No. 7.] WHITEAVES — JURASSIC FOSSILS. 409 



probably from a very similar geological horizon, were collected 

 by Mr. Selwyn in 1875, at Rock Island Gates below Hudson's 

 Hope on the Peace River, but the specimens, which were des- 

 cribed in the Report of Progress for 1875-6, are very few in num- 

 ber, and so imperfect that none of the species could be satisfac- 

 torily determined. 



If the identifications in the present paper be correct, it would 

 appear that nine of Meek & Hayden's species from the Jurassic 

 rocks of Dakota, are found also in the Coast Range of British 

 Columbia. These are : — 



Gryphcea calceola, var., Nebrascensis. 

 Camptonectes extenuatus. 

 Eumicrotis curta. 

 Modiola (Volsella) formosa, 

 " " per tenuis. 



Grammatodon inomatus. 

 Astarte fragilis. 

 Pleuromya subclllptica. 

 Planoi^bis veternus. 



It would seem, therefore, that the sea of the Jurassic epoch 

 once covered an extensive, and probably contiuuous tract of 

 country on the western portion (at least) of this Continent ; and 

 there are strong reasons for supposing that the. marine faunae of 

 the Triassic and Cretaceous periods were no less widely spread. 

 The Upper Trias is known to extend from Mexico, through 

 California and Nevada, to British Columbia, and Monotis sub- 

 circularis, G-abb, one of its most characteristic fossils, has recently 

 beeen found in the northern part of Vancouver Island ; also, on 

 the mainland of British Columbia, at a few miles from Fossil 

 Point, on Peace River, and on Upper Pine River, east of the 

 mountains.* Two species of fossils which were originally des- 

 cribed from the Cretaceous rocks of Texas, have been found by 

 Mr. Selwyn in deposits of the same age on the Upper Peace 

 River, and among the extensive collections of Cretaceous fossils 

 obtained by Mr. Richardson from Vancouver and adjacent Is- 

 lands, there are several species which occur also in Texas f 

 Nebraska or New Jersey. From these, and from similar circum- 



* The last mentioned locality, represented by specimens collected 

 for Mr. Dawson by Mr. J. Hunter, of the Railway Survey. 



