388 



PALEOZOIC TIME. 



Homalonotus and Lichas. . . 



Phillipsia, Griffithides 



Phyllopods 



Cyclops Tribe (Eurypterus, etc. 



Tetradecapods 



Isopods 



Amphipods 



Decapods 



Schizopods 



Macrurans and Anomurans . . 



Brachyurans 



Myriapods 



Spiders 



Insects , 



Neuropters, Orthopters 



Beetles 



Lepldopters, Dipters, Hymenopters 



VERTEBRATES 



Fishes 



Ganoids 



Selachians 



Cestracionts. . . . 



Hybodonts 



Reptiles , 



Amphibians 



Ordinary 



Labtrinthodonts 

 True Reptiles .... 

 Lacertians. . . . 

 Enaliosaurs . . 

 Crocodilians. . 

 Birds : Mammals. . 





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