Dictionary of Human Evolution and Biology

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Amphipithecus Mogaungensis Colbert, 1937

Fossil primate from the late Eocene (44-40 mya) of Burma, recovered in 1923. The holotype consists of a left mandibular fragment that contains the third and fourth premolars, plus the first molar. Systematics are contentious owing to mosaic of primitive and derived traits. Some researchers think that Amphipithecus is an adapid, others consider it a transitional form between adapids and higher primates, and yet others think it is an early anthropoid. Even an omomyid affinity has been suggested. Amphipithecus has deep, fused mandibles, which is a characteristic of the adapids as well as of higher primates. The anthropoid character is the low-crowned molars, and suggests folivory. Body mass estimate 9 kg.

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