150 UNGULATA order vii 



with three long slender toes. Abundant in the Upper Eocene of Europe. 



A 



^ ^ m' rv'' n^ «2 



A P' /?' 



Az /^j A* '^ 



Paloplotherium minus Cuvier. Upper Eocene (Lignite), Debruge. A, Upper dentition. 

 B, Lower dentition. 2/3. 



P. annedens Owen. P. minus Cuvier. P. hippoides Fraas. Eare in the 

 Oligocene of Ronzon, and Bohnerz of Sigmaringen. P. ovintim Aymard. 



Subfamily 2. Palaeotheriinae Gerard. 



Orbits wide open posteriorly. Cheek teeth brachyodont, with several roots. The 

 three posterior premolars molariform in the later species. Superior molars with 



W-shaped edoloph and two 



oblique transverse ridges. The 



contiguous inner ends of the 



^^^^\ ydrt^^SsS^^ two crescents of the lower 



\*MrO\/^^^^^^ molars form a simple cone. 



, Manus and pes short and 



\/ robust, tridactyl, the lateral 



digits reaching the ground 



and not much more slender 



than the middle digit. 



Eocene ; Europe. 



Palaeotherium Cuvier 



(Figs. 202-204). Dental 



3.1.4.3. 



Palaeotherium magnum Cuvier. Upper Eocene, Paris. 

 Original restoration by Cuvier. 



formula 



With 



3.1.4.3. 



the exception of the small triangular first premolar, superior molars and 

 premolars similar. Ectoloph W-shaped, consisting of two united crescents ; 

 internal cusps joined to the ectoloph by oblique transverse ridges. With the 

 exception of the first premolar, inferior cheek teeth composed of two crescents, 

 which at their union form a simple tubercle ; third molar with three crescents. 

 Incisors chisel-shaped ; canines conical. Carpals rather long and narrow. Of 

 the thi'ee metacarpals, which are subequal in length, the median one is 

 but little more robust than the lateral ones. The three digits terminate 



