MOOK, STUDY OF THE MORRISON FORMATION 139: 



Morrison beds of Wyoming, probably from Conio Blnff. The type 

 specimen consists of a nearly complete skeleton of an immature individnal. 



Morosaurus agilis Marsh 



Morosaurus agilis Marsh, Notice of New American Dinosanria. Amer. 

 Jonrn. Sci., 3rd ser., vol. xxxvii, p. 334, 1889. 



From the middle beds of the Morrison formation near Canon City, 

 Colorado. The skull and a few other parts of the skeleton are known. 



Barosaurus lentus Marsh 



Barosaurus lentus Marsh, Description of New Dinosaurian Eeptiles. 

 ilmer. Journ. Sci., 3rd ser., vol. xxxix, p. 85, 1890. 



Prom the Morrison formation near Piedmont, South Dakota. A com- 

 paratively small part of the skeleton is known. 



Pleurocoelus montanus Marsh 



Pleui-occclus montanus Marsh, The Dinosaurs of North America. U. S. 

 Geol. Surv., 16th Ann. Eep., Pt. 2, p. 184, 1896. 



Type locality and horizon unknown. Very little of skeleton is known. 



Barosaurus affinis Marsh 



Barosaurus affinis Marsh, Footprints of Jurassic Dinosaurs. Amer. 

 Journ. Sci., 4th ser., vol. vii, p. 228, 1899. 



From the Morrison formation near Piedmont, South Dakota. Very 

 little of the skeleton is known. 



Diplodocus carnegii Hatcher 



Diplodocus carnegii Hatcher, Diplodocus Marsh, its Osteology, Tax- 

 onomy, and Probable Habits, with a Eestoration of the Skeleton. Cam. 

 Mus. Mem., vol. i, p. 1, 1901. 



From the Morrison beds near Sheep Creek, Wyoming. Most of the 

 skeleton is well Icnown. Eestorations of this form have been installed in 

 many of the large museums of the world; consequently this is one of the 

 best known of the Sauropoda. 



Elosaurus parvus Peterson and Gilmore 



Elosaurus parvus Peterson and Gilmore, Elosaurus parvus ; a new 

 Genus and Species of the Sauropoda. Carn. Mus. Ann., vol. i, p. 490, 

 1902. 



