Vol. s3-27, Issue 161, 1884May 01, 1884 EDT
Principal Characters of American Cretaceous Pterodactyls; Part 1, the Skull of Pteranodon
Principal Characters of American Cretaceous Pterodactyls; Part 1, the Skull of Pteranodon
Othniel Charles Marsh,
Marsh, O. C. (1884). Principal characters of American Cretaceous pterodactyls; Part 1, The skull of Pteranodon. American Journal of Science, s3-27(161), 423–426. https://doi.org/10.2475/ajs.s3-27.161.423