A Taxonomic Review of the Pachycephalosauridae ( Dinosauria : Ornithischia )

@inproceedings{Sullivan2006ATR,
  title={A Taxonomic Review of the Pachycephalosauridae ( Dinosauria : Ornithischia )},
  author={Robert M. Sullivan},
  year={2006}
}
The order “Pachycephalosauria” and the family Pachycephalosauridae are re-evaluated and determined to include the same taxa. They are thus of equal rank and redundant, so only the latter taxon is recognized, the former one being redundant. The family Pachycephalosauridae includes the so-called “flat-headed” and “dome-headed” morphotypes. Stenopelix valdensis is removed from the “Pachycephalosauria” and is considered to be an indeterminate ornithischian dinosaur. The North American taxa… CONTINUE READING