Plesiadapis
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Plesiadapis is an extinct genus of mammal closely related to primates, which lived in North America and western Europe during the Paleogene period. The type species, P. tricuspidens, was described in
Plesiadapis UMMNH
Life restoration at MUSE - Science Museum in Trento
P. cookei compared to Notharctus tenebrosus (left), an early true primate. Both come from Eocene Wyoming, though the latter is slightly geologically younger.
Restoration
Notharctus
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Notharctus is a genus of adapiform primate that lived in North America during the early to middle Eocene. Known from many geologic formations, including the Bridger Basin and the Devil's Graveyard For
Plesiadapis
…are better preserved in fossils from Cernay, also in France, where Plesiadapis is one of the most common mammals. Classification P. cookei compared to Notharctus tenebrosus (left), an early true primate. Both come from Eocene Wyoming, though the latter is slightly geologically younger. The following are possible shared…
Notharctus AMNH
Notharctus tenebrosus from William K. Gregory's 1920 monograph on the anatomy of the genus
Skull of N. tenebrosus
The teeth of N. rubustior