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Re: PRE-OLSHEVSKY BCF
Matthew Troutman writes:
>"Othenio Abel (1911) agreed that birds and theropods possessed important
>similiarities and was among those who argued for a common ancestry. For
>Abel, however, this common ancestor was an arboreal animal. The avian
>descendents of this ancestor simply remained in the trees, whereas the
>theropods became secondarily terrestrial." Witmer 1991; 438.
I may be misremembering, but I think I've seen (a) drawing(s) by Abel of
feathered nonavian theropods. Or maybe it was Nopsca? Early (pre-1926)
Heilmann? It was ca. early 20th century anyway. Quite possible I'm
mistaken, but I thought I'd mention it.
--John R. Hutchinson