OUR FACE FROM FISH TO MAN 



primitive anthropoid type and the process of 

 reduction and infantihzation may well have taken 

 place during the millions of years of the Lower 

 Pliocene epoch, at a period when the fossil record 

 of human remains so far discovered is still blank. 



The great mass of collateral evidence for the 

 derivation of man from primitive anthropoids with 

 well developed but not greatly enlarged canines, 

 has been reviewed lately with great thoroughness 

 by Remane, who finds no justification for the 

 view that man has avoided the primitive anthro- 

 poid stage and has been derived from wholly 

 unknown forms with the canine tips not projecting 

 much beyond the level of the premolars. 



When the skull of a chimpanzee (Fig. 35F) and 



the skull of a high type of man (Fig. 43D) are 



viewed from above, the ape is seen to differ widely 



from man in the marked projection of his muzzle. 



This projection is less in female anthropoids with 



smaller teeth and still less in early foetal anthropoid 



stages before the tooth-germs are formed. On the 



other hand, savage types of man with very large 



teeth have a correspondingly prominent muzzle, 



especially if the molar and premolar teeth have 



large fore-and-aft diameters, as in the fossil 



142 



