Kay Richard F, Cozzuol Mario Alberto
Department of Biological Anthropology and Anatomy, Duke University, Durham, NC 27710, USA.
J Hum Evol. 2006 Jun;50(6):673-86. doi: 10.1016/j.jhevol.2006.01.002. Epub 2006 Mar 10.
We report here a new fossil primate from the late Miocene of Brazil. The material consists of a lower first molar and a maxilla with P3-4. The fossils were collected in the Solimões Formation at the locality of Patos, upper Acre River, Acre State, Brazil. The locality is assigned to the Huayquerian South American Land Mammal Age based on faunal content (late Miocene; dated to between 9 and 6 Ma). The new material is the oldest known occurrence of fossil primates in Brazil and is recognized as a new genus and species, Solimoea acrensis. Solimoea is the oldest known member of the ateline subfamily, which includes the living genera Ateles, Lagothrix, and Brachyteles. By analogy with the molar structures and diets of extant platyrrhines, Solimoea primarily had a diet of fruit, perhaps similar to that of the spider monkey, Ateles. Two other primate teeth described previously from the same formation in Bolivia document the occurrence of alouattines and cebines. One of those specimens is a late Miocene representative of the middle Miocene Colombian genus Stirtonia. The other represents one of the largest known platyrrhine primates, for which is erected a new primate genus, Acrecebus fraileyi.
我们在此报告一种来自巴西晚中新世的新化石灵长类动物。该材料包括一枚下第一磨牙和一块带有P3 - 4的上颌骨。这些化石是在巴西阿克里州上阿克里河帕托斯地区的索利蒙伊斯组采集的。根据动物群成分（晚中新世；年代测定为900万至600万年前），该地区被归为南美哺乳动物时代的瓦伊奎尔阶。新材料是巴西已知最古老的化石灵长类动物，被认定为一个新属新种，即阿克里索利莫猴（Solimoea acrensis）。索利莫猴是绒毛猴亚科已知最古老的成员，该亚科包括现存的绒毛猴属（Ateles）、长毛吼猴属（Lagothrix）和绒毛蛛猴属（Brachyteles）。通过与现存阔鼻猴类的臼齿结构和饮食进行类比，索利莫猴主要以水果为食，可能类似于蜘蛛猴（Ateles）。之前在玻利维亚同一地层中描述的另外两颗灵长类牙齿记录了绒毛猴类和僧面猴类的存在。其中一个标本是中新世中期哥伦比亚斯特蒂尼亚属（Stirtonia）的晚中新世代表。另一个代表了已知最大的阔鼻猴类灵长类动物之一，为此建立了一个新的灵长类属，即弗氏阿克雷猴（Acrecebus fraileyi）。
