LOCALITIES. 173 



8w (see 310 1, 320f, and 321y). (For stratigraphic position and association, see p. 145.) Middle Cambrian: Lime- 

 stones of Paradoxides forchhammeri zone, at Andrarum, 20 miles (32 km.) northwest of Simrishamn, Province 

 of Christianstad, Sweden (Schmalensee, 1900). 



Micromitra pusilla. 

 Micromitra (Iphidella) ornatella. 

 *Obolus schmalenseei. 

 Lingulella ferruginea. 

 Lingulella sp. 

 Acrothele coriacea. 



Acrotreta sagittalis. 

 *Acrotreta schmalenseei. 

 Acrotreta socialis. 

 Dolichometopus svecicus Angelin. 

 Elyx laticeps Angelin, 

 Solenopleura holometopa Angelin. 



(For stratigraphic position and association, see p. 144.) Passage beds between the Upper Cambrian and the 

 Ordovician: Ctratopyge limestone at the cement works at Slemmestad, in Roken, about 3 miles (4.8 km.) 

 southwest of Christiania, Norway (Schmalensee, 1900). 



Obolus (Broggeria) salteri. 

 Lingulella lepis. 

 Lingulella sp. 

 Acrothele coriacea. 

 *Acrotreta seebachi. 



Acrotreta socialis. 

 Eoorthis daunus. 

 Eoorthis winiani. 

 Ceratopyge forficula Sars. 

 Triarthrus angelini Linnarsson. 



8y. (For stratigraphic position and association, see p. 146.) Lower Cambrian: With Torellella Ixvigata in the 

 "Sparagmite" sandstone, at Sk&rosen, northwest Dalarne, Province of Kopparberg, Sweden (Schmalensee, 

 1900). 



Lingulella nathorsti. 



Torellella laevigata Linnarsson. 



8z. (For stratigraphic position and association, see p. 146.) Middle Cambrian: Limestones of Paradoxides 

 mlandicus zone, Borgholm, Oeland Island, Sweden (Schmalensee, 1900). 

 Acrothele (Redlichella) gi'anulata. [ Liostracus aculeatus Angelin. 



Acrotreta socialis. EUipsocephalus polytomus Linnarsson. 



4:ftrotreta sp. I 



9 (same horizon as 9a). (For stratigraphic position and association, see p. 147.) Middle Cambrian: Limestone 

 on southeastern slope of ridge 1 mile (1.6 km.) north of the northwest corner of Harlan Knob, about 4 miles 

 (6.4 km.) northeast of Rogersville [see Keith, 1905, areal geology sheet], Hawkins County, Tenn. (C. D. 

 Walcott, 1891). 

 Lingulella desiderata. 



9a (same horizon as 9). (For stratigraphic position and association, see p. 147.) Middle Cambrian: Limestone 

 on the south shore of Holston River, at Melinda Ferry, 5 miles (8 km.) southwest of Rogersville [see 

 Keith, 1896a, areal geology sheet], Hawkins County, Tenn. (C. D. Walcott, 1891). 



Lingulella desiderata. 



Lingulella similis. 



9d. (For stratigraphic position and association, see p. 143.) Upper Cambrian: Obolus sandstone at Jaggowal, 

 about 20 miles (32.2 km.) east-southeast of Reval, Government of Esthonia, Russia (Schmalensee, 1900). 

 Obolus apollinis. 

 Obolus triangularis. 

 Keyserlingia buchi. 



9e. (For stratigraphic position and association, see p, 145.) Upper Cambrian: Sandstone in the Obolus con- 

 glomerate at Boda, north of Rattvik, Dalarne, Sweden (Schmalensee, 1900), 

 Obolus apollinis. 



9f. (For stratigraphic position and association, see p. 145.) Upper Cambrian: Limestones of the Olenus zone at 

 Noersnaes, west of Christiania, Norway (Schmalensee, 1900). 

 Lingulella lepis, 

 Orusia lenticularis. 

 Peltura scarabseoides Wahlenberg. 



91i (limestone above the Wolsey shale). Middle Cambrian: Limestone on Beaver Creek, 5 miles (8 km.) north 

 of York, about 8 miles (12.8 km.) north of Canon Ferry, Big Belt Mountains, Fort Logan quadrangle 

 (U. S. G. S.), Meagher County, Mont. (C. D. Walcott, 1900). 



Micromitra pealei. I Acrotreta attenuata. 



Obolella?. | Billingsella plicatella. 



9k. Middle Cambrian: Limestone forming Ic of the Dearborn River section [Walcott, 1908f, p. 201], on North 

 Fork of Dearborn River, in the eastern part of the Lewis and Clark National Forest, Lewis and Clark 

 County, Mont. (C. D. Walcott, 1900). 

 *Dearbornia clarki. 



