Re: HOLTZ' THEROPODS

[Tom Holtz <tholtz@geochange.er.usgs.gov>]

>Ah, so you're talking about your arctometatarsalian pes, eh Tom?

But of course.

>I was gonna leave all this stuff till later, but I might as well deal with it
>now: can anybody give me any refs. or new info. on the following theropods;
>
>1) Edmarka rex (restoration by Ortega appears in 'The Dinosaur Rennaisance',
>which is in Brittanica Science and Tech. yr.bk. for 1993, other than that I
>have no info.)

BAKKER, R.T., KRALIS, D., SIEGWARTH, J., and FILLA, J.  1993.  Edmarka
rex, a new, gigantic theropod dinosaur from the Middle Morrison Formation,
Late Jurassic of the Como Bluff outcrop, with comments on the evolution of
the chest region and shoulder in theropods and birds and a discussion of
the five cycles of origin and extinction among giant dinosaurian predators.
Hunteria, 2(9), 1-24.

Edmarka rex (should be "regina", to keep the genders correct) is a
torvosaurine megalosaur.  Not all the type and refered material is
restored.  I am not convinced that it is a different taxon from
Torvosaurus, since some of the differences in the jugal could either be
post-depositional distortion and/or individual variation.

(BTW, Bakker's trend of ignoring almost everywhere but North America and
Asia continues in this paper.  The abelisaurids do not get recognized as a
"cycle of origin and extinction among giant dinosaurian predators", but at
least the spinosaurids, Bahariasaurus, and Carcharodontosaurus do!)

>2) New 'pygmy Coelophysis' found in Nova Scotia 1993-4 (mentioned in 'Ultimate
>Dinosaur Book' by D. Lambert)

Haven't seen it published yet.  Expect it could just be a juvenile.

>3) A big theropod found at the Utahraptor site (and one that isn't Utahraptor,
>so don't try and be funny..)

Also, the big theropod from the Cloverly - nothing new on either of them.

>4) The new, GIANT South American theropod  - bigger than Sue!

Later this year (hopefully).  It is indeed quite large.

                                
Thomas R. Holtz, Jr.                                   
tholtz@geochange.er.usgs.gov
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
U.S.A.