Reconstruction of the Dental Arcades of Ramapithecus wickeri
Reconstruction of the Dental Arcades of Ramapithecus wickeri
复制标题
威氏腊玛古猿牙廊的重建
作者：
A. Walker;P. Andrews
Ramapithecus是目前被认为可能与人类直系祖先接近的少数人科物种之一。Ramapithecus和后来的原始人之间最显著的相似之处之一是抛物线齿弓的假设存在。鉴于这些尚不完全清楚的物种所假设的重要进化地位，我们对肯尼亚物种的下颌骨和面部下部进行了重建。wickeri（Leakey）2，3.以前的重建尝试4 - 6都是不必要的，因为没有牙列分叉的中线点。R. wickeri（KNM-FT 45）3是本种及其近缘种的唯一标本。punjabicus（朝圣者），在任何一点上都保留了中线。它也可能与上颌骨标本（KNM-FT 46）有关。
SPECIES ofRamapithecusare among the few hominoid species currently considered as possibly close to the direct line of human ancestry. One of the most striking resemblances betweenRamapithecusand later hominids is the supposed presence of parabolic dental arcades1. In view of the important evolutionary position postulated for these imperfectly known species we have made a reconstruction of the mandible and lower part of the face of the Kenyan speciesR. wickeri(Leakey)2,3. Previous attempts at reconstruction4–6have been necessarily conjectural because there were no midline points upon which tooth row divergence could be based. The mandible ofR. wickeri(KNM-FT 45)3is so far the only specimen of this species, or of the closely relatedR. punjabicus(Pilgrim), that has the midline preserved at any point. It is also likely that it is associated with the maxilla specimen (KNM-FT 46).