What is "dissacus"

Dissacus is a genus of extinct carnivorous jackal to coyote-sized mammals within the family Mesonychidae whose fossils are found in Paleocene to Early Eocene aged strata in France, Asia and southwest North America, 66—50.3 mya, existing for approximately .

The bear-sized Ankalagon is closely related to Dissacus, being regarded as a sister or daughter genus.

Dissacus had a Holarctic distribution but Dissacus europaeus is the only mesonychid currently known from European strata. The fossil record of this species is fragmentary; remains in Cernay, France, include a mandible, a complete radius, and fragments of a humerus. A morphological study of these bones suggests this animal was digitigrade and more cursorial than is usually assumed for the genus.