270 



PRIMATES 



talon. Third molar smaller than second. Upper Eocene ; Swabian Bohnerz. 

 C. sideroUthicus Schlosser. Oligocene (Brown Coal), near Darmstadt. 



Promjdicebiis Grandidier. First and second upper premolars very small, 

 third and fourth bitubercular. Molars tritubercular. Eocene (Phosphorites); 

 Quercy. P. gaudryi Grand. 



Periconodon Stehlin. Third upper premolar with one tubercle. Upper 

 molars with one slight intermediate tubercle and two strong inner basal 

 tubercles. Eocene (Bohnerz) ; Egerkingen. 



Aphanolemur Granger and Gregory. Skull much resembling that of Adapis. 

 Middle Eocene (Bridger beds) ; Wyoming. 



Adapis Cuvier (Palaeolemur Filhol ; Aphel other ium, Leptadapis Gervais) 



(Fig. 355). Dental formula: ' ' ' ' • Dental series continuous. Superior 



molars with two pyramidal external tubercles, a V-shaped protocone and 

 smaller conical hypocone ; sometimes, also, with a diminutive intermediate 

 conule on the anterior border. Fourth upper premolar tritubercular, the three 

 anterior premolars compressed, monocuspid, with strong 

 internal talon-like basal cingulum. Upper canine laterally 

 compressed, pointed, with trenchant anterior and posterior 

 margins, more or less strongly protruding. Upper incisors 

 small, spatulate, with short crown. Inferior incisors small, 

 directed obliquely forward, chisel-shaped. Inferior canine 

 stout, with truncated apex. The three anterior premolars 

 compressed, the first two with a single root, the third two- 

 rooted. Fourth premolar and molars with two pairs of 

 cusps obliquely opposite, united by a ridge. Upper 

 Eocene ; Gypsum of Montmartre, Phosphorites of Quercy, 

 and freshwater marls of St. Hippolyte de Caton, Gard. 

 A. parisiensis Cuvier, A. magnus Filhol. Latter species 

 also in Upper Eocene, Hordwell, Hants. 



Notharcfus Leidy (Tomifherium Cope ; Thinolestes, Lim- 

 nothcrinm and Telmatolestes Marsh). Inferior molars with 

 low crown, broad talon, and rugose enamel. Eocene (Wind River beds) ; 

 North America. N. venticolus Osborn. Bridger beds. N. rostratus Cope. 



Caenopifhecus Riitimeyer (Fig. 356). The only superior molars known 

 have quadrate crowns and consist of two blunt pyramidal external cusps, a 

 V-shaped or subcrescentic internal tubercle, another very small postero-internal 

 conule close to the basal cingulum, and a diminutive intermediate conule on 

 the anterior border. Third molar only a little less inferior in size to the 

 penultimate molar. C. lemuroides Riitimeyer. Bohnerz ; Egerkingen. 



Fig. 356. 



Caenopithecus lemuroides 

 Riitimeyer. Eocene 

 (Bohnerz), Egerkingen. 

 Three upper molars. A, 

 Outer aspect. 25, Grinding 

 surface, i/i. (After 

 Riitimeyer.) 



Family 2. Anaptomorphidae Cope. 



Dental formula : 



3-2.1. 3. 3. 



Incisor and canine teeth normal, but relatively 



2-1.1.2-4.3. 



small. Inferior premolars short and stout. Superior molars trituhercular or 

 quadritubercular, toith small intermediate cusps. Skull hr achy cephalic ; lachrymal 

 foramen lying in front of the very large orbit. Rami of the mandible not anchylosed 

 at the symphysis. Eocene ; Europe and North America. 



