Mammalia - Cetacea - Balaenopteridae

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 Balaenoptera according to O. P. Hay 1930

Sister taxa: Balaenoptera brevicauda, Balaenoptera cephalus, Balaenoptera davidsonii, Balaenoptera fasciata, Balaenoptera floridana, Balaenoptera minutis, Balaenoptera physalus, Balaenoptera ryani, Balaenoptera taiwanica

Type specimen: USNM 9347, a partial skull (auditory bulla)

Ecology: aquatic suspension feeder