488 INDEX 



PAGE 



Chief Mountain quadrangle, Algonkian unnumbered locality, Montana... 113 



Siyeh limestone locality, Montana 130 



China, Algonkian climate 84 



Cambrian fauna, discussed 58 



distribution, Redlichia , 62 



fauna, contrasted with northern India 71 



Middle Cambrian, correlated with fauna, B. C^ and 



U. S. A 4-5 



Paleozoic formations, cited, preliminary discussion.... 3 



Cambrian faunas of, publication 160 



Crepicephalus in 203 



Saratogia in 195 



see Chinese localities 17-34 



chinensis, see Agnostus, Helcionella rugosa, Mitscherlichia, Obolus, Red- 

 lichia, and Stenotheca rugosa. 



Chinese Cambrian, Solenopleura ? sibirica not represented 72 



Cambrian localities, with lists of genera and species 17-34 



collection, results 5 



faunas, American and European genera omitted 59 



Middle Cambrian fauna, distinctive genera 70 



species, stratigraphic and geographic distribution 44-50 



chione, see Damesella. 

 chippewaensis, see Lonchocephalus. 



Chisholm Mine, Nevada, type locality of Chisholm shales 409 



Chisholm shales, new formation name, described 409 



House Range, Utah, Middle Cambrian locality 3v 371 



Nevada, Middle Cambrian locality 31 344, 371 



typical fauna, listed 409 



chloris, see Protospongia. 



Chonetes loganensis, in Beaver Creek section 272 



Chon-p'ing-hien, on Nan-kiang River, Shen-si, localities C32 and C32'. .. 24 



chromatica, see Obolella. 



chronus, see Pelagiella and Platyceras. 



Chroococcacese, Algonkian algal cells resembling 103 



figured, pi. 20, fig. 5 150 



found in Great Salt Lake and Red Sea 89 



Chuangia Walcott, compared with Lisania 403 



(= Shantungia), generic references 16 



not found in America 68 



batia (Walcott) (^Ptychoparia ? batia), generic references 15 



listed, Upper Cambrian, Ch'au-mi-tien 68 



Sin-t'ai 67 



stratigraphic and geographic position 48 



fragmenta Walcott, listed, Sin-t'ai district 67 



stratigraphic and geographic position 48 



nais Walcott, listed, Upper Cambrian, Ch'au-mi-tien 68 



stratigraphic and geographic position 48 



