HISTORY OF DISCOVERY. 9 



Professor Marsh was not slow to recognize the importance of the Converse County locality, 

 and, with the tenacity and enthusiasm that were so characteristic of him, for four years he 

 continued the work in that region, which was carried on for him by me, often under most 

 discouraging circumstances, but which in the end resulted in the accumulation of the splendid 

 collection which forms the basis of the present monograph. This locality has since been visited 

 by collecting parties sent out from the American Museum of Natural History, Princeton, Chicago, 

 and the Kansas State universities, and from the Carnegie Museum. All of these have met 

 with some success. 



DISCOVERY OF CERATOPSIA REMAINS IN CANADA BY L. M. LAMBE. 



For many years the fresh and brackish water deposits of the Upper Cretaceous on Milk, 

 Red Deer, and Belly rivers in Canada have been known to contain remains of dinosaurs. It 

 was not, however, until after the recent publication by Prof. H. F. Osborn and Mr. L. M. Lambe, 

 based on the material brought together by the latter during the seasons of 1897, 1898, and 

 1901, through explorations carried on in the interests of the Canadian Geological Survey in 

 the Edmonton and Belly River series of the Red Deer River district, that anything like an 

 adequate knowledge of the nature of these dinosaurs was made known. The publication of 

 this joint memoir by Osborn and Lambe" has not only made known a new and highly impor- 

 tant locality for the Ceratopsidaa, but has extended their known geographical range and has 

 brought to light a number of new forms. 



CERATOPSIA REMAINS DISCOVERED IN THE LARAMIE OF MONTANA. 



In 1902 the American Museum party, consisting of Messrs. Barnum Brown and R. S. Lull, 

 discovered a nearly complete skull and other material of one of the larger members of the Cer- 

 atopsia in beds belonging to the Laramie on Hell Creek Canyon, 135 miles northwest of Miles 

 City, Mont. The skull was briefly described by Lull. 6 



a On Vertebrata of the mid-Cretaceous of the Northwest Territory: Geol. Surv. Canada, Contr. to Can. Pal., vol. 3, pt. 2, 1902, pp. 1-81. 

 6 Skull of Triceratops saratus: Bull. Am. Mus. Nat. Hist., vol. 19. pp. 686-695. 



