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Re: birds are reptiles?!
>So what exactly is a reptile? Phylogentically, either nothing, or all
>amniotes. So reptile = amniote. Of the two words, the latter is far
>more precise in definition and usage. So can we please forget the former,
>or at least remember it as an old but inaccurate (phylogenetically speaking)
>description of some amniotic tetrapods, and not use it in day to day
>parlance amongst people who understand perfectly well what an amniote is?
In Gauthier's terms:
Reptilia = the most recent common ancestor of turtles, lepidosaurs, and
archosaurs, and all of that ancestor's descendants.
If mammals are closer to diapsids (lepidosaurs and archosaurs), than
Amniota = Reptilia.
If mammals are outside of a diapsid-turtle clade, than Amniota contains
Thomas R. Holtz, Jr. Phone: 703-648-5280
Vertebrate Paleontologist Fax: 703-648-5420
firstname.lastname@example.org ------------> email@example.com
U.S. Geological Survey -------------> University of Maryland
Branch of Paleontology & Stratigraphy ----> Department of Geology
MS 970 National Center
Reston, VA 22092 -------------> College Park, MD 20742