136 ANNALS NEW YORK ACADEMY OF SCIENCES 



Morosaurus grandis Marsh, Principal Characters of American Jurassic 

 Dinosaurs. Pt. I. Amer. Journ. Sci., 3rd ser., vol. xvi, p. 414, 1878. 

 , This form is widespread in the Morrison formation. The type locality 

 and level is the Morrison formation at Como Bluff, Wyoming. Almost 

 the entire skeleton is known. 



Amphicoelias altus Cope 



Amphiccelias alius Cope, On Amphicoelias, a genus of Saurians from 

 the Dakota epoch of Colorado. Paleontological Bulletin lNi"o. 27 (Amer. 

 Philos. Soc, Proc, vol. xvii, p. 243), 1877. 



Probably from the uppermost beds of the Morrison formation near 

 Canon City, Colorado. Known from a small part of the skeleton. 



Amphicoelias latns Cope 



Amphicoelias latus Cope, On Amphicoelias, a genus of Saurians from 

 the Dakota epoch of Colorado. Paleontological Bulletin No. 27 (Amer. 

 Philos. Soc, Proc, vol. xvii, p. 243), 1877. 



Probably from the uppermost beds of the Morrison formation near 

 Canon Cit}', Colorado. Only a small part of skeleton known. 



Symph3n:ophiis musculosus Cope 



Symphyrophus musculosus Cope, On the Vertebrata of the Dakota 

 Epoch of Colorado. Paleontological Bulletin No. 28 (Amer. Philos. 

 Soc, Proc, vol. xvii, p. 246), 1878. 



From near Canon City, Colorado, probably from the uppermost beds 

 of the Morrison formation. Not very well known. 



Caulodon leptoganus Cope 



Caulodon leptoganus Cope, On the Vertebrata of the Dakota Epoch of 

 Colorado. Paleontological Bulletin No. 28 (Amer. Philos. Soc, Proc, 

 vol. xvii, p. 247), 1878. 



Same locality and horizon as above. Known only from teeth. 



Atlantosaurus immanis Marsh 



Attantosaurus immanis Marsh, Notice of New Dinosaurian Peptiles. 

 Amer. Journ. Sci., 3rd ser., vol. xv, p. 241, 1878. 



From the middle Morrison beds near Morrison, Colorado. Compara- 

 tively small part of skeleton known. 



