19 
Fig. 6. 
Homalonotus and Lichas 
Phillipsia, Griffithides 
Phyllopoda 
Cyclops Tribe (Eurypterus, etc.).. 
TETRADECAPODS 
Isopoda 
Amphipoda 
Decapods 
SchizopodS 
Macrurans and Anomurans 
Brachywana 
Hyriapods 
Spiders 
Inserts . . . - 
Neuropters Orthopters 
Beetles 
Lepidopters 
I DEV. CARB. 
P. Pd. 
VERTEBRATES. 
I' Mies 
Ganoids 
Selachians 
Cestiacionts. 
Hybodonts 
Teliosts 
Amphibians 
Ordinary 
Labyrinthodonts 
Reptiles 
Lacertians 
Enaliosaurs 
Crocodilians 
Birds: Mammals , 
fc 
