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Re: T-rex arms

>T-rex arms have the same function that mononykid arms had, grappling mates.

The proper name for the family containing Mononykus is Alvarezsauridae
Bonaparte 1991 (or was it 1990?).  This family contains Mononykus olecranus,
Alvarezsaurus cattoi (or whatever the trivial nomen was), another Argentine
form to be named Patagonykus puerti, and (possibly) "Ornithomimus" minutus.

> They are good only in close proximity, they are very strong and (hopefully)
>they do not puncture.  

H.F. Osborn would agree with you!

Thomas R. Holtz, Jr.
Vertebrate Paleontologist
Dept. of Geology
University of Maryland
College Park, MD  20742
Email:Thomas_R_HOLTZ@umail.umd.edu (th81)
Fax: 301-314-9661