesperosuchus illium is
known, this may very well be from Hesperosuchus.  Im not sure if this is
from the Coelophysis quarry itself.  If anyone is interested, after SVP I
can scan a photo I took of the specimen.

Theropoda:
        Coelophysis bauri - Of course, the main component of the quarry

As stated earlier, Hesperosuchus has since been recognized in the
Coelophysis quarry fauna, and Tracy Ford stated that aetosaurs are also
known from the quarry.  I also forgot to point out that the lungfish
Arganodus sp. is known from the area.

Regards,
Randall Irmis