Statement of responsibility: By Othniel Charles Marsh
Half-title: Professional papers of the Engineer Department, U.S. Army. no. 18 (pt. 7).
Published also as Memoirs of the Peabody Museum of Yale College. Vol. I.
xv, 201p., 34 l : ill., XXXIV pl. (part fold.) ; 30 x 33 cm.
United States Geological exploration of the fortieth parallel. Report ; vol. 7
Paleontology North America.; Paleontology Mesozoic.; Birds, Fossil.
- Appendix: Synopsis of American Crteaceous birds.