Anthropoid Origins in Asia? New Discovery of Amphipithecus from the Eocene of Burma
Anthropoid Origins in Asia? New Discovery of Amphipithecus from the Eocene of Burma
复制标题
类人猿起源于亚洲？
作者：
R. Ciochon;D. E. Savage;THAW TINT;BA Maw
缅甸始新世晚期灵长类蒙冈古猿科尔伯特 (Amphipithecus mogaungensis Colbert) 的新化石表明，该物种的下颌和臼齿形态与渐新世和渐新世后的高等灵长类动物非常相似。它有一个特别深的下巴。它的短弓齿第一和第二磨牙有光滑的牙釉质，但缺乏下圆锥。它的第二臼齿的形状几乎是方形的——这是高等灵长类动物的高级特征。 Amphipithecus mogaungensis 和相关分类群 Pondaungia cotteri Pilgrim 是已知最早的高等灵长类动物。他们认为东南亚是高等灵长类动物多样化的早期战场。
A new fossil of the primate Amphipithecus mogaungensis Colbert from the late Eocene of Burma shows that this species has a mandibular and molar morphology very similar to Oligocene and post-Oligocene higher primates. It has an exceptionally deep jaw. Its brachybunodont first and second molars have smooth enamel but lack hypoconulids. The shape of its second molar is nearly square—an advanced higher primate feature. Amphipithecus mogaungensis and related taxon Pondaungia cotteri Pilgrim are the earliest known higher primates. They suggest that Southeast Asia was an early theater of higher primate diversification.