266 THEORY OF THE EARTH. 



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as having lived together, but perhaps in different 

 spots, the animals whose bones are deposited in 

 the molasse and old gravel beds of the south of 

 France ; in the gypsums mixed with limestone, 

 such as those of Paris and Aix ; and in the fresh- 

 water marly deposits covered with marine beds, of 

 Alsace, the country of Orleans and of Berry. 



This animal population possesses a very remark- 

 able character in the abundance and variety of 

 certain genera of pachydermata, which are entirely 

 awanting among the quadrupeds of our days, and 

 whose characters have more or less resemblance 

 to those of the tapirs, the rhinoceroses, and ca- 

 mels. 



These genera, the entire discovery of which is 

 my own, are the palceotheria, lophiodonta, ana- 

 plotheria, anthracotheria, cheropotami, and ada- 

 pis. 



The Palceotheria have resembled the tapirs in 

 their general form, and in that of the head, parti- 

 cularly in the shortness of the bones of the nose, 

 which announces that they have had a small pro- 

 boscis like the tapirs, and, lastly, in their having 

 six incisors and two canine teeth in each jaw ; but 

 they have resembled the rhinoceros in their grin- 

 ders, of which those of the upper jaw have been 

 square, with prominent ridges of various configura- 

 tion, and those of the lower jaw in the form of dou- 

 ble crescents, as well as in their feet, all of which 



