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RE: Dino/bird amphibians
> From: email@example.com [mailto:firstname.lastname@example.org]On Behalf Of
> Harri Hirvelä
> Thinking about the birds and their feathery dinosaur forefathers, have
> any one ever found or suspected to find, an amphibian dinosaur that
> would have been living in the same ecological niche like the amphibian
> birds of today? If so, which fossil? If not, why not?
Ichthyornis seems to have been comparable to modern gulls: a land-dwelling bird
that fed in marine units.
Both Longipteryx and Longirostravis are probable fresh-water birds: one with a
beak adapted to probing for small invertebrates in
the mud, the other a possible fish-catcher.
On the big scale, I and others have suggested before that the ecology of
spinosaurid dinosaurs is something like a heron, only on a
MUCH bigger scale.
Thomas R. Holtz, Jr.
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