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Re: Air sacs in extant non-avian reptiles?



In a message dated 7/31/00 10:25:09 AM, tholtz@geol.umd.edu writes:

<< Did you not happen to catch the line in the posting you quote which read:
"a shift in the convention of naming groups, with a traditional system based
on grades of organization and the current system based on nested pattern of
ancestry."

When you come to understand the change in this shift, you'll figure this
out. >>

Of course I do, a group of palentoligists who wished very much that dinosaurs 
were still alive decided that the best way to do so was to downgrade birds 
from something unique and beautiful into tiny T-rexes. Since dinos are 
repties, then birds, which are an unimportant group of dinosaurs who just 
managed to survive to the present day, must be too. While most biologists 
don't accept that, a few palentologists do, and most of them post here.

eric l.