146 ANNALS NEW YORK ACADEMY OF SCIENCES 



Camptosaurus ampins Marsh 



Caniptonotus amplvs Marsh, Notice of New Jurassic Eeptiles. Amer. 

 Jonrn. Sci., Srd ser., vol. xviii, p. 501 (503), 1879. 



Camptosaurus [ampins'] Marsh, Names of Extinct Reptiles. Amer. 

 Journ. Sci., Srd ser., vol. xxix, p. 169, 1885. 



Prom a lower horizon than C. clispar. No locality given. A small 

 part of the skeleton is known. 



Camptosaurus medius Marsh 



Camptosaurus medius Marsh, The Typical Ornithopoda of the Ameri- 

 can Jurassic. Amer. Journ. Sci., Srd ser., vol. xlviii, p. 85, 1894. 

 No locality given. Parts of the skeleton are known. 



Camptosaurus nanus Marsh 



Camptosaurus nanus Marsh, The Typical Ornithopoda of the American 

 Jurassic. Amer. Journ. Sci., Srd ser., vol. xlviii, p. 85, 1894. 



No locality given. Small part of the skeleton is known. This form. 

 is one of the smallest of the dinosaurs, being only about six feet long, 

 according to Marsh's estimate. 



Laosaurus celer Marsh 



Laosaurus celer Marsh, Notice of New Dinosaurian Eeptiles. Amer. 

 Journ. Sci., Srd ser., vol. xv, p. 241 (244), 1878. 



Probably from the middle beds of the Morrison formation near Canon 

 City, Colorado. Characteristic portions of the skeleton are known. This 

 form is remarkably bird-like, and is very small, being only about the size 

 of a fox. 



Laosaurus gracilis Marsh 



Laosaurus gracilis Marsh, Notice of New Dinosaurian Eeptiles. Amer. 

 Journ. Sci., Srd ser., vol. xv, p. 241 (244), 1878. 



Locality not given. It is known from Como Bluff. Exceedingly 

 small. 



Laosaurus consors Marsh 



Laosaurus consors Marsh, The Typical Ornithopoda of the American 

 Jurassic. Amer. Journ. Sci., Srd ser., vol. xlviii, p. 85 (87), 1894. 



From the Morrison of Wyoming, probably from Como Bluff. Char- 

 acteristic portions of the skeleton are known. 



