Eocene animals of North America

thumb|thumbtime=82|Turkey vultures coming in to the same roost they use for the season.

Hoplophoneus (Greek: "murder" (phonos), "weapon" (hoplo)) is an extinct genus of saber-toothed carnivoran belonging to the family Nimravidae, sometimes known as false saber-toothed cats. The titular member of the subfamily Hoplophoninae, it is closely related to nimravids such as Eusmilus and Nanosmilus. Hoplophoneus lived in North America and Asia during the Late Eocene to Early Oligocene epochs from 35.7 to 30.5 mya, existing for approximately . Including supplementary materials The genus currently consists of three named species: H. oharri, H. occidentalis, and H. primaveus.

Metamynodon is an extinct genus of amynodont that lived in North America (White River Fauna) and Asia from the late Eocene until early Oligocene, although the questionable inclusion of M. mckinneyi could extend their range to the Middle Eocene. The various species were large, displaying a suit of semiaquatic adaptations more similar to those of the modern hippopotamus, despite their closer affinities with rhinoceroses.

Ischyromys is an extinct genus of rodent from North America. thumb|left|Skull

species of mollusc

Pangurban is an extinct genus of the family Nimravidae (the false saber-toothed cats), endemic to North America during the Eocene epoch (40–37 mya). It contains a single species, Pangurban egiae. Occurring several million years before other named nimravids in North America, the discovery of this species suggests that hypercarnivores evolved and spread quickly after the warm middle Eocene.