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Re: Sereno's (2005) new definitions
On Fri, 23 Dec 2005 14:24:12 -0600 Tim Williams
> Phil Bigelow wrote:
> >Could someone give an example of a metataxon?
> _Lagosuchus talampayensis_ (type species for _Lagosuchus_) is a
> Sereno and Arcucci (1994; JVP 14: 53-73) declared _L. talampayensis_
> to be a
> nomen dubium.
> The fact that the _L. talampayensis_ material lacks autapomorphies
> is alone
> insufficient justification to declare the species a nomen dubium,
> IMHO. The
> situation is complicated by the suggestion that the holotype for _L.
> talampayensis_ may be a composite of more than one species,
So a metataxon lacks recognizable autapomorphies (autapomorphies =
derivations common to its supposed "group").
And in the case of a nomen dubium, the material is not accompanied by an
adequate definition of its uniqueness, or the material is considered
I can see where a neophyte could confuse these two terms.
Merry Christmas and Happy Hanukkah to all.
"Am I crazy, Jerry? Am I? Or, I am SO sane that you just blew your
mind?!" - Kramer