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Re: Greg Paul is right (again); or "Archie's not a birdy"
Thomas R. Holtz, Jr. <firstname.lastname@example.org> wrote:
> An interesting aspect of this study is that by moving pointy-snouted
> Archaeopteryx (and Anchiornis, and Xiaotingia) over with pointy-snouted
> deinonychosaurs, the morphological sequence of nodes up to the base of
> Avialae and into birds is much more blunt-snouted. Following Zanno &
> Makovicky's recent ecomorphological work, it suggests that basal birds may
> have been primarily non-carnivorous (that is, omnivorous or something in
> that spectrum), like oviraptorosaurs and such.
So much for the name "Maniraptora".
This revised sequence of character acquisition also casts severe doubt
on the 'predatory stroke' being ancestral to the avian flight stroke.
Coincidentally, among mammals aerial gliding has evolved exclusively