Ysengrinia is an extinct genus of large, mostly carnivorous bone-crushing mammal

Mammal

Mammals are members of a class of air-breathing vertebrate animals characterised by the possession of endothermy, hair, three middle ear bones, and mammary glands functional in mothers with young...

s known as bear dog

Bear dog

Amphicyonidae is an extinct family of large terrestrial carnivores belonging to the suborder Caniformia and which inhabited North America, Europe, Asia, and Africa from the Middle Eocene subepoch to the Pleistocene epoch 46.2—1.8 Mya, existing for approximately .-Taxonomy:Amphicyonidae was named...

s, of the family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Amphicyonidae endemic to Europe

Europe

Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

, Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

, and North America

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

 during the 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 22.4—20 Ma and existed for approximately .

Taxonomy

Ysengrinia was named by Leidy (1853). was named by Ginsburg (1965). It was assigned to Amphicyoninae by Hunt (1998); and to Amphicyonidae by Ginsburg (1965), Carroll (1988) and Hunt (2002).

Morphology

A single specimen was examined by Legendre and Roth for body mass and was estimated to weigh 71.6 kg (157.9 lb).