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Re: Flightly PaleoWorld
In a message dated 95-11-21 14:47:47 EST, Thomas_R_HOLTZ@umail.umd.edu (th81)
> A globally distributed
>Longisquama is certainly a strong possibility, but a highly diverse
>assemblage of such critters will need more fossils for support.
_Longisquama_ was probably confined to the trees of central Russia. But
longisquamatids may have had a much wider Asian distribution, and
basitheropods even wider than that.
It's a situation similar to that with _Archaeopteryx_. One taxon from one
locality: proto-birds were restricted. Then along came _Confuciusornis_. Two
taxa from two localities: proto-birds were everywhere, but of course! How
stupid not to have realized it earlier!
(The fun part is that the dating for _Confuciusornis_ may be way off--it may
well be Early Cretaceous and not Late Jurassic after all.)