486 INDEX 



Cambrian — Continued. page 



and Archean, unconformable contact (Arc), pis. 40-42 282-287 



and Belt, explanation of apparent conformity 287 



extent of unconformity 288 



terrane, relations between 263 



section 263 



and pre-Cambrian at Helena, discussed 280 



relations between 259 



unconformity between 282 



Big Belt Mountains 263 



Cambro-Ordovician boundary in British Columbia, publication 160 



Cameron, Niles J., acknowledgments 373 



camiro, see Crcpicephalus. 



comma, see Asaphiscus. 



campanula, see Coscinocyathus. 



campe, see Ptychaspis. 



Canadian Pacific Railway, British Columbia, Upper Cambrian locality 



346e 228 



Canadian Rocky Mountain region, compared with St. Lawrence-New- 

 foundland area 308 



Canadian time, faunas in relation to Tsi-nan sea 41 



Canandaigua Lake, New York 118, 120 



water biscuit from 86 



cancellatus, see Coscinocyathus. 

 canens, see Illcsnurus and Tsinania. 

 capax, see Agraulos and Inouyia. 

 capella, see Asaphiscus. 



" Capitol Creek shale," Lower Cambrian age not sustained 291 



of Rothpletz (= Park shale of Weed) 291 



Cap Mountain formation. Upper Cambrian localities I4d, 67a 213 



capito, see Corynexochus. 



caranus, see Bathyuriscus (Poliella). 



Carboniferous, Beaver Creek section 272 



Big Snowy Mountains, Montana 275 



locality C59 28 



Lower, depositions 91 



Careless Creek, Big Snowy Mountains 274 



carinata, see Redlichia. 



Carkhuff, Norman W., photographs by, pis. 40-43 282-289 



carm,e, see Anomocarella and Coosia. 



Carnegie Institution of Washington, acknowledgments 3 



discussion of Dorypyge richthofeni in collections 7 



identification of species 6 



" The Cambrian Faunas of China " 2, 13 



Castle Mountain section, Stephen formation, Alberta, Middle Cambrian 



locality 58m 364 



Cave Spring, Floyd County, Georgia, Middle Cambrian locality 141 181 



Cedar Bluff, Coosa River, Alabama, Upper Cambrian locality 903.170, 171,213 

 Upper Cambrian locality 91 170, 171, 213, 215, 218 



