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Re: Ceratops (was RE: Glishades ericksoni, ...)
T. Michael Keesey wrote:
> On Thu, May 13, 2010 at 6:25 PM, Thomas R. Holtz, Jr. <firstname.lastname@example.org>
>> It depends on what the agreed upon definition of Ceratopsidae is to be.
>> it is (for example) Centrosaurus + Chasmosaurus, than Ceratops might
>> be a non-ceratopsid. If instead Ceratopsidae is defined as Ceratops +
>> Centrosaurus + Chasmosaurus, than it would be included by definition,
>> might be outside Chasmosaurus > Centrosaurus and Centrosaurus >
> Probably the best solution, since both relevant nomenclatural codes
> (ICZN and the draft PhyloCode) require Ceratops montanus to be within
> Ceratopsidae by definition. It does have one little drawback, and
> that's that it potentially leaves Clade(Centrosaurus + Chasmosaurus)
> without a name.
Only until someone names it...
Thomas R. Holtz, Jr.
Email: email@example.com Phone: 301-405-4084
Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
Faculty Director, Earth, Life & Time Program, College Park Scholars
Faculty Director, Science & Global Change Program, College Park Scholars
Mailing Address: Thomas R. Holtz, Jr.
Department of Geology
Building 237, Room 1117
University of Maryland
College Park, MD 20742 USA