Plesiadapiformes

Plesiadapiformes ("Adapid-like" or "near Adapiformes") is an extinct basal pan-primates group, as sister to the rest of the pan-primates. The pan-primates together with the Dermoptera form the Primatomorpha. Purgatorius may not be a primate as an extinct sister to the rest of the Dermoptera or a separate, more basal stem pan-primate branch. Even with Purgatorius removed, the crown primates may even have emerged in this group. left|thumb|The plesiadapiform Plesiadapis|Plesiadapis cookei (right), compared to [[Notharctus tenebrosus (left), an early crown primate. Both come from Eocene Wyoming, t

Plesiadapis (near Adapis) is an extinct genus of mammal closely related to primates, found in North America and western Europe. The type species, P. tricuspidens, was described in 1877 by François Louis Paul Gervaise, based on a partial left mandible (lower jaw) uncovered in France. Fourteen valid species have since been named.

Plesiadapidae is a family of plesiadapiform mammals related to primates known from the Paleocene and Eocene of North America, Europe, and Asia. Plesiadapids were abundant in the late Paleocene, and their fossils are often used to establish the ages of fossil faunas.

Carpolestes (from Ancient Greek καρπός (karpós), meaning "fruit", and λῃστής (lēistḗs), meaning "robber", and thus, "fruit robber") is a genus of extinct primate-like mammals from the late Paleocene of North America. It first existed around 58 million years ago. The three species of Carpolestes appear to form a lineage, with the earliest occurring species, C. dubius, ancestral to the type species, C. nigridens, which, in turn, was ancestral to the most recently occurring species, C. simpsoni.

Carpolestidae is a family of primate-like Plesiadapiformes that were prevalent in North America and Asia from the mid Paleocene through the early Eocene. Typically, they are characterized by two large upper posterior premolars and one large lower posterior premolar. They weighed about 20-150g, and were about the size of a mouse. Though they come from the order, Plesiadapiformes, that may have given rise to the primate order, carpolestids are too specialized and derived to be ancestors of primates.

Ignacius is a genus of extinct mammal from the early Cenozoic era. This genus is present in the fossil record from around 62-33 Ma (late Torrejonian-Chadronian North American Land Mammals Ages). The earliest known specimens of Ignacius come from the Torrejonian of the Fort Union Formation, Wyoming and the most recent known specimens from Ellesmere Island in northern Canada. Ignacius is one of ten genera within the family Paromomyidae, the longest living family of any plesiadapiforms, persisting for around 30 Ma during the Paleocene and Eocene epochs. The analyses of postcranial fossils by pale

Paromomyidae is a family of mammals that may include the earliest primates, or taxa closely related to them.

species of primate-like mammal (fossil)

Plesiadapoidea was an extinct superfamily of primates that existed during the Paleocene and Eocene in North America, Europe, and Asia.

Micromomyidae (Micromomids) is a family of extinct plesiadapiform mammals that include some of the earliest known primates. The family includes five genera that lived from the Paleocene epoch into the early Eocene epoch.