484 INDEX 



PAGE 



Saukia Walcott, new genus described 373 ' 



compared with Calvinella 348, 375 



Conokephalina 348 



Conokephalina ornata 348 



Dikelocephalus 348, 364. 374 



Dikelocephalus minnesotensis 370 



Dikelocephalus ? tribulis 372 



Osceolia 375, 385 



genotype, Dikelocephalus lodensis Whitfield 374 



geographic distribution of genus 375 



locaHty of genus discussed 360 



observations on the genus 348, 375 



referred to DikelocephaHnse 348 



size of, compared with Dikelocephalus minnesotensis 374 



stratigraphic range of genus 375 



coloradoensis Walcott, new species described 376 



figured, text-figs. 13-16 376 



compared with Saukia crassimarginata 376 



formation and locality ; . . . 377 



in synonymy 376 



listed with description of genus 375 



of. coloradoensis, fragments from Texas 378 



crassimarginata (Whitfield) , described 377 



figured, pi. 61, fig. 8 394 



pi. 65, figs. 9, 10 402 



pi. 66, figs. 2-5. 5a 404 



allied to Saukia. junia 378 



compared with Saukia coloradoensis 377 



Saukia lodensis 2,77 



form of dorsal shield compared with Dikelocephalus minne- 

 sotensis 347 



formation and locality 378 



in association with St. Lawrence fauna 356 



in synonymy 377 



listed from locality 78b 361 



from locality 85 360 



with description of genus 375 



with St. Lawrence fauna 356 



vertical range of, compared with Saukia lodensis 360 



of. crassimarginata '(Whitfield), listed from Jordan formation. .. . 355 



falla.x Walcott, new species described 378 



figured, pi. 67, figs. 21, 21a, 22, 22a 406 



associated with Dikelocephalus in Texas 356 



compared with Saukia Icucosia 378 



Saukia pepinensis 378 



Saukia pyrene 378, 382 



Saukia marica 380 



Saukia rustica 383 



Saukia stosei 384 



Saukia wardi 378 



