1890.] NATURAL SCIENCES OF PHILADELPHIA. 51 



A REVIEW OF THE CERNAYSIAN MAMMALIA. 

 BY HENRY FAIRFIELD OSP.ORN. 



This remarkably interesting mammalian fauna of the lower Eocene 

 of France has been derived exclusively from a small exposure of the 

 Conglomerat de Cernay near Rheims and described in numerous 

 papers by Dr. Victor Lemoine, Professor in the Ecole de Med- 

 ecine de Reims. The collection is in the private museum of this 

 author and his contributions are scattered through various French 

 periodicals between 1878 and 1888. The Cernaysian fauna, it thus 

 happens, is not thoroughly known or appreciated abroad except by 

 those who have had the good fortune to examine the original types. 

 The fossils are, for the most part, in beautiful preservation and the 

 skulls of Ardocyon, Pleuraspidotherium and other forms are finer 

 than anything known from European strata of corresponding age. 

 The abundance of the Insectivora is especially notable, for these beds 

 promise to throw as much light upon the early history of this order 

 as the Puerco rocks do upon the Ungulata and Creodonta. 



In course of two visits to Rheims I have collected the following 

 brief studies and original sketches for publication, after a careful 

 comparison of my own observations with those published by Dr. 

 Lemoine. I wash to express my high appreciation of the value of 

 the paleon to logical discoveries of this author and my personal in- 

 debtedness for the privilege of freely examining his collection. 



Articles upon the Cernaysian Mammalia, Lemoine, 1878-88. 



('78a.) "Communication sur les Ossements Fossiles des Terrains Tertiaires In- 



ferieures des Environs de Reims." Sec. d'Histoire Naturelle de Reims, 



May 8th, 1878. 

 ('78b.) " Recherches s. 1. Ossem. Fo.ss. d. Terr. Tert. Infer, d. Reims ; ]re par- 

 tie, Etude du genre Arctocyon." Ann. des Sc. Naturelies, July 1878, T. 



VIII. 

 ('79a.) " Comm. s. 1. Ossem. Foss. des Terr. Tert. Infer, d. Env. d. Reims;" 



Assoc. Franc, p. I'Avancement des Sciences, August, 1879. Reprinted, 



Rheims, 1880. 

 ('80a.) " Terrains Tertiaires des Environs de Reims." Assoc. Franc, p. 1. Avanc. 



d. Sc; Reims, 1880. 

 ('82a.) " Sur I'Encephale de P Ardocyon Duellii et du Pleiiraspidotherium An- 



inonieriP Bull. d. 1. Soc. Geo!, de France, 3e Serie, t. x, April, 1882. 



See also Comptes Rendus, April, 1882. 

 ('82b.) " Sur deux Pla^iaulax tertiaires, recuellis a. Env. d. Reims." Comptes 



Rendus, Nov. 20th, 1882. 



1 The list of papers relating to the Reptilian and Avian fauna of Cernay is 

 equally extensive. 



