CAMBRIAN COKDILLERAN FOR.MATIOXS WALCOTT 3 



Thickness. — At Mt. Bosworth, 1,360 feet. 



Organic Remains. — Upper Cambrian, passing at summit into 

 Ordovician. 



Paget Formation 



Type Locality.— -Soutiieastern slope of Paget Peak, beneath the 

 Sherbrooke formation, which forms the high cliffs of Paget Peak 

 and Mt. Daly. The Paget formation breaks down more readily 

 than the Sherbrooke, presenting a slightly broken cliff line. The 

 most accessible locality found is on the east face of the west ridge 

 of Mt. Bosworth (Sherbrooke ridge). 



Derivation. — From Paget Peak, the type locality. 



Character. — Bluish gray and oolitic limestones, usually thin 

 bedded. 



Thickness. — At Mt. Bosworth, 360 feet. 



Organic Remains. — Upper Cambrian fauna, 



Bosworth Formation 



Tyte Locality. — Ridge extending northwest from Mt. Bosworth, 

 and southeast base of Paget Peak and Mt. Daly. 



Derivation. — From Alt. Bosworth, the type locality. 



Character. — Arenaceous, dolomitic limestones, massive, thin 

 bedded, and shaly, with bands of purple and gray siliceous shales. 



Thickness. — At Mt. Bosworth, 1,855 ^^^t- 



Organic Remains. — None observed ; formation referred to 

 Upper Cambrian. 



Eldon Formation 



Type Locality.— Upper massive limestones of Castle Mountain, 

 Canadian Rocky Mountains, Province of Alberta, one to two miles 

 north of Eldon Switch, on the Canadian Pacific Railway. 



Derivation. — From Eldon, opposite the type locality. 



Character. — Massive, arenaceous, dolomitic limestones, with a 

 few bands of purer bluish gray limestone. 



Thickness. — In Mt. Bosworth section. 2,733 feet ; at Castle 

 Mountain, 2,195 ^^^t. 



Organic Remains. — Middle Cambrian. 



Stephen Formation 



Type Locality. — Bluish gray and greenish gray limestone and 

 shale band about 2.700 feet up above railroad track on the north 

 and east sides of Mt. Stephen, Canadian Rocky Mountains, British 

 Columbia, above Field, on the Canadian Pacific Railwav. 



