[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Psittacosaurus queries

I should have coded P. xinjiangensis as "0" for character 11 (ventrolateral
dentary ridge) based on Brinkman et al. (2001).  This destroys all structure
in the consensus tree.  Even in the old tree, the clades had terrible
bootstraps (19% for everything but mazongshanensis; 32% for everything but
mongoliensis and mazongshanensis; 22% for sinensis + ordosensis +
neimongoliensis).  Clearly more characters are needed to determine the
interrelationships of Psittacosaurus species.

Mickey Mortimer