190 OCCURRENCE OF 



MAMMALIA. 



Anthracotherium P Small species, a molar tooth. 



Lophiodon. Perhaps two species ; four inferior molar teeth, one inferior 



canine tooth. One femur^ one vertebra (atlas) not determinable, perhaps 



of a rodent or carnivorous animal. 



As I believe the occurrence of ophidian remains is rather 

 remarkable in the eocene series, the figure of the only one 

 specimen which I have found is annexed. ' 



This deposit presents a striking analogy with that described 

 by M. Chas. D'Orbigny, at Meudon. In both places, the 

 strata containing these terrestrial reliquice, have evidently 

 been produced by a river action more violent than that which 

 has accumulated the accompanying strata. At the same 

 time their superposition is not precisely the same, as may be 

 seen by the following section given by M. Chas. D'Orbigny, 

 of the Hill of Meudon. 



Ft. In 



1. Calcaire grassier 46 2 



f 6 6 



2. Plastic clay, mottled red, grey,&c \ to 



I 26 2 



3. White marl, with a few calcareous nodules 1 2 



4 . liignite, with larg e Paludince and Anodonta 1 4 



5. Finely laminated clay, with crystals of selenite, and layers of 



ferruginous sandstones „ 8 



6. Conglomerate of plastic clay, with pebbles of chalk and piso- 



litic limestone, sometimes 10 inches in diameter, enclosing 

 remains of Mammalia, fishes, with marine and fluviatile 

 shells 1 6 



7. Yellowish, slightly coherent, calcaire grassier, with numerous 



fossils, amongst which occurs the Cerithium giganteum 4 7 



8. Laminated marl, with pectens „ 2 



9. Calcaire grassier, with numerous fossils, chalk, hard and yel- 



lowish, with irregular layers of flints, and numerous fossils. 4 11 



• Mr. Owen has lately described to the Geological Society the remains 

 of a mammal, somewhat allied to the Chceropotamus and Peccari, found 

 by Mr. Richardson in the lower part of the London clay, at Heme Bay, 

 which would thus bring it to about the same age as theEpernay specimen. 

 He likewise gave an account of a series of vertehrcje from the London clay 

 of the Isle of Sheppey, in the fine collection of Mr. Bowerbank, which he 

 considered to belong to a large serpent, and has named it Palaophis 

 tolypeules. 



