146 
Geology op Sydney. 
We have more than once referred to the fact that 
the age to which the Hawkesbury- Wianam atta series 
belongs, has been termed the “age of reptiles / 5 Not 
that abundant life other than reptilian was unreprc- 
FrG. 30. — Stratified Triassic Reds exposed in a Railway Cutting, 
Gosford. 
sen ted, but the reptiles are par excellence the dis- 
tinguishing fossils. It is true that none of the remains 
of the better known of these enormous reptiles have so 
far been found associated with oar Labyrinthodont & 
It is more than probable, however, that such remains 
