142 



UNGULATA 



ORDER VII 



Europe, R. leptorhinus Cuvier ; India, R. deccanensis and karnulieiisis Lydekker ; 

 and of China, R. sinensis Owen. 



(m) Coelodonta Bronn (Figs. 186-188). r\ (\ <i -i ' ^^sal bones very well 



0.0.3.3. 

 developed, in old forms supported by an ossified mesethmoid 



The anterior 



Fig. 187. 



Coelodonta antiquitatis Blumenb. sp. Pleistocene, Wiiksworth, Derbyshire. Right ramus of lower jaw, 

 outer view. i/g. (After Owen.) 



of the two horns stands on a prominent rough protuberance of the fused 

 nasal bones ; the smaller posterior horn, on the frontal bone. In the later 

 Pliocene, R. etruscus Falconer, probably a descendant of R. schleiermacheri, 

 and in the Pleistocene of North Asia and Europe, R. mercki Jager, 

 in China replaced by plicidens Koken, and R. antiquitatis Blumenbach {R. 



Fig. 188. 



Coelodonta antiquitatis Blumenb. sp. Pleistocene loess, Kronberger Hof, near Kraiburg, Upper Bavaria. 



Skeleton, much reduced. 



tichorhinus Fischer). Entire carcasses of R. mercki and also of R. antiquitatis, 

 with skin, hair and well-preserved tissues, have been found in the frozen 

 ground between the Jenisei and Lena rivers in Siberia and in the ozokerite 

 earth of Starunia, Galicia. They were covered with thiclc woolly hair. The 

 depressions of the cheek teeth contained particles of food, which pertained 

 to conifers and willows. R. mercki, however, became extinct in Europe 

 just before the end of the glacial period, while R. antiquitatis appeared 



