Re: Tyrannosauroids and dromaeosaurs

["Mickey Mortimer" <Mickey_Mortimer111@msn.com>]

Jaime Headden wrote-

>> Now it's [refering to *Protarchaeopteryx*] a basal enigmosaur, sister to
>> Segnosauria + Oviraptorosauria.>
>
>   Yet Mickey has repeatedly argued that the figure in Naish, Martill and
> Barker (2001) implies a cladistic definition of {Oviraptorosauria +
> Segnosauria}. What, if anything, is the implied usage of "Enigmosauria"
> sensu Mortimer, to apply *Protarchaeopteryx* in relation to? Is it a stem,
> node, apomorphy-defined clade name?

I don't believe I've ever explicitly defined Enigmosauria, though I've
thought of it as something akin to "All taxa sharing a more recent common
ancestor with Enigmosaurus mongoliensis and Oviraptor philoceratops than
with Ornithomimus velox, Troodon formosus, Deinonychus antirhhopus or Vultur
vultur."  Consider that my working definition.  We'll have to wait until
1-1-200n for an official definition of course.

Mickey Mortimer