Family
Extinct

Agathaumidae

subjective synonym of Ceratopsidae
Cope 1889
This taxon is considered subjective synonym of of the valid taxon Ceratopsidae according to the Paleobiology Database. See the page for Ceratopsidae →
Bibliography
Original description
E. D. Cope. 1889. The horned Dinosauria of the Laramie. The American Naturalist 23(272):715-717