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Re: Paired Eggs in a Dinosaur Indicate Biological Sex



Quoting Ian Paulsen <birdbooker@zipcon.net>:

> HI:
>  I wonder if Pterosaurs and relatives had one or two ovaries?

I think the answer is, we don't know for sure.  But since two functional ovaries
is primitive for archosaurs (and reptiles and amniotes), the smart money's on
two until we have good evidence otherwise.

Nick Pharris
Ph.D. Candidate
Department of Linguistics
University of Michigan