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Re: Mesozoic gliding mammal
----- Original Message -----
As I read the paper, the current count is that the general morphology of
gliding patagium stretched between the fore and hind legs and with no
internal skeletal support has evolved at least nine separate times in
various mammal(-iform) lineages: the new beastie, the presumed but so-far
undiscovered ancestor of bats,
Since bat patagia have an internal skeletal support (the fingers), isn't
it likely that their ancestor did also?
Isn't it also possible that a fore/hindlimb gliding patagium in bat
ancestors simply migrated further up the forelimb, with webbing later
forming between the digits and eventually fusing with the original patagium?
GIS / Archaeologist http://www.geocities.com/dannsdinosaurs
Melbourne, Australia http://heretichides.soffiles.com