Enhydrocyon basilatus
Encyclopedia
Enhydrocyon basilatus is an extinct species of bone crushing hesperocyonid
Hesperocyoninae
Hesperocyoninae is a subfamily of extinct canids.-Taxonomic history:Hesperocyoninae was named by Martin . The members of this subfamily were reassigned to the family Canidae by Xiaoming Wang in 1999....

 dog
Canidae
Canidae is the biological family of carnivorous and omnivorous mammals that includes wolves, foxes, jackals, coyotes, and domestic dogs. A member of this family is called a canid . The Canidae family is divided into two tribes: Canini and Vulpini...

 that lived during the Late Oligocene to Miocene
Miocene
The Miocene is a geological epoch of the Neogene Period and extends from about . The Miocene was named by Sir Charles Lyell. Its name comes from the Greek words and and means "less recent" because it has 18% fewer modern sea invertebrates than the Pliocene. The Miocene follows the Oligocene...

 living from 24.8—20.6 Ma and existed for approximately .
The dentition of E. basilatus suggests this animal was a hypercarnivore
Hypercarnivore
A hypercarnivore is an animal which has a diet that is more than 70% meat, with the balance consisting of non-animal foods such as fungi, fruits or other plant material. Some examples include the big cats, dolphins, eagles, snakes, marlin, most sharks, and such invertebrates as octopuses and sea...

 or mesocarnivore
Mesocarnivore
A mesocarnivore is an animal whose diet consists of 50–70% meat with the balance consisting of nonvertebrate foods which may include fungi, fruits, and other plant material...

.

Taxonomy

Enhydrocyon basilatus was named by Cope (1879). It was recombined as Hyaenocyon basilatus by Cope (1879); it was revalidated by Matthew (1907) and Wang (1994). It was assigned to Hyaenocyon by Cope (1879); and to Enhydrocyon
Enhydrocyon
Enhydrocyon is an extinct genus of bone crushing dog which inhabited North America exclusively during the Oligocene living from around 28.7—22.0 Ma and existed for approximately ....

by Cope (1879), Matthew (1907) and Wang (1994).
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