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Re: Oryctos Is Back
> Total-evidence approach. Throw it all together and see
> which signal is
The biogeography doesn't seem right. Dispersal of semi-volant microtheropods
around the J-K boundary would be predominantly E -> W IIRC and they'd have to
do a generous bit of ocean crossing for which they were not well-equipped.
What seems certain is that highly interesting marerial is liable to occur in
the E slope of the Urals. And perhaps also in some former islands in C Europe,
but I think many have been rather well-explored.
Range extensions of smaller mammals in the Great American Interchanges might
give some idea of the time involved.
> What do you mean? Fusion in adults is the plesiomorphic
> condition here, and
> a joint the derived one. (Also found in *Rahonavis* and
> some or all of the
> Chinese long-tailed "birds", I forgot which ones.
> Not found in *Sapeornis*
> or confuciusornithids.)
What I mean is how to score the difference between enantis and euornis. Not as
a binary character (fusion/joint).
How well is tarsometatarsus evolution documented?
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