77 

 EXCURSION A 12. 



THE PALAEONTOLOGY OF THE GUELPH, 

 ONONDAGA AND HAMILTON FOR- 

 MATIONS IN WESTERN ONTARIO. 



BY 



William A. Parks. 

 With Sections by C. R. Stauffer and M. Y. Williams. 



CONTENTS. 



Page. 



Introduction 78 



Table of formations 79 



Annotated guide 80 



^Lorraine and Richmond formations between 



>, Toronto and Hamilton 80 



Silurian section at Hamilton 81 



•" Gypsum quarry at Caledonia 81 



Geology of the region around Hagersville 82 



by C. R. Stauffer. 



General description 82 



Salina beds 83 



Oriskany sandstone 83 



Onondaga 84 



Oneida quarries 85 



Onondaga quarries around Hagersville 87 



List of Oriskany and Onondaga fossils 92 



Log of deep well at Petrolia 100 



The Hamilton formation at Thedford and vicinity. . 101 

 by M. Y. Williams. 



Introduction 101 



Fossils of the Hamilton formation 102 



Sections of the Hamilton formation 105 



Annotated guide continued no 



Onondaga fossils at St. Marys 112 



Guelph formation at Guelph 113 



Guelph formation at Gait 117 



Fossils of the Guelph formation 118 



Niagara formation at Rockwood and Limehouse 121 



Richmond formation at Georgetown 121 



Bibliography 121 



