Eocene carnivorans

Arctoidea is an infraorder of mostly carnivorous mammals which include the extinct Hemicyonidae (dog-bears), and the extant Musteloidea (weasels, raccoons, skunks, red pandas), Pinnipedia (seals, sea lions), and Ursidae (bears), found in all continents from the Eocene, , to the present. The oldest group of the clade is the bears, as their CMAH gene is still intact. The gene became non-functional in the common ancestor of the Mustelida (the musteloids and pinnipeds). Arctoids are caniforms, along with dogs (canids) and extinct bear dogs (Amphicyonidae). The earliest caniforms were superficially

Eusmilus ('true sabre') is a prehistoric genus of nimravid that lived in Europe and North America during the Late Eocene to Early Oligocene epochs (34.7–29.5 mya).

Dinictis is a genus of the Nimravidae, an extinct family of feliform mammalian carnivores, also known as "false saber-toothed cats". Assigned to the subfamily Nimravinae, Dinictis was endemic to North America from the Late Eocene to Early Oligocene epochs (35.7—29.5 million years ago), existing for about . Including supplementary materials

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.

Hesperocyon is an extinct genus of canids belonging to the subfamily Hesperocyoninae of the canid family that was endemic to North America, ranging from southern Canada to Colorado. It appeared during the Uintan age, –Bridgerian age (NALMA) of the Mid-Eocene– 42.5 Ma to 31.0 Ma. (AEO). Hesperocyon existed for approximately .

Cynodictis ("slender dog marten") is an extinct amphicyonid carnivoran which inhabited Eurasia from the Late Eocene subepoch to the Early Oligocene subepoch living from 37.2 to 28.4 million years ago, existing for approximately .

Maofelis cantonensis is an extinct basal nimravid from Late Eocene-aged Youganwo Formation of Maoming Basin, Guangdong Province, China.

Lycophocyon is an extinct genus of caniformian carnivoran from Middle Eocene (early Duchesnean and possibly late Uintan NALMA) deposits of San Diego County, California. Lycophocyon is known from the holotype UCMP  85202, a partial left and right dentary. Paratypes include UCMP 170713, SDSNH 107658, SDSNH 107659, SDSNH 107442, SDSNH 107443 and SDSNH 107444, partial dentaries, mandibles and other cranial remains, and SDSNH 107446 and SDSNH 107447, cranial and postcranial fragments. Many additional specimens are also known. All specimens were collected from numerous localities, all of them f

Guangxicyon is a medium-sized, extinct genus of amphicyonid carnivoran, or "bear dog," which inhabited southern China during the Late Eocene. It is notable for being the oldest member of its family known from Asia, and is characterized by a shortened face and atypical, bunodont dentition. It inhabited a subtropical forest shaped by monsoon climate not unlike the one present in the region where it was found today. Only a single species, Guangxicyon sinoamericanus, is known.

The Daphoeninae are an extinct subfamily of dog-like, terrestrial carnivores, which belonged to the family Amphicyonidae of the suborder Caniformia. The group inhabited North America from the Middle Eocene subepoch to the Middle Miocene subepoch 42—15.97 million years ago (Mya), existing for about .

Parictis is an extinct arctoid belonging to the family Subparictidae.

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.

Prohesperocyon ("before Hesperocyon") is an extinct genus of canid, endemic to North America appearing during the Late Eocene around 36.6 mya (AEO).

Chailicyon is an extinct genus in the basal Carnivoramorph family Miacidae that lived in Asia during the Middle to Late Eocene.