[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
RE: Tyrannosaur analogs in the south?
> From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu]On Behalf Of
> Richard W. Travsky
> > The Late Cretaceous top predators of Gondwana were the Abelisauridae.
> > Not as big as the tyrannosaurids, nor were they particularly cursorial,
> > but like their distant northern kin they had stumpy arms.
> Would that be a result of common origins or "lifestyle"?
Lifestyle (aka "convergence"), as more primitive tyrannosauroids (_Guanlong_,
for example) and other coelurosaurs and basal
tetanurines have much longer arms than tyrannosaurids.
Thomas R. Holtz, Jr.
Senior Lecturer, Vertebrate Paleontology
Department of Geology Director, Earth, Life & Time Program
University of Maryland College Park Scholars
Building 237, Room 1117
College Park, MD 20742
Phone: 301-405-4084 Email: email@example.com
Fax (Geol): 301-314-9661 Fax (CPS-ELT): 301-405-0796