Title: Synopsis of the organic remains of the Cretaceous group of the United States : illustrated by nineteen plates ; to which is added an appendix, containing a tabular view of the Tertiary fossils hitherto discovered in North America /
Authors: Morton, Samuel George, 1799-1851.; Koninck, L. G. de 1809-1887.
Subjects: Paleontology; Paleontology United States