NO, 13 DIKELOCEPHALUS AND OTHER GENERA 



Saiikia — Continued. page 



stosci, n. sp. — Continued. 



formation and locality 384 



geographic distribution 375 



listed with description of genus 375 



occurrence of in Cambro-Ordovician limestones 362 



wardi, n. sp., described and discussed 384 



figured, pi. 69, figs. 1,2 410 



compared with Saiikia faUa.v 378 



Saukia Icucosia, S. pepinensis, and 6". lodcnsis 384 



formation and locality 385 



geographic distribution 375 



listed with description of genus 375 



occurrence of in Cambro-Ordovician limestones 362 



Schizamhon typicalis Walcott, listed from locality 201a 359 



Schuchert, Charles, acknowledgments 384 



collection by mentioned 346 



Scotland Station, Pennsylvania, Lower Ozarkian localities 5911 and 59 o. . 384 



sculptilis, see Micromitra. 



Serpulites murchisoni Hall, listed from locality 113 360 



listed with St. Lawrence fauna 356 



Shakopee formation, in provisional classification 354 



" Shovel-head," common name given to Dikcloccphalus (footnote) 363 



shumardi, see Conaspis. 



" Siliceo-argillaceous dolomite," in St. Lawrence formation 355 



sintilis, see Lingulella. 



Species, previously referred to Dikelocephahis 349 



spims'.er, see CalvincUa and Dikelocephahis. 



spinosa, see Acrotreta. 



Spirodentalium osceola Walcott, listed from locality 78 361 



listed with St. Lawrence fauna 356 



Steiiothcca sp. undt., listed from Eau Claire formation 358 



Stillwater, Minnesota, Upper Cambrian locality 85b near 371 



stoneanus, see Obolits (IVestonia). 



stosci, see Saukia. 



Stratigraphic position of the Dikclocephalinae 353 



Stratigraphic range of genera of Dikelocephalinae 358 



Straparollus ? (Ophilctaf) priinordialis Winchell, listed from Jordan tor- 



mation 3SS 



s'iveeti, see Holopea. 



Synonymic references, species previously referred to Dikelocephahis 349 



Syntrophia barabiiensis (A. Winchell), listed from Franconia formation.. 357 



listed from Jordan formation 355 



listed from locality 78 361 



listed with St. Lawrence fauna 356 



nundina Walcott, listed from locality 201a 359 



primordialis (Whitfield) listed from Franconia formation 357 



listed with St. Lawrence fauna 356 



primordialis argia Walcott, listed from Franconia formation 357 



