86 Canadian Record 6f Science. 



CONTRIBUTIONS TO CANADIAN PALAEONTOLOGY, 

 PART II.— ON VERTEBRATA OF THE MID-CRETA- 

 CEOUS OF THE NORTH-WEST TERRITORY. By 

 Henry Fairfield Osborn, Vertebrate Palaeontologist 

 Assistant Palaeontologist. 1. Distinctive Characters of 

 (Honorary) of the Survey, and Lawrence M. Lambe, 

 the Mid-Cretaceous Fauna, by Henry Fairfield Osborn. 2. 

 New Genera and Species from the Belly River Series 

 (Mid-Cretaceous) by Lawrence M. Lambe. 



This publication of 81 pages is a sequel to the late Prof. 

 Cope's article on " The Species from the Oligocene or Lower 

 Miocene beds of the Cypress Hills," and in it Mr. Lambe gives 

 additional proof of his rapidly extending acquaintance with 

 Palaeontology, which he has been making his specialty. 



The first twenty-two pages are devoted to an introduction 

 by Prof. Osborne, whose efficiency and gratuitous services to 

 the Geological Survey of Canada, are heartily acknowledged 

 by Dr. Robert Bell, administrative head of the Survey. Prof. 

 Osborn, as Curator of the Department of Vertebrate Palaeon- 

 tology, of the American Museum of Natural History, New 

 York, has special qualifications for giving authoritative ad- 

 vice on all questions bearing on Vertebrate fossils. This work 

 he undertook at the request of the late Dr. George M. Dawson, 

 Director of the Survey. In his paper, he outlines the general 

 characteristics of the fauna of the Mid-cretacious formation. 

 The question he has sought to settle is the age to which the 

 fossil remains of the Belly River series of rocks in the vicinity 

 of Red Deer River, Northern Alberta, belong. Mr. Lambe made 

 collections in the years 1897, 1898 and 1901, which have added 

 materially to the data previously procured by Dr. G. M. 

 Dawson, Mr. R. G. McConnell and Mr. J. B. Tyrrell, for deter- 

 mining the Geology of the region around Edmonton. Dr. 

 G. M. Dawson had, with the materials then within reach, 

 assigned the Belly River rocks to a later age, ranking them 

 with the Laramie beds of Converse County, Wyoming, as 

 Upper Cretaceous. Prof. Osborn institutes a detailed com- 

 parison between the two series named, and shows that the 

 prevailing types of the remains of Vertebrate animals in the 

 Belly River rocks have much more in common with the Mon- 

 tana or Mid-Cretaceous series. The four species most numer- 

 ously found in the series under consideration are Testudinata, 



