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Re: Re: A few more...



>In a message dated 95-09-28 13:58:31 EDT, Thomas_R_HOLTZ@umail.umd.edu (th81)
>writes:
>
>>Ceratosauria + Tetanurae has been labled "Neotheropoda" (a 1986 Bakker name,
>>actually) by Sereno et al. (in the Afrovenator paper).
>
>Neotheropoda is congruent to Theropoda.

No, it isn't.  Neotheropoda is a node-based name (the most recent common
ancestor of Ceratosauria & Tetanurae, and all descendants of that ancestor).

Theropoda is a stem-based name (all taxa sharing a more recent common
ancestor with birds than with Triceratops).

The dates for the phylogenetic definitions (with regards to priority) are
1994 for Neotheropoda and 1986 for Theropoda.

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