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Re: Re: Flightly PaleoWorld



>In a message dated 95-11-21 01:49:47 EST, GSP1954@aol.com writes:
>
>>Martin also said that theropods like Deinonychus were too deep bodied and
>big
>>to climb, and lacked a reversable toe to grasp branches with. Tell that to a
>>leopard, which is as big as the dromaeosaur, deep bodied, and has no hallux
>>at all! Chimps are also big and they hunt monkeys in the trees! Of course,
>>Martin's assertion was irrelevant arm waving. The theropods ancestoral to
>>birds were probably wee little Jurassic forms.  
>
>The idea of Deinonychus-size theropods climbing into trees and thereby
>evolving the ability to fly is not just wrong, it's ludicrous.

Perhaps, but the idea that the common ancestor of dromaeosaurids and birds
was a small scansorial theropod, some of whom's descendants evolved the
ability to fly, is not only far from ludicrous, it is better supported
than the theory that small feathered protobirds lived in vast numbers in the
Triassic or earlier :-)

Thomas R. Holtz, Jr.
Vertebrate Paleontologist
Dept. of Geology
University of Maryland
College Park, MD  20742
Email:Thomas_R_HOLTZ@umail.umd.edu (th81)
Fax: 301-314-9661
Phone:301-405-4084