A new fauna has been collected from a fissure filling named Cos in the Quercy region, southwestern France. It includes four primate species and a plesiadapiform. The cercamoniine adapiform Protoadapis andrei Godinot and Vidalenc, nov. sp., is represented by material that adds to our knowledge of the genus Protoadapis for the upper canine, upper molars and other morphological details. It appears more primitive than P. brachyrhynchus from the Old Quercy Collections. The other cercamoniine Pronycticebus cosensis Godinot and Vidalenc, nov. sp., offers insight on intraspecific variations and other details of the genus. Both species suggest a bushy evolution within these genera. Two teeth document the presence of a third cercamoniine, Anchomomys sp. indet. The new microchoerid Quercyloris eloisae Godinot and Vidalenc, nov. gen., nov. sp., has very primitive characters and seems to document a primitive member of the Pseudoloris clade. A poorly documented paromomyid plesiadapiform is distinct enough to be named Arcius moniquae Godinot and Vidalenc, nov. sp. It represents the first discovery of a plesiadapiform in the Quercy fossil record and makes a link with paromomyids surviving until the late Lutetian European Mammal Paleogene MP 13 reference level. The primates indicate a broad age interval between MP 10 (late Ypresian) and MP 12 (mid-Lutetian). The identification of the same species of Pronycticebus and of the new genus in the Vielase fauna suggests more precisely the MP 10–MP 11 (late Ypresian–early Lutetian) time interval.

在法国西南部 Quercy 地区的一个名为 Cos 的裂缝填充物中收集到了一种新的动物群。它包括四种灵长类动物和一种蛇颈类动物。cercamoniine adapiform Protoadapis andrei Godinot 和 Vidalenc，11 月。sp. 的代表材料增加了我们对Protoadapis属的上犬齿、上臼齿和其他形态细节的了解。它看起来比来自 Old Quercy Collections 的P. brachyrhynchus更原始。其他 cercamoniine Pronycticebus cosensis Godinot 和 Vidalenc，11 月。sp.，提供有关该属的种内变异和其他细节的见解。这两个物种都表明在这些属中发生了浓密的进化。两颗牙齿记录了第三种cercamoniine的存在，凤尾鱼sp. 插入。新的微科动物Quercyloris eloisae Godinot 和 Vidalenc，11 月。将军，十一月 sp.，具有非常原始的特征，似乎记录了Pseudoloris进化枝的原始成员。一个记录不足的paromomyid plesiadapiform足够明显，被命名为Arcius moniquae Godinot 和Vidalenc，11 月。sp. 它代表了 Quercy 化石记录中首次发现 plesiadapiform，并与存活到 Lutetian 晚期欧洲哺乳动物古近纪 MP 13 参考水平的paromomyids 建立了联系。灵长类动物表明 MP  10（伊普勒斯晚期）和 MP 12（鲁特西亚中期）之间的年龄间隔很宽。Pronycticebus同种的鉴定 和 Vielase 动物群中的新属更准确地表明 MP 10-MP 11（伊普勒西亚晚期 - 卢特阶早期）时间间隔。