Dalman, S. G.; Lucas, S. G.; Jasinski, S. E.; Lichtig, A. J.; Dodson, P. (2021). The oldest centrosaurine: a new ceratopsid dinosaur (Dinosauria: Ceratopsidae) from the Allison Member of the Menefee Formation (Upper Cretaceous, early Campanian), northwestern New Mexico, USA. PalZ. 95(2): 291-335.
Dalman, S. G.; Lucas, S. G.; Jasinski, S. E.; Lichtig, A. J.; Dodson, P.
2021
The oldest centrosaurine: a new ceratopsid dinosaur (Dinosauria: Ceratopsidae) from the Allison Member of the Menefee Formation (Upper Cretaceous, early Campanian), northwestern New Mexico, USA