Physeterula

Physeterula was a prehistoric close relative of the sperm whale from the Miocene. Its fossils have been found in Europe and the United States.^[1]

Physeterula Temporal range: Miocene
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Suborder:	Whippomorpha
Infraorder:	Cetacea
Family:	Physeteridae
Subfamily:	Physeterinae
Genus:	†Physeterula Van Beneden, 1877
Species
P. dubusi

This large species is the most stemward physeterid, retaining functional upper teeth lacking enamel.^[2]