†Siphonocetus clarkianus Cope 1895 (whale)
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 Siphonocetus according to E. D. Cope 1895
Sister taxa: Aetiocetidae, Aetiocetoidea, Balaenoptera cortesii portisii, Cetotherioidea, Cetotheriopsis, Chaeomysticeti, Eomysticetidae, Llanocetidae, Mammalodontidae, Mauicetus, Physalidae, Pterobalaenidae
Type specimen: USNM 12721
Ecology: aquatic carnivore-suspension feeder