The geologic record of the Paleogene (Paleocene, Eocene, and Oligocene) crabs of North America is recorded in a scattered literature loosely tied together by two monographs written by Mary J. Rathbun (1926 and 1935). Since these syntheses, no comprehensive review of decapod work in the Early Tertiary of North America has been attempted. The purpose of this note is to draw the literature and its information together into a single source, and, as far as possible, synthesize the distribution, occurrence, and preservational aspects of the known faunas, illustrating parts of them to stimulate the search for and collection of...