| Mammacyon Temporal range: Oligocene-Miocene |
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|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Carnivora |
| Suborder: | Caniformia |
| Family: | Amphicyonidae |
| Subfamily: | Daphoeninae |
| Genus: | †Mammacyon Loomis (1936) |
Mammacyon is an extinct genus of large, mostly carnivorous bone-crushing mammals known as bear dogs, of the family Amphicyonidae endemic to North America during the Oligocene to Miocene living from 30.8—20.6 Ma and existed for approximately 10.2 million years. [1]
Mammacyon was named by Loomis (1936).[2] Its type is Mammacyon obtusidens. It was assigned to Amphicyonidae by Loomis (1936) and Carroll (1988); and to Temnocyoninae by Hunt (1998).[3]
A single specimen was examined by Legendre and Roth for body mass and was estimated to weigh 39.3 kg (87 lb).[4]