572 



CENOZOIC TIME. 



Fishes.— Teliosts 



Ganoids, Heterocercal 

 Homocercal 

 Selachians 



Cestracionts 



Hybodonts, 



Squalodonts (Modem Sharks) 



Reptiles 



Labyrinthodonts 

 ) ( Thecodonts. 

 Enaliosaurs 

 Pterosaurs 

 Dinosaurs.... 

 Crocodilians 

 Genus Crocodilus 

 Chelonians, or Turtles 



Birds 



Mammals, exclusive of Man 

 Marsupials 

 Insectivores 

 Rodents 

 Edentates 

 Chiropters or Bats 

 Cetaceans. 

 Herbivores 



Perissodactyls. 



Artiodactyls 



Pachyderms 



Proboscidians (Elephant, etc.) 



Ruminants, Stag family 



Bovine, or Ox family 



Carnivores 



Quadrumana, or Monkeys 



