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On Fri, 14 Apr 1995, Stan Friesen wrote:
> The heterodontosaurids apparently evolved from basal ornithishchians,
> and left no known descendents (i.e they were a "dead-end").
George Olshevsky ("A Revision of the Parainfraclass Archosauria Cope,
1869, Excluding the Advanced Crocodylia," _Mesozoic Meanderings #2_, 1991,
page 99) postulates that the heterodontosaurids may have given rise to the
But, then, I confess I have a certain personal fondness for