Re: Re: New Theropods

[Thomas_R_HOLTZ@umail.umd.edu (th81)]

George Olshevsky wrote:

>Tom Holtz suggested a close relationship with _Dryptosaurus_ (Cope's
>_Laelaps_) from the Maastrichtian of New Jersey. I'm quite inclined to
>agree with him because of the general proportions of the hind limbs of
>_Deltadromeus_ and _Dryptosaurus_, but to clinch it I'd like to see a
>picture of a _Dryptosaurus_ metatarsal III: if it's >>not<< pinched,
>we've got a good case for referring _Deltadromeus_ to Dryptosauridae.

So would I, since that element isn't currently known!!

The anatomy of mts II and IV suggest that it *could* be moderately
pinched, but not as far as a good arctomet foot.

The humeri of Deltadromeus and Dryptosaurus are similar, as well.

Thomas R. Holtz, Jr.
Vertebrate Paleontologist     Webpage: http://www.geol.umd.edu
Dept. of Geology              Email:th81@umail.umd.edu
University of Maryland        Phone:301-405-4084
College Park, MD  20742       Fax:  301-314-9661

"There are some who call me...  Tim."