Re: Questions , Questions ,Questions

[forelf@internet19.fr (Francoise Forel)]

>
>  I second Felix here. Current analysis (I don't have the ref) shows
>that Coelophyoidea forms the outgroup to Tetanurae, which includes
>Ceratosaurus at the base of Neoceratosauria (Ceratosaurus +
>Abelisauroidea, I think) and Neotetanurae (Avetheropoda +
>Megalosaurus) or something similar.

Really? In fact, in this scheme you ca also say that Tetanurae outgroups
Coelophysoidea, its sister taxon. My present understanding of the situation
is a Ceratosauria composed of Coelophysoidea AND Neoceratosauria "sister
grouping" the Tetanurae.

I think the scheme you present is a new one. Anyway, it is almost never used
in scientific books.

I would well se a (Coelophysoidea (Abelisauroidea (Ceratosauridae+"classic
tetanurans") scheme, but we'll have to wait for my analysis ( and Scott
Sampson will also have his word to say).

>
>  (from Holtz (1994b))
>
>==
>Jaime A. Headden
>
>Qilong, the website, at:
>http://members.tripod.com/~Qilong/qilong.html
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Best regards.


Félix Landry
e-mail: forelf@internet19.fr