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Re: Avialian synapomorphies

In a message dated 95-09-07 16:25:01 EDT, Thomas_R_HOLTZ@umail.umd.edu (th81)

>Robust furcula for hypertrophied flight musculature [true to a certain
>extent, although oviraptorids and (perhaps) some dromaeosaurids have
>substantial furculae as well, and even the new Morrison ?allosaurid seems to
>have a primitive furcula!]

_Longisquama insignis_ has a furcula. _Allosaurus fragilis_ also has a
furcula, long misidentified as an abdominal rib. Furculae may be primitive
for Theropodomorpha.