Am 13.10.2011 16:02, schrieb Mickey Mortimer:
Maybe compsognathids as currently recognized are united by ontogenetic features and at least some taxa like Juravenator and Scipionyx are baby carnosaurs or megalosaurs instead of coelurosaurs. But I'd be very surprised if this specimen and Juravenator aren't the same kind of theropod, whatever they are.
It's interesting in this context that, in 2001 (I think), Nick Longrich gave a talk at the SVP meeting about his finding that one (just one) of the referred specimens of *Sinosauropteryx* was a carnosaur.