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I'm relatively certain we have talked about Proceratosaurus before.
It is a partial skull from the Middle Jurassic of England.
Greg Paul & I are just about the only people to consider it's phylogenetic
Greg considered it the sister taxon to _Ornitholestes_.
In my Gaia paper, it comes out as one of the basalmost coelurosaurs. In the
Ostrom Symposium (which admittedly uses fewer taxa and characters), it shows
up as... the sister taxon to _Ornitholestes_ (and the position of this whole
clade bops about between being basal coelurosaurs and basal maniraptorans).
Thomas R. Holtz, Jr.
Department of Geology Director, Earth, Life & Time Program
University of Maryland College Park Scholars
College Park, MD 20742
Phone: 301-405-4084 Email: email@example.com
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