Mammalia - Cetacea - Physeteridae

Alternative combinations: Diaphorocetus mediatlanticus, Hypocetus atlanticus, Hypocetus mediatlanticus, Orycterocetus mediatlanticus, Paracetus mediatlanticus

Full reference: E. D. Cope. 1895. Fourth contribution to the marine fauna of the Miocene period of the United States. Proceedings of the American Philosphical Society 34:135-155

Belongs to Aulophyseter according to M. D. Uhen et al. 2008

Sister taxa: Aulophyseter morricei, Aulophyseter rionegrensis

Type specimen: USNM 10594. Its type locality is Drum Point, which is in a Tortonian marine horizon in the Saint Marys Formation of Maryland.