CONTENTS 



CHRONOLOGY . 

 INTRODUCTION 



FOUNDATIONAL AGES 



CAMBRIAN PERIOD 

 ORDOVICIAN PERIOD 

 SILURIAN PERIOD 

 DEVONIAN PERIOD 

 CARBONIFEROUS PERIOD 

 PERMIAN PERIOD 



TRIASSIC PERIOD 

 JURASSIC PERIOD 

 CRETACEOUS PERIOD 



PALEOZOIC AGE 



MESOZOIC AGE 



CAINOZOIC AGE 



EOCENE PERIOD 



OLIGOCENB PERIOD 



MIOCENE PERIOD 



PLIOCENE PERIOD, EARLIER EPOCH 



PLIOCENE PERIOD, LATER EPOCH 



QUATERNARY AGE 



PLEISTOCENE PERIOD 

 PRESENT PERIOD 



AUTHORITIES CONSULTED 

 GENERAL INDEX 



APPENDIX 



fA'.K 



XV 



I 

 7 



16 



21 



28 

 38 

 50 



61 



70 

 82 

 98 



116 

 140 



'54 

 169 

 182 



189 



211 



317 

 227 



IX 



