NO. 13 DIKELOCEPHALUS AND OTHER GENERA 



PAGE 



Prairie du Sac, Wisconsin, Upper Cambrian locality 84 360, 370 



Pre-Ordovician formations, classification of 354 



Present generic reference, species previously referred to Dikclocephalus. 349 



priiiwrdialis, see Ophileta (Raphistoma) and Syntrophia. 



prolongus, see Agnostns. 



Ptcrocephalus, generic name bracketed by Hall and Wbitfield with 



Dikclocephalus 366 



Ptychaspis, association of, with Conokephalina 362 



Owen's species of Dikclocephalus referred by Hall to 366 



granulosa (Owen), listed from Franconia formation 357 



viiniscaensis (Owen), listed from Franconia formation 357 



striata Whitfield, listed from Franconia formation 357 



new species, listed from St. Lawrence fauna 356 



sp. undt., listed from Jordan formation 355 



sp., listed from locality 113 360 



with St. Lawrence fauna 356 



Ptychoparia, association of, with ConokephalinaL 262 



relation of Conokephalina to 387 



f binodosa (Hall), listed with St. Lawrence fauna 356 



f calymenoides Whitfield, listed from Eau Claire formation 358 



chippezvacnsis Owen, listed from Eau Claire formation 358. 



diademata (Hall), listed from Franconia formation 357 



llanociisis Walcott, referred to Conaspis (footnote) 358 



ncivloncnsis Weller, listed from locality lie 362 



optata Hall, listed from Eau Claire formation 358 



pater'soni (Hall), referred to Conaspis (footnote) 358 



See Conaspis. 



? quadrata (Whitfield), listed from Eau Claire formation 358 



sp., listed with St. Lawrence fauna 356 



punctata, see Litigulclla. 



pyrene, see Saukia. 



quadratus, see Illccnurus. 



Quandary Peak, Colorado, locality (20b) of Saukia coloradoensis 377 



Reads Landing. Minnesota, Upper Cambrian locality 97 371 



rustica, see Saukia. 



St. Croixan, in provisional classification 354 



St. Lawrence fauna, listed 356 



St. Lawrence formation, described 355 



in provisional classification 354 



Upper Cambrian localities 85, 86, and 113 360 



Upper Cambrian locality 78, Wisconsin 361 



Upper Cambrian, at Osceola, Wisconsin 361 



St. Lawrence limestone, Hsted with Upper Cambrian of Minnesota 353 



St. Lawrence Valley of Canada, geographic distribution of Dikclocephalus 



in 365 



Salter, J. W., interpretation of Dikclocephalus cited 366 



