CAMBRIAN CORDILLERAN SECTIONS WALCOTT I97 



UTE FORMATION (continued): Feet 



2c. Greenish argillaceous and calcareous shale, weathering buff. .. 51 



2d. Thin-bedded, grayish-blue limestone 36 



2e. Gray, oolitic limestone in layers 3 to 14 inches thick 24 



Fauna: 

 Micromitra (Patcrina) stitarti Walcott [igoSrf. p. 58]. 

 Micromitra (Paterina) superba (Walcott) [1897, P- 7ii]- 

 Hyolithcs. 

 Ptychoparia a. 

 Ptychoparia b. 

 Dorypyge (fragment). 



2/. Greenish argillaceous and sandy shale 18 



Fauna: 



Obolus mcconnelli (Walcott) [1889, P- 44i]- 



Micromitra {Paterina) superba (Walcott) [1897, p. 711]. 



Ptychoparia, sp. undt. 



2g. Bluish gra}^ thin-bedded limestone 22 



Strike, north 30° (magnetic) ; dip, 12° northwest. 



Fauna (near base) : 

 Micromitra (Paterina) superba (Walcott) [1897, p. 711]. 

 Hyolithes. 

 Ptychoparia (small heads). 



Total of 2 246 



Spence shale [Walcott, 1908a, p. 8] : 



I. Greenish argillaceous and sandy shale 30 



Fauna: 



Micromitra (Iphidella) panntila (White) [1874, p. 6]. 

 Obolus {Westonia) ella (Hall and Whitfield) [1877, p. 232]. 

 Hyolithes. 



Orthothcca major Walcott [i9o8f, p. 246, pi. I, fig. 11]. 

 Leperditia. 

 Ptychoparia. 



Bathyuriscus prodnctus (Hall and Whitfield) [1877, P- 

 244]. 



At W^asatch Canyon, 5 miles north of Brigham, Utah, the fol- 

 lowing were found at this horizon : 



Eocystites ? longidactylus Walcott [1886, p. 94]. 

 Micromitra {Iphidella) pannula (White) [1874. p. 6]. 

 Obolus (Westonia) ella (Hall and Whitfield) [1877. p. 232]. 

 Lingiilella desiderata (Walcott) [1898, p. 399]. 

 Acrothele subsidua (White) [1874, p. 6]. 

 Agnostus. 



Ptychoparia piochensis Walcott [1886, p. 201]. 

 Zacanthoidcs idahocnsis Walcott [1908^, p. 26]. 



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