Materials and methods

Database contains dinosaur genera generally considered valid as at the end of 2001.
Aves sensu Chiappe is omitted from the database: Clade (Archaeopteryx + modern birds)
Analysis program is Free (GNU GPL), and will be made available once the findings have been published.
The program DOES NOT run a cladistic analysis: it uses a specified phylogeny, an uncontroversial consensus.

Database contains dinosaur genera generally considered valid as at the end of 2001.