![]() The youngest of the Miocene hominoids, Oreopithecus, is from coal beds in Italy that have been dated to 9 million years ago. The presence of other generalized non-cercopithecids of Middle Miocene from sites far distant- Otavipithecus from cave deposits in Namibia, and Pierolapithecus and Dryopithecus from France, Spain and Austria-is evidence of a wide diversity of forms across Africa and the Mediterranean basin during the relatively warm and equable climatic regimes of the Early and Middle Miocene. Among the genera thought to be in the ape lineage leading up to 13 million years ago are Proconsul, Rangwapithecus, Dendropithecus, Limnopithecus, Nacholapithecus, Equatorius, Nyanzapithecus, Afropithecus, Heliopithecus, and Kenyapithecus, all from East Africa. Fossils at 20 million years ago include fragments attributed to Victoriapithecus, the earliest Old World monkey. In the Early Miocene, about 22 million years ago, the many kinds of arboreally adapted primitive catarrhines from East Africa suggest a long history of prior diversification. Reconstructed tailless Proconsul skeleton In 2010, Saadanius was described as a close relative of the last common ancestor of the crown catarrhines, and tentatively dated to 29–28 mya, helping to fill an 11-million-year gap in the fossil record. Its ancestry is thought to be species related to Aegyptopithecus, Propliopithecus, and Parapithecus from the Faiyum, at around 35 mya. The earliest known catarrhine is Kamoyapithecus from the uppermost Oligocene at Eragaleit in the northern Great Rift Valley in Kenya, dated to 24 million years ago. The surviving tropical population of primates-which is seen most completely in the Upper Eocene and lowermost Oligocene fossil beds of the Faiyum depression southwest of Cairo-gave rise to all extant primate species, including the lemurs of Madagascar, lorises of Southeast Asia, galagos or "bush babies" of Africa, and to the anthropoids, which are the Platyrrhines or New World monkeys, the Catarrhines or Old World monkeys, and the great apes, including humans and other hominids. Begun concluded that early primates flourished in Eurasia and that a lineage leading to the African apes and humans, including to Dryopithecus, migrated south from Europe or Western Asia into Africa. Notharctus tenebrosus, American Museum of Natural History, New Yorkĭavid R. Other similar basal primates were widespread in Eurasia and Africa during the tropical conditions of the Paleocene and Eocene. ![]() One of the oldest known primate-like mammal species, the Plesiadapis, came from North America another, Archicebus, came from China. The evolutionary history of primates can be traced back 65 million years. The Homo genus is evidenced by the appearance of H. habilis over 2 mya, while anatomically modern humans emerged in Africa approximately 300,000 years ago. Hominins (including the Australopithecine and Panina subtribes) parted from the Gorillini tribe ( gorillas) between 8–9 mya Australopithecine (including the extinct biped ancestors of humans) separated from the Pan genus (containing chimpanzees and bonobos) 4–7 mya. African and Asian hominids (including orangutans) diverged about 14 mya. Primates produced successive clades leading to the ape superfamily, which gave rise to the hominid and the gibbon families these diverged some 15–20 mya. Primates diverged from other mammals about 85 million years ago ( mya), in the Late Cretaceous period, with their earliest fossils appearing over 55 mya, during the Paleocene. The study of the origins of humans, also called anthropogeny, anthropogenesis, or anthropogony, involves several scientific disciplines, including physical and evolutionary anthropology, paleontology, and genetics. This process involved the gradual development of traits such as human bipedalism, dexterity and complex language, as well as interbreeding with other hominins (a tribe of the African hominid subfamily), indicating that human evolution was not linear but weblike. Human evolution is the evolutionary process within the history of primates that led to the emergence of Homo sapiens as a distinct species of the hominid family, which includes all the great apes. The hominoids are descendants of a common ancestor. Evolutionary process leading to anatomically modern humans ![]()
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