Extinct mammals of North America

extinct species of mammoth (Mammuthus)

species of extinct mammal

species of mammal

Subspecies of mammal

Hyaenodontidae ("hyena teeth") is a family of placental mammals in the extinct superfamily Hyaenodontoidea. Hyaenodontids arose during the early Eocene and persisted well into the early Miocene. Fossils of this group have been found in Asia, North America and Europe.

Oxyaena ("sharp hyena") is an extinct genus of placental mammals from extinct subfamily Oxyaeninae within extinct family Oxyaenidae, that lived in Europe, Asia and North America (with most specimens being found in Colorado) during the early Eocene.

extinct subspecies of mammal

extinct subspecies of mammal

species of mammal

species of mammal

Orohippus (from the Greek , 'mountain' and , 'horse') is an extinct equid that lived in the Eocene (about 50 million years ago). Its fossils have been unearthed in Oregon, Colorado, Utah, and Wyoming.

subspecies of grey wolf

Epihippus is an extinct genus of the modern horse family Equidae that lived in the Eocene, from 46 to 38 million years ago.

Extinct subspecies of the gray wolf

species of mammal

subspecies of mammal

subspecies of mammal

subspecies of mammal

Rhizosmilodon is an extinct genus of saber-tooth cat of the subfamily Machairodontinae that lived during the Early Pliocene and was discovered in the U.S. state of Florida.

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

Batodonoides (often misspelled as Batonoides) is a genus of extinct shrew-like mammals, which includes a species that is possibly the smallest mammal to have ever lived. Species of Batodonoides lived about during the early to middle Eocene Epoch in North America. The genus contains four species: the type species B. powayensis, the older B. vanhouteni, B. walshi and B. rileyi.

Bathyopsis, from Ancient Greek βαθύς (bathús), meaning "thick", and ὄψις (ópsis), meaning "face", is an extinct genus of dinocerates. The genus is known from Eocene North America.

Meniscoessus is a genus of extinct multituberculates from the Upper Cretaceous Period that lived in North America.

Apataelurus ("false cat") is an extinct genus of saber-toothed placental mammals from the extinct family Oxyaenidae, that lived in North America and East Asia during the Middle Eocene, 45-42 million years ago. This genus was defined by teeth that were well-adapted to a carnivorous diet. A distinct feature described was a long upper canine tooth that resembled a saber tooth. There are two species currently described: Apataelurus kayi, the type species, and Apataelurus pishigouensis, discovered in 1986.

Orycterocetus is an extinct genus of sperm whale from the Miocene of the northern Atlantic Ocean.

extinct subspecies of mammal

thumb|left|Restoration of Haplohippus (middle right) and other animals of the Hancock Mammal Quarry Haplohippus is an extinct genus of the modern horse family Equidae, that lived in the Eocene, from 42 to 38 million years ago. Fossil remains of Haplohippus have been found in the Clarno Formation, part of the John Day Fossil Beds National Monument of the Northwestern United States. While Haplohippus is quite similar to Orohippus, it is considered more primitive in character than Epihippus.

left|thumb|Horn cores of T. schuleri, American Museum of Natural History Tetrameryx is an extinct genus of the North American artiodactyl family Antilocapridae, known from Mexico, the western United States, and Saskatchewan in Canada.

Prodaphaenus ("before Daphoenus") is an extinct genus of placental mammals from clade Carnivoraformes, that lived in North America during the middle Eocene.

Hyaenodontinae ("hyena teeth") is an extinct subfamily of predatory placental mammals from extinct family Hyaenodontidae. Fossil remains of these mammals are known from early Eocene to early Miocene deposits in Europe, Asia and North America.

Gracilocyon ("gracile dog") is an extinct paraphyletic genus of placental mammals from clade Carnivoraformes, that lived in North America and Europe from the late Paleocene to the early Eocene.

thumb|left|Skull

Miocyon ("lesser dog") is an extinct genus of placental mammals from clade Carnivoraformes, that lived in North America from the early to late Eocene.

Prosthennops is a genus of extinct peccaries that lived in North and Central America between the middle Miocene and lower Pliocene (around 15-5 million years ago).

Mylagaulus is an extinct genus of rodents in the family Mylagaulidae. Mylagaulus lived in the Americas during the middle to late Miocene.

extinct population of grizzly bears

Eucosmodon is a genus of extinct mammal from the Paleocene of North America. It is a member of the extinct order of Multituberculata within the suborder of Cimolodonta, and the family Eucosmodontidae. This genus has partly also been known as Neoplagiaulax. All known fossils of this small mammal are restricted to teeth.

Pentacosmodon is a mammal genus from the Paleocene of North America, so it lived somewhat after the "age of the dinosaurs". It was a member of the extinct order Multituberculata. It's within the suborder Cimolodonta and family Microcosmodontidae.

Dawsonicyon ("Dawson's dog") is an extinct genus of placental mammals from clade Carnivoraformes, that lived in North America from the early to middle Eocene. Fossils of type species Dawsonicyon isami are known from the ‘Bridger B’, site of Black's Fork member of the Bridger Formation in Wyoming, and includes an almost complete skeleton (holotype DMNH 19585).

Mimoperadectes is an extinct genus of metatherian mammal from the Eocene of North America. thumb|left|Restoration