CAMBRIAN CORDILLERAN SECTIONS — WALCOTT I95 



BLOOMINGTON FORMATION (continued): 



2c (continued) : p^^^ 



Fauna: 

 Hyolithes. 

 Agraulos. 



2d. Greenish argillaceous shale 3g 



Fauna: 



Obolus (Wesfonia) zvasatchensis Walcott [1908^, p. 6g]. 



Agraulos. 



Ptychoparia. 



At this horiz6n in Wasatch Canyon, 5 miles north of Brigham, 

 Acrothele subsidua (White) [1874, P- 6] occurs. 



2e. Bluish gray, thin-bedded limestone 182 



2f. Arenaceous, steel-gray limestone 22 



2g. Bluish gray limestone, with small concretions and small 



nodules of calcite scattered irregularly through the layers. . . 55 



Fauna: 

 Micromitra sculptilis (Meek) [1873, p. 479]. 

 Ptychoparia. 

 Dorypyge. 



Total of 2 1,100 



Total of Bloomington formation i>320 



BLACKSMITH FORMATION [Walcott, 1908a, p. 7] : 



la. Dark lead-gray, arenaceous limestone 195 



lb. Arenaceous, steel gray, cliff-forming limestone, in the lower 

 portion passing gradually into a dove-gray, compact lime- 

 stone that weathers to a light-gray color. The layers vary 

 in thickness from 4 inches to 2.5 feet 375 



Fauna: 



Fragments of a small trilobite {Ptychoparia ?). 

 Annelid borings. 



Total of Blacksmith formation 570 



UTE FORMATION [Walcott, 1908a, p. 7] : 



ifl. Bluish gray, compact, thin-bedded limestone, with large irregu- 

 lar annelid borings in the upper part filled with steel-gray, 

 arenaceous limestone similar to the beds above. Below the 

 limestone is purer and more uniformly gray and in layers 

 that tend to form low cliffs on the steeper slopes 290 



Fauna (in upper part) : 



Micromitra (Paterina) labradorica utahensis (Walcott) 



[1905, p. 306]. 

 Billingsella, sp. undt. 

 Hyolithes. 

 Agraulos. 



