MOOK, STUDY OF THE MORRISON FORMATION 135 



Dystrophaeus visemalse Cope 



DystropJiceus vioemalce Cope, On a Dinosaurian from the Trias of Utah. 

 Amer. Philos. Soc, Proc., vol. xvi, p. 579, 1877. 



The type locality of this species is Painted Canyon, in southeastern 

 Utah. The beds were considered by Cope to be Triassic, but have since 

 been found to be the McElmo formation. Only a small part of the 

 skeleton is known. 



Atlantosaurus montanus Marsh 



Titanosaiirus montanus Marsh, Notice of a new and Gigantic Dinosaur. 

 Amer. Journ. Sci., 3rd ser., vol. xiv, p. 87, 1877. 



Atlantosaurus montanus Marsh, N"otice of IS'ew Dinosaurian Eeptiles 

 from the Jurassic formation. Amer. Journ. Sci., 3rd ser., vol. xiv, p. 514, 

 1877. 



This form was discovered at Morrison, Colorado. It was the first form 

 of the Sauropoda found in the eastern Rocky Mountain area of the Morri- 

 son formation and the one which gave its name to the formation as 

 "Atlantosaurus beds." 



Camarasaurus supremus Cope 



Camarasaurus sup-emus Cope, On a Gigantic Saurian from the Dakota 

 Epoch of Colorado. Paleontological Bulletin ISTo. 25, 1877. 



From the uppermost beds of the Morrison formation near Cafion City, 

 Colorado. A well known and characteristic Morrison form. 



Caulodon diversidens Cope 



Caulodon diversidens Cope, On Reptilian Remains from the Dakota 

 Beds of Colorado. Amer. Philos. Soc, Proc, vol. xvii, p. 193, 1877. 



Probably from the uppermost beds of the Morrison formation near 

 Canon City, Colorado. Known only from teeth. 



Apatosaurus ajax Marsh 



Apatosaurus ajax Marsh, Notice of ISTew Dinosaurian Reptiles from the 

 Jurassic formation. Amer. Journ. Sci., 3rd ser., vol. xiv, p. 514, 1877. 



Type locality, Morrison, Colorado. Characteristic portions of the skel- 

 eton known. 



Morosaurus grandis Marsh 



Apatosaurus grandis Marsh, JSTotice of ISTew Dinosaurian Reptiles from 

 the Jurassic formation. Amer. Journ. Sci., 3rd ser., vol. xiv, p. 514, 



1877. 



