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Named By: R. Kellogg in 1927
Time Period: Mid-Late Miocene~15.97-5.332 Ma
Location: USA, California - Sharktooth Hill, Maryland - Saint Mary;'s Formation. Argentina, Rio Negro
Size: Uncertain
Diet: Carnivore
Fossil(s): Several specimens
Classification: | Chordata | Mammalia | Cetacea | Odontoceti | Physeteridae |

Aulophyseter is an extinct genus of sperm whales from the Miocene formations of the west and east coasts of North America, as well as the Patagonian region of South America. It is a possible synonym of some fossils assigned to Orycterocetus.

Aulophyseter reached a length of approximately 6 metres (20 ft) with an estimated body weight of 1,100 kilograms (2,400 lb).

Read more about Aulophyseter at Wikipedia
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