Aulophyseter

Aulophyseter is an extinct genus of sperm whales from the Miocene formations of the west and east coasts of North America.

Aulophyseter reached a length of approximately 6 m with an estimated body weight of 1100 kg.

Distribution
Fossils of Aulophyseter have been found in:
 * Oidawara Formation, Japan
 * United States
 * Temblor Formation, California
 * St. Marys Formation, Maryland