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RE: Phylogeny of Maniraptora

Ralph W. Miller II <dinoguyralph@sbcglobal.net> wrote:

I don't know.  If you were _Microraptor gui_ back in the Early Cretaceous,
how would you propose locomoting with your feathered appendages?

Three ways:

(1) Running (hindlimbs + tail) - i.e. the old-fashioned way, on terra firma.

(2) Climbing trees (forelimbs + hindlimbs) - Branch-clambering or trunk-climbing, take your pick.

(3) Aerial gliding (forelimbs + hindlimbs + tail). If the femur was capable of enhanced adduction/abduction upon the primitive theropod condition, then the "hindwing" may have formed a coplanar surface with the "forewing".

All in all, _Microraptor_ and its kin were very versatile little critters.


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