Vol. s3-45, Issue 265, 1893January 01, 1893 EDT
A New Cretaceous Bird Allied to Hesperornis.
A New Cretaceous Bird Allied to Hesperornis.
Othniel Charles Marsh,
Marsh, O. C. (1893). A new Cretaceous bird allied to Hesperornis. American Journal of Science, s3-45(265), 81–82. https://doi.org/10.2475/ajs.s3-45.265.81