338 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 57 



HITKA FORMATION.— Alternating bands of gray thin-bedded arena- 

 ceous limestone and siliceous, arenaceous, and argillaceous 

 shales, that form very striking broken cliffs and steep slopes. . 1,700 



This formation forms high slopes along the valley of Smoky 

 River below Lake Adolphus and east of Mumm Peak. 

 Fauna. — No fossils found. 



TATAY LIMESTONES. — Massive-bedded gray siliceous and arenaceous 



limestones 800 



Fauna. — -No fossils found. 



CHETANG LIMESTONES.— Bluish-gray, thin-bedded limestones form- 

 ing a cliff beneath the Tatay formation [limestones], a talus 

 slope of about 100 feet, and then a second cliff above Coleman 



Glacier and Brook 900 



This formation is well shown in Chetang Cliff, 3 miles 

 (4.8 km.) north of the summit of Titkana Mountain. 

 Fauna. — At about 100 feet (30 m.) from the summit of the forma- 

 tion (61 0) : 



Nisusia sp. undt. , 

 Zacanthoides sp. undt. 

 Bathyuriscus sp. undt. 

 At about 350 feet (105.6 m.) down in the formation at top of 

 lower cliff (6ip) the following fauna occurs: 



Albert cUa boszvorthi Walcott (Occurs at about same horizon 

 in Mount Bosworth section'). 



In a drift block (Locality 6iw) the following species were 

 found : 



Albertclla cf. bosworthi Walcott 

 Albertella n. sp. 

 Agraiilos sp. undt. 

 Ptychoparia sp. 



LOWER CAMBRL'VN 



HOTA FORMATION. — Massive-bedded arenaceous limestone in great 

 bands of light and dark gray color with a band of gray, pinkish- 

 weathering limestone at the top that forms the south slope of 

 the ridge on the north side of Coleman Brook and the south- 

 west spur of Mahto iMountain 800 



Fauna. — Fragments of Olenellus, etc., were found in the upper 

 layers of the formation on the line of the section. 



At Locality 6is, west slope of Mahto Mountain about 300 feet 

 (90 m.) from the top, 



Olenellus canadensis Walcott. 

 At Locality 6it, gray siliceous limestone near top of the 

 formation on west slope of Mahto Mountain, 

 Olenellus sp. undt. 

 Flychoparia ? 



' Smithsonian Misc. Coll., Vol. 53, 1908, No. 5. p. 214. 



