LOCALITIES. 177 



lOp". (For stratigraphic position and association, see p. 134.) Middle Cambrian: Sandstone on the small brook 

 on the hill between the bridge over Indian River and McPhees Brook, Cape Breton, Nova Scotia (S. W. 

 Loper, 1901). 



Obolus (Palaeobolus) bretonensis. 

 Lingulella (Lingulepis) gregwa. 

 Lingulella (I.ingulepis) gregwa robusta. 

 Lingulella (Lingulepis) longinervis. 

 Acrothele avia. 



Acrotreta gemmula. 

 Acrothyra sera. 

 Bradoria robusta (Matthew). 

 Bradoria obesa (Matthew). 



lOq (a little above lOp; see 344o). (For stratigraphic position and association, see p. 134.) Middle Cambrian: 

 Sandstone below the waterfall in Division E2b of Matthew's [1903, p. 21] Etcheminian, Dugald Brook, 

 Indian River, eastern Cape Breton, Nova Scotia (S. W. Loper, 1901). 

 Acrothyra proavia. 



Matthew [1903, p. 25] cites the following species from Division 2b: 

 Acrothyra signata tarda=Acrothyra sera. I Orthotheca. 



Lingulepis longinervis. j Bradorona perspicator magna Matthew. 



Bassler cites the following from this locality: 

 Bradoria elongata n. sp. 



lOr. (For stratigraphic position and association, see p. 131.) Upper Cambrian: Arenaceous shales of Division 

 C3a? of Matthew at McAdam shore. East Bay, east of Bras d'Or Lake, eastern Cape Breton, Nova Scotia 

 (S. W. Loper, 1901). 



Obolus (Broggeria) salteri. | Obolus (Westonia) escasoni?. 



Obolus (Palaeobolus) bretonensis. | *Lingulella lens. 



10s. (For stratigraphic position and association, see p. 132.) Middle Cambrian: Sandstone on McLean Brook, 

 near Marion Bridge, eastern Cape Breton, Nova Scotia (S. W. Loper, 1901). 

 Lingulella cania. 

 Lingulella (Lingulepis) exigua. 

 Beyrichona triceps Matthew. 



lot. (For stratigraphic position and association, see p. 132.) Middle Cambrian: Sandstone on McLean BrooK, 

 near Marion Bridge, eastern Cape Breton, Nova Scotia (S. W. Loper, 1901). 

 Lingulella (Lingulepis) exigua. 



lOv. Upper Cambrian: Shales in the "St. Croix sandstone " at Fox Glen, about 8 miles (12.8 km.) east of Baraboo, 

 Baraboo quadrangle (U. S. G. S.), Sauk County, Wis. 

 *Obolus pheres. 

 Lingulella winona. 

 *Acrotreta nox. 



lOw. (For stratigraphic position and association, see p. 139.) Middle Cambrian: Shaly limestones about 5 miles 

 (8 km.) northeast of Osceola, on the east side of the Snake Range, WTiite Pine County, Nev. (C. D. Walcott 

 1903). 



Micromitra sculptilis. 



Obolus mcconnelli. 



lOy (same horizon as lOz). (For stratigraphic position and association, see p. 155.) Middle Cambrian: About 

 2,900 feet (884 m.) above the Lower Cambrian and 1,500 feet (457.2 m.) below the Upper Cambrian, in the 

 central part of the limestone forming la of the Marjum limestone [Walcott, '1908f, p. 179], about 1 mile 

 (1.6 km.) south-southwest of Marjum Pass, House Range [Walcott, 1908f, PL XIII], Millard County, Utah 

 (C. D. Walcott and F. B. Weeks, 1903). 



Micromitra sculptilis. 

 Obolus mcconnelli. 

 Lingulella arguta. 

 Acrothele subsidua. 



Acrotreta attenuata. 

 Agnostus. 

 Ptychoparia. 

 Anomocare. 



lOz (same horizon as lOy). (For stratigraphic position and association, see p. 155.) Middle Cambrian: About 2,900 

 feet (884 m.) above the Lower Cambrian and 1,500 feet (457.2 m.) below the Upper Cambrian, in the central 

 part of the limestone forming la of the Marjum limestone [Walcott, 1908f, p. 179], in the long cliff about 

 2 miles (3.2 km.) southeast of Marjum Pass [see Walcott, 1908f, Pis. XIII and XV], House Range, Millard 

 County, Utah (C. D. Walcott, F. B. Weeks, and L. D. Burling, 1903 and 1905). 



*Dicellomus prolificus. 

 *Acrotreta bellatula. 

 Agnostus 2 sp. 



62667°— VOL 51, pt 1- 



Ptychoparia 2 sp. 



Agraulos. 



Anomocare. 



