LOCALITIES. 193 



31q. (For stratigraphic position and association, see p. 153.) Upper Cambrian: About 2,800 feet (853.4 m.) above 

 the Middle Cambrian and 500 (152.4 m.) below the top of the Upper Cambrian, in the gray limestone forming 

 la of the Notch Peak limestone [Walcott, 1908f, p. 175], north slope of Notch Peak, House Range [Walcott 

 1908f, Pis. XIII and XIV], Millard County, Utah (F. B. Weeks, 1905). 



Lingulella isse. 



Dikellocephalus?. 



31s. (For stratigraphic position and association, see p. 157.) Middle Cambrian: 490 feet (149.4 m.) above the Lower 

 Cambrian and 3,925 feet (1,196.3 m.) below the Upper Cambrian, in the pinkish argillaceous shale forming 

 Id of the Howell formation [Walcott, 1908f, p. 182], south side of Dome Canyon, about 1 mile (1.6 km.) below 

 the divide and 3 miles (4.8 km.) west-southwest of Antelope Springs, House Range [Walcott, 1908f, PI. 

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



Micromitra (Iphidella) pannula. 

 Obolus (Westonia) ella. 

 Acrothele spurri. 

 Acrotreta cf . ophirensis. 



Scenella. 

 Hyolithes. 

 Zacanthoides. 

 Bathyuriscus. 



31t (25 feet above 30k at same locality). (For stratigraphic position and association, see p. 154.) Upper Cambrian: 

 About 1,175 feet (358.1 m.) above the Middle Cambrian and 2,150 feet (655.3 m.) below the top of the Upper 

 Cambrian, in the limestone forming Id of the Orr formation [Walcott, 1908f, p. 176], on Orr Ridge, about 5 

 miles (8 km.) south of Marjum Pass, House Range [Walcott, 1908f, PI. XIII], Millard County, Utah (L. D. 

 Burling, 1905). 



Linnars&onella modesta. [ Solenopleura. 



*Linnarssonella nitens. I Protaspis. 



31u. (For stratigraphic position and association, seep. 158.) Middle Cambrian: Shalesonwest slope of spur facing 

 the main part of the Highland Range, 3 miles (4.8 km.) northwest of Pioche, Lincoln County, Nev. 



Walcott [1891b, p. 318] cites the following species from this locality: 



Lingulella ella=Obolus (Westonia) ella. 

 Kutorgina pannula=Micromitra (Iphidella) pannula. 

 Eocystites?? longidactylus Walcott. 

 Hyolithes billingsi Walcott. 



Ptychoparia piochensis Walcott. 

 Zacanthoides typicalis (Walcott). 

 Bathyuriscus howelli Walcott. 

 Bathyuriscus productus (Hall and Whitfield). 



31v. (For stratigraphic position and association, see p. 157.) Middle Cambrian: 650 feet (198.1 m.) above the 

 Lower Cambrian and 3,750 feet (1,143 m.) below the Upper Cambrian, in shales at the top of the limestone 

 forming la of the Howell formation [Walcott, 1908f, p. 182], northeast side of Dome Canyon, about 4 miles 

 (6.4 km.) west-southwest of Antelope Springs, House Range [Walcott, 1908f, Pis. XIII and XVI], Millard 

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



Micromitra (Iphidella) pannula. 



Acrotreta cf. ophirensis. 



Ptychoparia. 



Sly. (For stratigraphic position and association, see p. 151.) Middle Cambrian: Thin-bedded limestone about 125 

 feet (38 m.) above the Cambrian quartzitic sandstones in the Wasatch Mountains, 1 mile (1.6 km.) north- 

 west of Geneva (Copenhagen), east of Brigham, Boxelder County, Utah (F. B. Weeks and L. D. Burling, 

 1905). 



Obolus mcconnelli. 



Lingulella isse. 



31z (=55t). (For stratigraphic position and association, see p. 151.) Middle Cambrian: About 350 feet (106.7 m.) 

 above the Brigham quartzite, in the limestone of the Ute limestone [Walcott, 1908a, p. 7], on west side 

 of road, 0.5 mile (0.8 km.) above the forks, Paradise Dry Canyon (locally known as East Fork), east of Para- 

 dise, Cache County, Utah (F. B. Weeks, 1905). 



Otusia utahensis. 



Acrotreta ophirensis. 



32. Lower Cambrian: Sandstone on the south slope of Stissing Mountain, Dutchess County, N. Y. (C. D. Wal- 

 cott, 1886). 

 *Obolella minor. 

 Obolella sp. 

 Elliptocephala asaphoides Emmons. 



32a. Lower Cambrian: Limestone, 0.75 mile (1.2 km.) west of Riders Mill station on the Harlem Extension Rail- 

 road, about 9 miles (14.4 km.) north-northeast of Chatham, Kinderhook quadrangle (U. S. G. S.), Colum- 

 bia County, N. Y. (C. D. Walcott and T. N. Dale, 1891). 



Bicia gemma. 



Acrotreta sagittalis taconica. 



62667°— VOL 51, pt 1—12 13 



