[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
RE: Triassic protofeathers and fake-heads
Rob Gay wrote:
>But I think once again the fact that the large majority of
>animals (in this case, herbivores) were non-dinosaurian would lead one
>to the conclusion that therapsids, and non-dinosaurian archosaurs were >the
main prey items of said dinosaurs.
Or rhynchosaurs. Or arthropods (as Ken noted). I guess my comments were in
reply to the assertion that "the predators of the first dinosaurs weren't
dinosaurs anyway" when there is abundant evidence to the contrary. The
Dinosauria already included several predatory guilds by the Norian.
>When we're talking about predator/prey relationships in the Triassic, it
>is very important to remember that with very few exceptions, were
>dinosaurs a majority, or even a large minority, of the ecosystem.
Agreed.
Tim
------------------------------------------------------------
Timothy J. Williams
USDA-ARS Researcher
Agronomy Hall
Iowa State University
Ames IA 50014
Phone: 515 294 9233
Fax: 515 294 3163