372 INDEX 



Formations — Continued. PAGE 



Robson (Ordovician) •• 218 



Sabine (Upper Cambrian) 49- 227 



St. Piran (Lower Cambrian) 252 



Sarbach (Canadian) 35, IQO, 220 



Sherbrook (Upper Cambrian) 241 



Sinclair (Ordovician) 14, 34. 50 



Skoki (Ordovician) 217 



Stephen (Middle Cambrian) 247 



Sullivan (Upper Cambrian) 244 



Tah (Lower Cambrian) 255 



Tatei (Middle Cambrian) 250 



Titkana (Middle Cambrian) 248 



Fort Mountain formation (Lower Cambrian) 254 



Fossil Mountain section 281 



section on northeast shoulder of 287 



Genera and species, Description of 65 



Genus Amcccphahis Walcott 53 



Anoria Walcott 54 



Armonia Walcott 54 



Belief ontia Ulrich 54 



Bowmania Walcott 73 



Briscoia Walcott 74 



Burnetia Walcott 54 



Bynnmia Walcott 54 



Chancia Walcott 55 



Corbinia Walcott 55 



Crusoia Walcott 55 



Dokimocephalus Walcott 55 



Dunderbergia Walcott 56 



Elkia Walcott 56 



Elrathia Walcott 56 



Elvinia Walcott 56 



Eurekia Walcott 56 



Hardyia Walcott 57 



Holteria Walcott 57 



Housia (Walcott) 57 



Idahoia Walcott 58 



Iddingsia Walcott 58 



Irvingella Ulrich and Resser 58 



Isoteloides Raymond •. 58 



Kingstonia Walcott 58 



Leiosteginm Raymond 104 



Maladia Walcott 59 



Modocia Walcott 59 



Moosia Walcott 59 



Moxomia Walcott 59 



Symphysurina Ulrich 108 



Taenicephahts Ulrich and Resser . . . , 59 



