

388 



PALEOZOIC TIME. 



SILURIAN. 



DEV. CARB 



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 



Lepidopters, Dipters, Hymenopters, etc 



VERTEBRATES. 



Fishes 



Ganoids 



Selachians 



Cestracionts 



Hybodonts 



Teliosts 



Amphibians 



Ordinary 



Labyrinthodonts 



Reptiles 



Lacertians 



Enaliosaurs 



Crocodilians 



Birds : Mammals 



P. Pd. 







s.| c. |p. 



nr 



"! 



i 



