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RE: Allosauroid _Abelisaurus_???
> From: email@example.com [mailto:firstname.lastname@example.org]On Behalf Of
> T. Mike Keesey
> Wow! From the abstract:
> "_Abelisaurus_ shares apomorphic characters with Carnotaurinae, but many
> of these characters are also found in the carcharodontosaurid allosauroid
> _Giganotosaurus_. As it is known only from cranial material lacking
> carnotaurine synapomorphies, _Abelisaurus _may represent a late-surviving
> carcharodontosaurid derivative."
> I can't read the paper, but it looks like they are suggesting that
> _Abelisaurus_ is not a ceratosaur at all, but a carcharodontosaurine!
> (Or carcharodontosaurid, depending on your taxonomic preference.) This
> would have some pretty profound implications for ceratosaurian taxonomy.
> (Like the abandonment of _Abelisauria_ and _Abelisauroidea_ -- what would
> we even call these critters? And how many abelisaurs would _Abelisaurus_
> "take with it" into _Carcharodontosaurinae/idae_?)
The authors do not come to the *conclusion* that _Abelisaurus_ is an
allosauroid; in fact, they accept it as an abelisaurid and relative to the
carnotaurines. However, they do point out (as have others before them) the
anatomical similarities shared by _Abelisaurus_ and _Giganotosaurus_; and
that, because _Abel._ lacks postcranial material, the potential exists that
in the future we COULD find that it is a carcharodontosaur.
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
Fax (Geol): 301-314-9661 Fax (CPS-ELT): 301-405-0796