INDEX 445 



PAGE 



Former generic reference, species referred to Dilicloccphalus .349 



Fossils, evidence of pre-Cambrian 13 



fragment a. see Chuangia. 



fragilis, see Aluta, Bradoria, and Sclkirkia. 



Franconia formation, described and fauna listed 357 



in provisional classification 354 



Fraser River, Robson Peak district, locality described 328 



French Creek, New York, Upper Cambrian locality id-ji 262 



Frtiitvale quarry, Lancaster, Pennsylvania 246 



Furcal rami on female of Opabinidae 166 



Gallatin limestone, locality of Dikcioccphaliis sp. undt. ( footnote) 391 



Gastropod 153 



Gastropoda, developed in Missouri 359 



listed from Potsdam-Hoyt fauna 254 



Gendarme Mountain, Robson district, illustrated, pi. 59, figs. i. 2 342-343 



Genera and species, description of 363 



new, of Trilobita, described 192 



Potsdam-Hoyt fauna, described 257 



Geological section, Robson Peak district 329 



" Georgian," erroneously used for Lower Cambrian series * 305 



Gephyrea Quatrefages, class described 127 



genus Ottoia referred to 127 



represented by four genera 1 1 1 



gibbosus, see Hyolithcs. 



Gibraltar Bluff, Wisconsin, Upper Cambrian locality 86 360 



gigantca, see Anomalocaris. 



gilberti, see Olcnclltis. 



glabra, see Orthothcca. 



glacialis, see Lepidurus. 



Gneiss, kata-biotite-orthoclase, mentioned 151 



Goodrich, E. S., author of section on Holothurioidea 149 



Goodsir formation, British Columbia, Lower Ordovican 231-234 



fossil from, listed 230 



named by Allan 230 



gracilciis, see Pikaia. 



gracilis, see Mollisonia, Pollingeria, and Sclkirkia. 



Grand Canyon, Algonkian rocks of 2-3 



series, Arizona (section) 4 



Llano series compared with 4 



and Belt series 8 



grandis, see Pollingeria and Banifia. 



■granosa, see Ptyrhoparia. 



granulosa, see Ptychaspis and Ptychoparia. 



granulosus, see Crepicephalus (Loganellus) and Dikclocephalus. 



Great Slave Lake, Robson Peak district, locality described 329 



" Group terms for Lower and Upper Cambrian series of formations " 305 



3 



