Nomenclature of Geological Age. 



167 



Table II. 



Still in the face of this we find Cambro-Silurian used by 

 Tasmanian geologists with a different signification, and again in 

 Canada it is used in some of the Geological Survey Reports with 

 anything but a clear signification. We have then even on this 

 cursory examination a rather peculiar mixture of terms as may 

 be seen from an examination of Table III., and with regard to 

 the interpretation of them, that seems to be a purely optional 

 matter. 



Table III. 



Cainozoic 



or 

 Tertiary 



Recent 

 Pleistocene 

 Pliocene 

 Miocene 

 Eocene - 



Cretaceous 



Mesozoic [ 



^^ "> Jurassic 

 ?riassic 



or \ Jur; 

 Secondary [ "jj-jj 



Oligo-eocene. 



f Cretaceo-Tertiary. 



\ Cretaceo-Eocene. 



f Super-Cretaceous. 



\ Supra-Cretaceous. 

 -\ j Jura-Trias. 

 -/ \ Trias-Jura. 



