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Re: Taxonomy and naming issues
Jonathan Wagner wrote:
>Tim Williams writes (how *do* you write upside-down? ;) ):
>>What do you define as an "avetheropod" - is it equivalent to Paul
>>Sereno's Neotetanurae (Allosauroidea+Coelurosauria)?
> If I recall correctly from Mayr's textbook on taxonomy,
>suprafamilial taxa do not have "priority" in the traditional sense.
Not as in the ICZN rules, no. However, as a follower of the de
Querioz-Gauthier school of phylogenetic taxonomy, I recognize another
principle of priority: two taxa are objective synonyms if they have
exactly the same phylogenetic definition (e.g., Gauthier's 1986
Tetanurae and Novas' 1990 Avipoda: birds and all theropods closer to
birds than to Ceratosaurus). Two taxa are subjective synonyms if they
conscribe exactly the same clade, but use one or two different taxa in
> I hear (from Nick Pharris) that Tom Holtz has resurrected the
>Carnosauria as Allosauroidea + Basal allosaurs. Any comment (TRH?).
>Of course, the problem I see ebing that no one has proven that there
>ARE basal Carnosaurs outside of Sereno's Allosauroidea (Piatnitz,
>IMHO, is a Megalosaur, Torvosaur, or it's own thang).
See a previous (2 minutes ago posting).
And, Allosauroidea is a Currie and Zhao name.
>BTW: Sinraptor *is* related to Megalosaurus, probably about as closely
>as Tyrannosaurus is to Gallimimus (of course, that's very subjective).
No, objectively, Sinraptor is more closely related (i.e., shares a more
recent common ancestor) with Tyrannosaurus and Gallimimus and Trochilis
(hmmmmmmmmmmmm) than it is to Megalosaurus. :-)
Thomas R. Holtz, Jr.
Vertebrate Paleontologist Webpage: http://www.geol.umd.edu
Dept. of Geology Email:firstname.lastname@example.org
University of Maryland Phone:301-405-4084
College Park, MD 20742 Fax: 301-314-9661
"There are some who call me... Tim."