Orrorin tugenensis

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Orrorin
Temporal range: Miocene
Orrorin tugenensis fossils
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Family: Hominidae
Subfamily: Homininae
Genus: Orrorin
Senut et al., 2001
Binomial name
Orrorin tugenensis
Senut et al., 2001

Orrorin is considered to be the second-oldest known hominin ancestor that is possibly related to modern humans. Only one species is known: Orrorin tugenensis. The name was given by the discoverers who found Orrorin fossils in the Tugen Hills of Kenya. The fossils were found were estimated to date between 6.1 and 5.8 million years ago, during the late Miocene.