14 



EVOLUTION OF MAMMALIAN MOLAR TEETH 



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Order: Primates Linmeus (p. 157.) 



Sub-order: *Mesodonta Cope (American leinuroids) 

 Examples 



Notharctus 

 Anaptonwrphus 



Sub-order : L e m u r o i d e a Mi v a r t 



Examples 

 Lemurs 

 Galagos 



Aye-Aye (Cheiromys) 

 Tarsier, etc. 



Sub- order : A n t h r o p o i d e a M i v a r t 



I. South American or Platyrrhine monkeys 



Marmosets (Hapalidse) 

 Capuchins, etc. (Cebidte) 



II. Old World or Catarrhme monkeys 



Baboons, Apes (Cercopithecidse) 

 True Monkeys (Semnopithecidse) 

 Anthropoid apes (Simiidse, Gibbon, Gorilla, Chim- 

 panzee) 

 Man (Hominida?) 



( Order: *Condylarthra Cope (p. 168.) 



Examples 

 Protogonodon 

 Euprotogonia 

 Phenacodus 



Order: *Amblypoda Cope (p. 164.) 



Examples 

 Pcriptychus 

 Pantolambda 

 Coryi^hodon 

 Uintatlicrium 



Order : Artiodactyla Owen (" even-toed " hoofed mammals) (p. 



171.) 

 Examples 

 Pigs (Suidce) 



Hippopotami (Hippopotamidse) 

 Deer (Cervidos) 

 Giraffes (Giraffidse) 



* Extinct. 



