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Re: Pteros might be dinos?!? Oh no ...

The Phylocode-experts here may tell me if for phylogenetic definitions
there is a rule of priority. In the recent paper of Langer et al.
(2009) it is said that the first to phylogenetically define Dinosauria
is Novas (1992), and in this work he specifically considered this
taxon as a specifier of the Dinosauria, and according to him, also
Gauthier (1986). However, today we accept a definition without
Herrerasaurus as a specifier, by Padian and May (1993). Why is this


Gauthier, J. (1986). Saurischian monophyly and the origin of birds. In
The origin of Birds and the Evolution of Flight (ed. K. Padian).
Memoir of the California Academy of Science 8: 1–55.

Langer, M. C., Ezcurra, M. D., Bittencourt, J. S. & Novas, F. E.
(2009) The origin and early evolution of dinosaurs. Biological Reviews
84: 1–56.

Novas, F. E. (1992b). Phylogenetic relationships of the basal
dinosaurs, the Herrerasauridae. Palaeontology 35: 51–62.

Padian, K.&May, C. L. (1993).The earliest dinosaurs. New Mexico Museum
of Natural History & Science Bulletin 3, 379–381.