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Re: Bovids vs. Antilocaprids (new question)



Quoting Mike Lima <taradosgon@yahoo.com>:

Fernandez, M.H & Vrba, E.S., 2005: A complete
estimate of the phylogenetic relationships in
Ruminantia: a dated species-level supertree of the
extant ruminants. Biological Reviews: Vol. 80, pg.
269.

(Giraffidae + Antilocapridae) + (Cervoidea + Bovoidea)

Quoting "Jaime A. Headden" <qilongia@yahoo.com>:

 Beintema, J. J., H. J. Bruekelman, J. Y. Dubois, H. W. Warmels. 2003.
   Phylogeny of ruminants secretory ribonuclease gene sequences of pronghorn
   (*Antilocapra americana*). _Molecular Phylogenetics and Evolution_
   26(1):18-25.

(Giraffidae + Antilocapridae) + (Cervidae + Bovidae) or Giraffidae + Antilocapridae + (Cervidae + Bovidae)

 Hassanin, A. and E. J. P. Douzery. 2003. Molecular and morphological
   phylogenies of ruminants, and the alternative position of the Moschidae.
   _Systematic Biology_ 52: 206-228.

Tragulidae + (Antilocapridae + Giraffidae + (Cervidae + (Bovidae + Moschidae)))


And reaching back slightly farther, we have:

Matthee, Conrad A., Jay D. Burzlaff, Jeremy F. Taylor, and Scott K. Davis. 2001.
Mining the mammalian genome for artiodactyl systematics. _Systematic Biology_
50(3): 367-390.


The typology recovered is not entirely clear from the abstract, but it appears
to be:

Tragulidae ?+Moschidae + (Antilocapridae + (Giraffidae + Bovidae + Cervidae))

So, to answer the original poster's question, the Antilocapridae are a radiation
of endemic North American ruminants that, based on molecular evidence, do not
appear to be particularly closely related to Bovidae and may instead be
relatively basal within Ruminantia (possibly connected with Giraffidae).


Nick Pharris
Ph.D. Candidate
Department of Linguistics
University of Michigan