Formation 

 (Walcott). 



Fossils 

 (Walcott). 



Age 

 (Walcott). 



Formation 

 (Burling). 



Fossils 

 (Burling). 



Age 

 (Burling). 



Uobsou limestones. 



Drift fossils (§236) 

 and the E x t i n- 

 guisher fauna 

 (§23c). 



Ordovician. 



Unnamed series, 

 shales and thin- 

 bedded limestones 

 overlj'lng the 

 Lynx (§23/). 



4 horizons. 



Ordovician. 



Ij.vnx limestones. 



None. 



Upper Cambrian. 



Lj'nx formation. 



25 horizons. 



Upper Cambrian, 



Titkansi limestones. 



An upper (Ste- 

 phen) and a 

 lower. 



Middle Cambrian. 



Tltkana limestones. 



17 horizons above 

 the Stephen, 4 

 below. 



Middle Cambrian. 



Mumm limestones. 



None. 



Middle Cambrian. 



Synonym of the 

 Tatei (§266). 



Absent from the 

 section. 



Absent from the 

 section. 



Hitka formation. 



None. 



Middle Cambrian. 



Synonym of the 

 Titkana (§276). 



Absent from the 

 section. 



Absent from the 

 section. 



T:ita.v limestones. 



None. 



Middle Cambrian. 



Tatei limestone 

 (§21). 



4 horizons. 



Middle Cambrian. 



Clietang limestones. 



An upper and a 

 lower (Alhei-tella) . 



Middle Cambrian. 



Chetang limestone. 



8 horizons above 

 the Albertella 

 zone, 3 in it, and 

 2 below. 



Middle Cambrian. ' 



Hota formation. 



The "New Lower 

 Cambrian s u b- 

 fauua" (§§ 30c, 

 30rf, 32B, 32c). 



Lower Cambrian 

 (§§ 8a and 30e). 



Adolphus limestone 

 (§30fir). 



2 horizons, both 

 near the base. 



Middle Cambrian. 



Mahto sandstones. 



None. 



Lower Cambrian. 



Mahto sandstones. 



None. 



Lower Cambrian 

 (§§86,30e). 



Tall formation. 



None. 



Lower Cambrian. 



Mural limestone 

 (§32(7). 



4 horizons, includ- 

 ing the horizon 

 of the "N e w 

 Lower Cambrian 

 subfauna," 7 5 

 feet below top 

 (§§326 to 32e). 



Lower Cambrian. 



McNaughtou sand- 

 stones. 



None. 



Ijower Cambrian. 



Unnamed (§336). 



None. 



Lower Cambrian. 



