THE 
FOSSIL BIRDS OF NORTH AMERICA. 
A.— JURASSIC. 
1. Laopteryx priscus Marsu. 
Laopteryx priscus Marsu, Am. Journ. Sci. XXI. 1881, 341. 
Upper Jurassic beds of Wyoming. 
B. — CRETACEOUS.’ 
2. Apatornis celer Marsu. 
Ichthyornis celer Marsu, Am. Journ. Sci. V. 1873, 74. 
Apatornis celery MarsH, Am. Journ. Sci. V. 1873, 162. 
Middle Cretaceous of western Kansas. 
3. Baptornis advenus Marsu. 
Baptornis advenus Marsu, Am. Journ. Sci. XIV. 1877, 86. 
Cretaceous of western Kansas, in the same beds with Odontor- 
nithes and Pteranodontia. 
4. Cimolopteryx rarus Marsu. 
Cimolopteryx rarus MarsH, Am. Journ. Sci. XLIV. 1892, 175, 
ply iene, 
Laramie beds of Wyoming. 
5. Cimolopteryx retusus Marsu. 
Cimolopteryx retusus Marsu, Am. Journ. Sci. XLIV. 1892, 175. 
Laramie beds of Wyoming. 
1The genera alphabetically arranged. 
