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RE: Cretaceous taeniodont
One thing that seems to be driving this assumption was that mammals were in
competition against dinosaurs BUT nothing else. This doesn't accurately
reflect the Mesozoic, particularly at the scale of mammals involved. Other
taxa need to be recognized here: sphenodontians (in the early Mesozoic),
lizards (in the later Mesozoic), and various crocodyliforms throughout.
Many of these may have been direct mammal competitors; others were potential
Just some (hopefully helpful) thoughts.
Thomas R. Holtz, Jr.
Department of Geology Director, Earth, Life & Time Program
University of Maryland College Park Scholars
College Park, MD 20742
Phone: 301-405-4084 Email: firstname.lastname@example.org
Fax (Geol): 301-314-9661 Fax (CPS-ELT): 301-405-0796