NO. 13 DIKELOCEPHALUS AND OTHER GENERA 



PAGE 



Newton, New Jersey, Lower Ozarkian locality iic 362 



tieivtonensis, see CalviiicJla, Eoorthis, and Ptychoparia. 



New York, geographic distribution of Dikelocephalus in 364 



Nileus ? dia (IValcott), listed from locality 70a 359 



nundina, see Sy)itrophia. 



Obolus discoidcHS (Hall and Whitfield), listed from locality 62 361 



listed from locality 66 362 



matinalis (Hall), listed from Eau Claire formation 358 



listed from Franconia formation 357 



mickwitzi Walcott, listed from Eau Claire formation 358 



listed from Franconia formation 357 



namouna Walcott, listed from Eau Claire formation 358 



rhea Walcott, listed from Eau Claire formation 358 



{Westonia) aurora (Hall), listed from Eau Claire formation 358 



listed from Franconia formation 357 



from locality 78 361 



from localities 85 and 86 360 



with St. Lawrence fauna 356 



( Westonia) iphis Walcott, listed from locality 201a 359 



(Westonia) stoneaus (Whitfield), listed from locality 85 360 



listed with St. Lawrence fauna 356 



var. or n. sp., listed from locality lie 362 



sp. undt., listed from Eau Claire formation 358 



Observations on the genera 348 



O'Donnell and McManniman's quarry. New Jersey, Lower Ozarkian 



locality lie 362 



Ogygia, Dikelocephalus compared to, by Owen 365 



Oklahoma, Dikelocephalus in 359 



Upper Cambrian locality I2g in Arbuckle limestone 372 



Oienidae, Conocephalites {^=zConokephalina) and group of forms to be 



considered in review of 348 



Oleninse, Crepicephalus Owen related to 347 



Oneota formation, in provisional classification 354 



Ophileta (Raphistoma) primordialis A. Winchell, listed from locality 78. 361 



Ordovician genus, Dikelocephalus cited as, in Europe 366 



ornata, see Conokephalina. 

 ornatus, see Conocephalites. 



Osceola, Wisconsin, Upper Cambrian localities 78 and 78b 361 



osceola, see Dikelocephalus, Finkelnburgia, Lingulclla mosia, Osceolia, and 

 Spirodentalium. 



Osceolia, new genus, described and discussed 385 



compared with Calvinella 349 



Dikelocephalus, Saukia, and Calvinella 385 



Saiikia 375 



genotype, Dikelocephalus osceola Hall 385 



locality of, discussed 362 



observations on the genus 348 



referred to Dikelocephalinse 348 



represented by a single species 385 



