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Re: Segnosaurs II
><<I used to subscribe to the Paulian interpretation of segnosaurs, too; but
>a close look at the description of _Alxasaurus_ and at the skull of
>_Erlikosaurus_, I am convinced that they are derived coelurosaurian
>theropods, probably most closely related to ornitholestids or
>The only thing I see in the skull of _Erlikosaurus_ that would lead me to
>believe that it might come from a Theropod is the enlarged basi-sphenoid. I
>see nothing else that would point directly to theropoda, most of it in fact
>points to phytodinosaurs. As I've said before, the wrists DO NOT have
The Late K therizinosauroids CLEARLY DO!! They were, in fact, one of the
main groups Barsbold Rinchen uses in describing the semilunate structure.
> I don't know where they stopped drawing _Alxasaurus'_
>bones in the picture; all the hand and finger bones are drawn correctly, but
>when it comes to the wrist, it seems as though they started drawing off of
>_Deinonychus_ instead of _Alxasaurus_ because that is not what the wrist
>bones look like. Take a look at the lower jaw of _Erlikosaurus_, it is
>*practically* identical to _Plateosaurus'_.
Thomas R. Holtz, Jr.
Dept. of Geology
University of Maryland
College Park, MD 20742