Ch. XX.] MAMMALLi ANTERIOR TO PARIS GYPSUM. 



387 



Number and Distribution of all the known Species of Fossil Mam- 

 malia from Strata older than the Paris Gypsum, or than the 

 Bembridge Series of the Isle of Wight. 



Secondary. 



Tertiary. -i 



Primary. 



Headon Series an'd Beds between the 

 Paris Gypsum and the Gres de Beau- 

 charnp, . - - - 



Barton Clay and Sables de Beauchamp, 



Bagshot Beds, Calcaire Grossier, and 

 Upper Soissonnais of Cuisse-Lamotte,. 



London Clay, including the Kyson Sand, 



Plastic Clay and Lignite, 



Sables de Bracheux, 



Thanet Sands and Lower Landenian of 

 Belgium, - - - - 



' Maestricht Chalk, - 

 White Chalk, 

 Chalk Marl, 

 Upper Greensand, - 

 Gault, .... 



Lower Greensand, -._"•_ 

 Weald Clay, &c, - 

 Hastings Sand, - 



Upper Purbeck Oolite, 

 Middle Purbeck Oolite, 

 Lower Purbeck Oolite, 

 Portland Oolite, ... 

 Kimmeridge Clay, - 

 Coral Rag, - - - 



Oxford Clay, 



Great Oolite, ... 



Inferior Oolite, - 

 Lias, .... 



Upper Trias, ... 



Middle, .... 

 [ Lower, .... 



f Permian, - - 



J Carboniferous, 

 | Silurian, - 

 ^ Cambrian, - - - - 



14 



20 



1 

 9 

 1 

 



10 English. 

 4 French. 



16 French. . 



1 English. 



3 U. States * 

 All English. 

 7 French. 



2 English. 

 French. 





 

 

 

 

 

 

 

 



14 Swanage. 

 

 

 

 

 



4 Stonesfield. 

 



( Wurtemberg. 

 4 < Somersetsh. 

 ~ ( N". Carolina. 









 

 

 



In drawing up the above table I have been assisted by Professor Owen in refer- 

 ence to the British, and by MM. Lartet and Hebert in reference to the fossil mam- 

 malia of the French Eocene strata. There are, besides, several undescribed species 

 in the collection of the two last-mentioned palaeontologists, or in museums known 

 to them ; and, in regard to one or two of the Eocene continental localities out of 

 the Paris basin, the age of the deposits is too little known to allow us to include 

 their fossils in the table. 



The Sables de Bracheux, enumerated in the Tertiary division of the table, sup- 

 posed by Mr. Prestwich to be somewhat newer than the Thanet Sands, and by M. 

 Hebert to be of about that age, have yielded at La Fere the Arctocyon (Palwocyori) 

 primcevits, the oldest known tertiary mammal. 



* I allude to several Zeuglodons found in Alabama, and referred by some zoolo- 

 gists to three species. 



