INDEX 487 



PAGE 



Center Township, Cherokee County, Alabama, Upper Cambrian locality 



92XX 170 



Center County, Pennsylvania, Upper Cambrian locality 107k 165 



Central Shan-tung, Man-t'o fauna 61 



Cephalopoda, discussed 59 



Ceratopygidae, family named 199 



Crepicephalus into family 203 



ceres, see Illxcnurus and Tsinania. 

 ceticephalus, see Agraulos. 

 ceto, see Ptychaspis. 

 ceus, see Piychoparia. 



Chagos reefs, lime secretions of 91 



chalcon, see Solenopleura. 



Chamberlain shales, Belt series gg 



Little Belt section 273 



Chamberlin and Salisbury, theory as to coastal deposits 82 



cited (footnote) 89 



Champlain Canal, New York, Upper Cambrian locality 109 194 



Ch'ang-hia, Shan-tung, localities near, €15=31, €34=36, C38, €41=51 



and C68 21-30 



section, Cambrian strata, Alan-t'o (fig. 4) 54 



district, fauna listed 67-68 



genera and species listed 65 



Middle Cambrian represented 63 



Shan-tung, section 51 



fauna, lower, listed 71 



formation, occurrence of Dorypyge richthofeni 7 



limestone, fauna in upper horizon, listed 66 



lower Kiu-lung 40 



Middle Cambrian locality C19 366 



locality C24 368 



oolite, correlated with Dorypyge richthofeni fauna, Shan-si 10 



Chara, algal agent of calcium carbonate 86, 87 



Characea, structure of 100 



Ch'au-mi-tien, Shan-tung, Ch'ang-hia district, Cambrian localities €34=36, 



C38, C4i=5i, and C68. .' 25-30 



section. Upper Cambrian and Lower Ordovician strata 55 



fauna, listed 71 



limestone, Cyrtoceras in lower 5 



genera and species, listed 68 



significance of genera 42 



upper Kiu-lung 40 



chauveaui, see Arthricocephalus. 



Chepultepec, Jefiferson County, Alabama, Upper Cambrian locality 



139a 190, 214 



Cherokee County, Alabama, Middle Cambrian localities 112, U2a 180 



Chetang formation. Alberta, Middle Cambrian locality 61 o 355 



