LOCALITIES. 



205 



64x. (For stratigraphic position and association, see p. 149.) Upper Cambrian: St. Charlesi limestone [Walcott, 

 1908a, p. 6], about 200 feet (60.4 m.) above the Middle Cambrian, on the north side of Twomile Canyon, 

 near its mouth, 2 miles (3.2 km.) southeast of Malade, Oneida County, Idaho (C. D. Walcott and L. D. 

 Burling, 1906). 



Obolus wortheni. 

 Billiugsella coloradoensis 

 Agnostus. 

 Ptychoparia. 



54y. 



Liostracus. 

 Ptychaspis. 

 Anomocare. 

 Damesella. 



(For stratigraphic position and association, see p. 151.) Middle Cambrian: About 510 feet (155.4 m.) above 

 the Brigham quartzite and 3,680 feet (1,121.7 m.) below the Upper Cambrian, in the limestone forming 2g 

 of the Ute limestone [Walcott, 1908f, p. 197], in Blacksmith Fork Canyon, about 10 miles (16.1 km.) east of 

 Hyrum, Cache County, Utah (C. D. Wale and L. D. Burling, 1906). 



Micromitra (Paterina) superba. 



Hyolithes. 



Ptychoparia. 



55. (For stratigraphic position and association, see p. 140.) Middle Cambrian: Shaly limestone at the top of the 

 Eldorado limestone [Walcott, 1908f, p. 184], east slope of Prospect Mountain, in New York Canyon, Eureka 

 district [Hague, 1892, Atlas], Eureka County, Nev. (C. D. Walcott, 1886). 



Acrotreta definita. 

 Billingsella whitfieldi. 

 Agnostus bidens Meek. 



Agnostus tumidosus Hall and Whitfield. 

 Dorypyge ? quadriceps (Hall and Whitfield). 



55b. (For stratigraphic position and association, see p. 140.) Middle Cambrian: Top of the Eldorado limestone 

 [Walcott, 1908f, p. 184], west side of Secret Canyon, Eureka district [Hague, 1892, Atlas], Eureka County, 

 Nev. (C. D. Walcott, 1886). 



*Billingsella whitfieldi. 

 *Orusia? eurekensis. 

 Orusia lenticularis. 

 Stenotheca elongata Walcott. 



Agnostus bidens Meek. 

 Olenoides expansus (Walcott). 

 Zacanthoides spinosus (Walcott). 



55c (=163). (For stratigraphic position and association, see p. 152.) Middle Cambrian: Spence shale member of 

 the Ute limestone [Walcott, 1908a, p. 8], about 50 feet (15.2 m.) above the Brigham quartzite and 2,755 feet 

 (839.7 m.) below the Upper Cambrian, in a ravine running up into Danish Flat from Mill Canyon, about 6 

 miles (9.6 km.) west-southwest of Liberty and 15 miles (24.2 km.) west of Montpelier, Bear Lake County, 

 Idafio (Mr. and Mrs. C. D. Walcott, Helen Walcott, Stuart Walcott, and L. D. Burling, 1906). 



Microdiscus sp. 



Olenoides, several species. 



*Zacanthoides idahoensis Walcott. 



Zacanthoides sp. 



Oryctocephalus reynoldsi Reed. 



Oryctocara geikiei Walcott. 



Ptychoparia, many species. 



Bathyuriscus howelli Walcott. 



Bathyuriscus productus (Hall and Whitfield). 



Bathyuriscus sp. 



Micromitra (Iphidella) pannula? 



Obolus (Westonia) ella. 



Lingulella desiderata. 



Acrothele subsidua. 



Acrotreta definita. 



Acrotreta idahoensis sulcata. 



*Nisusia rara. 



Nisusia (Jamesella) spencei. 



Nisusia (Jamesella) nautes. 



Hyolithes. 



Agnostus, several species. 



55d. (For stratigraphic position and association, see p. 150.) Middle Cambrian: About 2,000 feet (609.6 m.) 

 above the Cambrian quartzitic beds, in a shale which is probably to be referred to the Bloomington forma- 

 tion [Walcott, 1908a, p. 7], on the south side of Twomile Canyon, near its mouth, 2 miles (3.2 km.) south- 

 east of Malade, Oneida County, Idaho (C. D. Walcott, 1906). 

 Obolus (Westonia) wasatchensis. 



55e (=32p). (For stratigraphic position and association, see p. 152.) Middle Cambrian: Spence shale member 

 of the Ute limestone, about 100 feet (30.5 m.) above the Brigham quartzite [Walcott, 1908f, p. 197], at the 

 mouth of the first small canyon south of Wasatch Canyon, east of Lake view Ranch, 5 miles (8 km.) north 

 of Brigham, Boxelder County, Utah (C. D. Walcott and L. D. Burling, 1906). 



Micromitra (Iphidella) pannula. 

 Obolus (Westonia) ella. 

 Lingulella desiderata. 

 Acrothele subsidua. 

 Eocystites longidactylus Walcott. 

 Agnostus. 



Ptychoparia piochensis Walcott. 



Zacanthoides idahoensis Walcott 



Neolenus 2 sp. 



Bathyuriscus howelli Walcott. 



Bathyuriscus productus (Hall and Whitfield). 



