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meaning: "Cut bear"
Named By: Edward Drinker Cope in 1873
Time Period: early to middle Miocene 20.43-13.6 Ma
Location: Across North America
Size: About 1.2 meters long
Diet: Carnivore
Fossil(s): Multiple individuals
Classification: | Chordata | Mammalia | Carnivora | Canidae | Borophaginae |
Also known as: | Aelurodon francisi | Aelurodon simulans |

Tomarctus is a canid genus of the extinct subfamily Borophaginae which inhabited most of North America during the late Early Miocene to the Early Barstovian age of the Middle Miocene (23--16 million years ago). Tomarctus existed for approximately 6.83 million years.

This animal shared a period and ecology with a variety of other bear dogs like the giant mustelid genus of bone-crushing canidae, Cynarctoides. As the bear dogs and giant mustelids became extinct, Tomarctus further radiated to fill a line of dogs which filled the hyena-like fruit eating and bone-crushing niches.

Read more about Tomarctus at Wikipedia
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