Mammalia - Cetacea - Cetotheriidae

Full reference: R. Kellogg. 1925. Fossil cetotheres from California. Contributions to Palaeontology from the Carnegie Institution of Washington 348(2):35-56

Belongs to Cetotherium according to K. K. Tarasenko and A. V. Lopatin 2012

Sister taxa: Cetotherium capellinii, Cetotherium crassangulum, Cetotherium incertum, Cetotherium klinderi, Cetotherium mayeri, Cetotherium parvum, Cetotherium polyporum, Cetotherium priscum, Cetotherium pusillum, Cetotherium rathkei, Cetotherium riabinini

Type specimen: USNM 26521, a partial skeleton. Its type locality is Stone Canyon, which is in a Burdigalian marine sandstone/coal in the Vaqueros Formation of California.

Ecology: aquatic carnivore-suspension feeder