From there, this family evolved into a wide variety of genera, including Arctocyon (known as/similar to Claenodon in North America), Arctocyonides, Landenodon, and Mentoclaenodon, found in the late Paleocene layers of Cernay, France.
They were once viewed as primitive carnivores, like the Paleocene family Arctocyonidae, and their diet probably included meat and fish.