INDEX 477 



PAGE 



Port Henry, New York, locality of Pagodia seelyi 269 



Upper Cambrian locality 136 262 



locality 136a 268, 269 



locality 367g 262 



Potsdam formation, pygidia of Dikelocephalus hartti from 368 



Potsdam sandstone, Ausable Chasm, New York, Upper Cambrian locality 



338t 262 



Keeseville, New York, unnumbered locality 292 



New York, Upper Cambrian locality 77 262-304 



Upper Cambrian locality 109 268 



localities no, i loa 268 



locality in, Chateaugay 267, 268, 292 



locality 136a 268, 269 



locality 220b 261-300 



Iowa and Wisconsin, relation of Hoyt quarry fauna to 252 



Port Henry, New York, Upper Cambrian locality 136 262 



Trenton Falls, Oneida County, New York 270 



Potsdam-Hoyt fauna, stratigraphic position of 254 



Prairie du Sac, Wisconsin, Upper Cambrian locality 84 360, 370 



Pre-Cambrian Algonkian crustacean, Bcltina, connection with Silurian... 19 



Belt series, Miette formation 34° 



continental surface, discussion of 9 



distribution. North America, map showing 4-5 



fossils, evidence of 13 



marine deposits, none on North American continent 2 



sedimentation 161 



Merostomata represented in I55 



rocks, discussion of 3 



maps showing distribution of 4-5 



preciosa, see Miskoia. 



Fre-Olenellus fauna, of Rocky Mountains 2 



Pre-Ordovician formations, classification of 354 



Present generic reference, species previously referred to Dikelocephalus. . 349 



Pre-Trenton age, fossils evidently of 253 



prima, see Lingulella. 



primordialis, see Ophileta (Raphistouia) and Syntrophia. 



Proampyx btirea (Walcott) (=^Ptychoparia (Proampyx) burea Wal- 



cott), present and former generic reference.... 72 



Proboscis of Opabinia regalis 169 



producta, see Lcetmonice. 

 productus, see Bathyuriscus. 

 proliferum, see Cryptosoon. 

 prolifica, see Ottoia. 

 prolificus, see Dicellomus. 

 prolongus, see Agnostus. 



Protichnites Owen, genus described 275 



compared with Limulus, Climactichnites, and Paradox- 

 ides 276, 277 



in synonymy 275 



S 



