LOCALITIES. 189 



28. Upper Cambrian: Shales about 100 feet (30.5 m.) above the Olenellus horizon, south of Highgate Falls, 0.25 

 mile (0.4 km.) east of Swanton, Franklin County, Vt. (C. D. Walcott, 188*). 

 *Protorthis wingi. 

 Hyolithes sp. 

 Ptychoparia adamsi (Billings.) 



28a. Middle? Cambrian: "St. Albans formation," in limestone lentile about 1 mile (1.6 km.) east of Parker's 

 quarry, near Georgia, Franklin County, Vt. (C. D. Walcott, 1884). 

 Lingulella franklinensis. 

 "*Huenella billingsi. 

 Ptychoparia adamsi (Billings). 



29 (see 338b). Lower Cambrian: Limestone just above the bridge at the Stockport paper mill, on Kinderhook 

 Creek, Columbia County, N. Y. (C. D. .Walcott and S. W. Ford). 

 Obolus prindlei. 

 Lingulella granvillensis. 

 A.crotreta sagittalis taconica. 



29a (see 338). Lower Cambrian: Limestone 1 mile (1.6 km.) below the New York Central Railroad depot at 

 Schodack Landing, Rensselaer County, N. Y. (C. D. Walcott and S. W. Ford). 



Obolella crassa. 



Botsfordia cselata. 



Bicia gemma. 



Acrotreta sagittalis taconica. 



Byolithellus micans (Billings). 



Hyolithes americanus Billings. 

 Microdiscus lobatus (Hall). 

 Microdiscus speciosus Ford. 

 EUiptocephala asaphoides Emmons. 



(For stratigraphic position and association, see p. 158.) Lower Cambrian: Limestone 8 miles (12.8 km.) north 

 of Bennetts Spring, on the west slope of the Highland Range, Lincoln County, Nev. (CD. Walcott and 

 J. E. W., 1885). 



Micromitra (Iphidella) pannula. 

 Obolus (Westonia) ella. 

 Billingsella highlandensis. 

 Callavia nevadensis Walcott. 

 Olenellus fremonti Walcott. 



Olenellus gilberti (Meek). 



Peachella iddingsi Walcott. 



Sponge?. 



Crepicephalus augusta Walcott. 



Crepicephalus liliana Walcott. 



30a. (For stratigraphic position and association, see p. 158.) Middle Cambrian: Shale on north side of Big Cotton- 

 wood Canyon, 1 mile (1.6 km.) below Argenta, in the Wasatch Mountains, southeast of Salt Lake City, 

 Salt Lake County, Utah (C. D. Walcott and J. E. W., 1885). 



Isoxys argentea (Walcott). 

 Ptychoparia quadrans (Hall and ^^^litfield). 

 Bathyuriscus productus (Hall and Whitfield). 

 Olenoides wasatchensis (Hall and "VMiitfield). 



Micromitra (Iphidella) pannula. 

 Obolus (Westonia) ella. 

 Lingulella helena. 

 Hyolithellus sp. 

 Hyolithes billingsi Walcott. 



Walcott [1886] wrongly includes Cruziana and Olenellus gilberti in this fauna (see Walcott, 1891b, p. 319). 



30c (=llw). (For stratigraphic position and association, see p. 157.) (C. D. Walcott, F. B. Weeks, and L. D. 

 Burling, 1905.) 

 Micromitra (Paterina) labradorica utahensis. ■ 



Ptychoparia 2 sp. 



30d. (For stratigraphic position and association, see p. 157.) Middle Cambrian: About 1,020 feet (310.9 m. ) above 

 the Lower Cambrian and 3,400 feet (1,036.3 m.) below the Upper Cambrian, in the limestone forming le of 

 the Swasey formation [Walcott, 19081, p. 182], at the head of Dome Canyon, about 2 miles (3.2 km.) west- 

 southwest of Antelope Springs, House Range [Walcott, 1908f, PI. XIII], Millard County, Utah (F. B. 

 Weeks, 1905). 



■Obolus (Westonia) ella. • 



Ptychoparia, several species. 



30e. (For stratigraphic position and association, seep. 158.) Middle Cambrian: About 100 feet (30.5 m.) above 

 the Lower Cambrian and 4,300 feet (1,310.6 m.) below the Upper Cambrian, in the limestones forming la of 

 the Langston (?) limestone [Walcott, 19081, p. 183], in Dome Canyon, House Range [Walcott, 1908f, 

 PL XIII], Millard County, Utah (C. D. Walcott, F. B. Weeks, and L. D. Burling, 1905). 



Billingsella sp. undt. Zacanthoides. 



Hyolithes. Ptychoparia. 



Leperditia?. Dorypyge?. 



