Penkalski, P.; Dodson, P. (1999). «The morphology and systematics of Avaceratops, a primitive horned dinosaur from the Judith River Formation (Late Campanian) of Montana, with the description of a second skull.». Journal of Vertebrate Paleontology. 19 (4): 692–711. Bibcode:1999JVPal..19..692P. doi:10.1080/02724634.1999.10011182
Ryan, M.J.; Holmes, R.; Mallon, J.; Loewen, M.; Evans, D.C. (2017). «A basal ceratopsid (Centrosaurinae: Nasutoceratopsini) from the Oldman Formation (Campanian) of Alberta, Canada». Canadian Journal of Earth Sciences. 54 (1): 1–14. Bibcode:2017CaJES..54....1R. doi:10.1139/cjes-2016-0110
Kentaro Chiba; Michael J. Ryan; Federico Fanti; Mark A. Loewen; David C. Evans (2018). «New material and systematic re-evaluation of Medusaceratops lokii (Dinosauria, Ceratopsidae) from the Judith River Formation (Campanian, Montana)». Journal of Paleontology. 92 (2): 272–288. Bibcode:2018JPal...92..272C. doi:10.1017/jpa.2017.62
Penkalski, P.; Dodson, P. (1999). «The morphology and systematics of Avaceratops, a primitive horned dinosaur from the Judith River Formation (Late Campanian) of Montana, with the description of a second skull.». Journal of Vertebrate Paleontology. 19 (4): 692–711. Bibcode:1999JVPal..19..692P. doi:10.1080/02724634.1999.10011182
Ryan, M.J.; Holmes, R.; Mallon, J.; Loewen, M.; Evans, D.C. (2017). «A basal ceratopsid (Centrosaurinae: Nasutoceratopsini) from the Oldman Formation (Campanian) of Alberta, Canada». Canadian Journal of Earth Sciences. 54 (1): 1–14. Bibcode:2017CaJES..54....1R. doi:10.1139/cjes-2016-0110
Kentaro Chiba; Michael J. Ryan; Federico Fanti; Mark A. Loewen; David C. Evans (2018). «New material and systematic re-evaluation of Medusaceratops lokii (Dinosauria, Ceratopsidae) from the Judith River Formation (Campanian, Montana)». Journal of Paleontology. 92 (2): 272–288. Bibcode:2018JPal...92..272C. doi:10.1017/jpa.2017.62