Re: Therizinosauroid apomorphies

["T. Mike Keesey" <tmk@dinosauricon.com>]

On Tue, 4 Apr 2000, Jaime A. Headden wrote:

>   No, so this would appear to be a synapomorphy for
> Therizinosauroidea; as it is, Therizinosauroidea == {
> Alxa + Erliko },

{_Therizinosaurus_ + _Alxasaurus_}

> based on Russell and Dong's
> description and diagnosis. The name can be restricted
> easily, and Segnosauria can be used for all other
> therizinosaurs: == { Erlikosaurus > Oviraptor,
> Saurornithoides, Gallimimus, Tyrannosaurus, etc.... }

I believe the name for this clade is Therizinosauria, defined in The
Encyclopedia of Dinosaurs.

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