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Re: Triassic birds
>The problem with the interesting and not yet disproven (and very hard to disp
>rove) idea that birds arose in the Triassic, is the lack of any avian
>skeletons or shed feathers
Exactly. "Longisquama" and "Protoavis" cannot be counted as avian remains
until a detailed description is published. Unprepared specimens don't
really belong in cladograms, or phylogenies.
>early birds were starting to fly over, fall into, and shed feathers onto,
>water at this time, for the first time.
It only shows that avians were there. The behavior involved is not
preserved in the fossil record.
>Unless positively identifiable
>bird remains start showing up in the Triassic-Jurassic, the
>Chatterjee-Olshevsky hypothesis is speculative.
Right on! Now we're getting somewhere!
John R. Hutchinson
Evolving Evolutionary Biologist
Department of Integrative Biology
3060 Valley Life Sciences Bldg
University of California - Berkeley
Berkeley, CA 94720