In a message dated 2/5/99 8:09:48 PM EST, thescelosaurus@juno.com writes: << Is anyone working on the many species of *Psittacosaurus*? All of those species inclines me to think that someone has either oversplit specifically or undersplit generically. >> Believe it or not, all the _Psittacosaurus_ species really do seem to belong to the same genus(!).