CAMBRIAN CORDILLERAN SECTIONS 225 



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Hyolithcs billingsi Walcott 1S3, 184, 213, 214, 215 



carinatus Matthew 210 



sp. undt 178, 180, 182, 183, 188, 193, 194, 195, 196, 197, 198, 



205, 209, 210, 211, 212, 213, 214, 215 



idaliocnsis, see Acrotreta and Zacanthoides. 



idahooisis alta, see Acrotreta. 



idahoensis sulcata, see Acrotreta. 



Illccnurus 175. ^77, 192, 204, 205 



inflatus, see Neolenus. 



intermedius, see Neolenus. 



in termedius pugio, see Neolenus. 



(Iphidella), see Micromitra (Iphidella). 



iphis, see Obolus (Westonia). 



Isoxys cf. argcntea (Walcott) 196, 209 



isse, see Lingulella. 



(Jamcsclla) , sej Nisusia (Jamesella). 



Johnson, W. D., mentioned I73 



Karlia stepheuensis Walcott 211 



kingi. see Ptychoparia. 



Kintla uplift, mentioned 191 



(Kootenia), see Dorypyge (Kootenia). 



Kutorgina cingulata (Billings) 189, 215 



perugata Walcott 189 



sp. undt 215 



labradorica, see Micromitra (Paterina) . 



labradorica iifahensis, see Micromitra (Paterina) . 



Lake Agnes, Alberta, fossils near 214 



Lake Louise, view of mountains surrounding pi. 22 



Lake Louise formation, near Lake Louise 171, 216, pi. 22 



Lake Louise section. Alberta, resume of lower part 217 



Langston formation. Blacksmith Fork 171, 198-199 



Langston (?) formation, House Range 171, 183, pi. 17 



Leperditia 183, 197, 211 



lesleyi, see Huenella. 



levis, see Zacanthoides. 



liliana, see Crepicephalus. 



linearis, see Scolithus. 



Lingulella arguta (Walcott) 179, 180, 182 



desiderata (Walcott) 176, 177, 192, 194, 197, 198 



dubia (Walcott) 183 



helena (Walcott) 198 



isse (Walcott) 175, 176, 178, 198, 204, 209 



manticula (White) 176, 191, 192, 193 



sp. undt 209 



(Lingulepis) acuminata (Conrad) 192, 193 



Linnarssonella modesta Walcott 176 



nitens Walcott 176 



transversa Walcott 17^ 



sp. undt 181 



Little Belt Mountains, discussion of horizons in 203 



