Williams B A, Covert H H
Department of Anthropology, University of Colorado, Boulder 80309-0233.
Am J Phys Anthropol. 1994 Mar;93(3):323-40. doi: 10.1002/ajpa.1330930305.
Recent paleontological collecting in the Washakie Basin, southcentral Wyoming, has resulted in the recovery of over 100 specimens of omomyid primates from the lower Eocene Wasatch Formation. Much of what is known about anaptomorphine omomyids is based upon work in the Bighorn and Wind River Basins of Wyoming. This new sample documents greater taxonomic diversity of omomyids during the early Eocene and contributes to our understanding of the phylogeny and adaptations of some of these earliest North American primates. A new middle Wasatchian (Lysitean) anaptomorphine, Anemorhysis savagei, n. sp., is structurally intermediate between Teilhardina americana and other species of Anemorhysis and may be a sister group of other Anemorhysis and Trogolemur. Body size estimates for Anemorhysis, Tetonoides, Trogolemur, and Teilhardina americana indicate that these animals were extremely small, probably less than 50 grams. Analysis of relative shearing potential of lower molars of these taxa indicates that some were primarily insectivorous, some primarily frugivorous, and some may have been more mixed feeders. Anaptomorphines did not develop the extremes of molar specialization for frugivory or insectivory seen in extant prosimians. Incisor enlargement does not appear to be associated with specialization in either fruits or insects but may have been an adaptation for specialized grooming or food manipulation.
最近在怀俄明州中南部的瓦萨基盆地进行的古生物学采集工作，已从始新世早期的瓦萨奇组中采集到了100多件兔猴科灵长类动物标本。目前已知的关于兔猴亚目兔猴科动物的大部分信息都基于在怀俄明州大角盆地和温德河盆地开展的研究。这个新样本记录了始新世早期兔猴科动物更丰富的分类多样性，并有助于我们了解这些北美最早的灵长类动物中的一些物种的系统发育和适应性。一种新的瓦萨奇中期（利西特期）兔猴亚目动物，萨维奇风猴（Anemorhysis savagei），新物种，在结构上介于美洲德氏猴（Teilhardina americana）和其他风猴属物种之间，可能是其他风猴属和洞狐猴属（Trogolemur）的姐妹类群。对风猴属、提顿狐猴属（Tetonoides）、洞狐猴属和美洲德氏猴的体型估计表明，这些动物极其微小，可能体重不足50克。对这些分类群下臼齿相对剪切潜力的分析表明，一些动物主要以昆虫为食，一些主要以果实为食，还有一些可能是更杂食性的。兔猴亚目动物并未发展出现存原猴类中所见的极端的臼齿特化以适应食果或食虫习性。门齿增大似乎与果实或昆虫的特化无关，但可能是一种适应专门梳理毛发或处理食物的特征。
