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