W. D. Matthew — Cernaysian Mammal Fauna. 511 



place at the end of the Lower Eocene and that it endured 

 np to the Oligocene. It is therefore more remarkable 

 under these circumstances to encounter in the Quercy 

 Phosphorites (especiall}^ at Memerlein, Dep't Lot) a 

 small fauna of clearly American affinities. This fauna^ 

 which can be fixed as of Bartonian or Lower Ludian age 

 by the occurrence of the same forms in the stratified 

 sequence (Hordwell, Euzet, Bouxviller), includes, besides 

 a Sparnacian genus Protoadapis already noticed by Steh- 

 lin, the adaptive Creodont genera Miacis and Viverravus, 

 Chiromyidae (two species of Necrosorex Filli.), and Tar- 

 siids {Pseudoloris, Stehh), all quite nearly related to 

 Miacis, Viverravus, Apatemys and the Anaptomorphids 

 of the American Middle Eocene. So close a resemblance 

 between [these types of] the Bartonian of Europe and the 

 Bridger of America proves that long after the separation 

 of the two continents a common residual fauna, mixed 

 with new elements proper to each region, w^as able to 

 maintain itself and continued to evolve along parallel 

 lines, on the two sides of the ocean. 



^'The Tarsiids of the Phosphorites, of which I have at 

 hand unpublished specimens showing the upper dentition 

 and the bones of the face, are remarkable as showing a 

 closer resemblance to the living Tarsier than any known 

 fossil form. ' ' 



The principal collection of the Cernaysian fauna, 

 including the fossils obtained and~ described by Lemoine 

 in 1878-1893, and important later collections undescribed, 

 are in the Museum de Paleontologie in Paris, and Pere 

 Teilhard's revision was undertaken at the instance of the 

 Director, Prof. Marcellin Boule. On a recent visit to 

 the Paris Museum the writer had the privilege of examin- 

 ing this unique collection, and was much impressed both 

 with the interest of the fauna and with the admirable 

 thoroughness and insight of Pere Teilhard's studies upon 

 it. The Tiffany fauna to which he compares the. Cernay- 

 sian has been only in small part described, but it appears 

 probable that his conclusions will be confirmed by the 

 more cordplete comparisons to be made later. 



