Mammalia - Cetacea - Balaenopteridae

Full reference: G. D. Hanna and M. McLellan. 1924. A new species of whale from the type locality of the Monterey Group. Proceedings of the California Academy of Sciences 13(14):237-241

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

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

Type specimen: CASG 1733, a partial skull. Its type locality is Saucito Rancho, which is in a Tortonian marine shale in California.

Ecology: aquatic suspension feeder