The Pleistocene of North America / and its vertebrated animals from the states east of the Mississippi River and from the Canadian provinces east of longitude 95°

by Oliver Perry Hay

MARYLAND AND DISTRICT OF COLUMBIA.

(Map [16].)

1. Upper Marlboro, Prince George’s County.—In B. L. Miller’s geological report on this county (Maryland Geol. Surv., 1911, pp. 125, 126) it is stated that a right humerus of a mammoth, as determined by J. W. Gidley, had been found at the road crossing of Cabin Branch, near the western branch of Patuxent River. The bone was sent to Georgetown University, Washington, D. C.

2. Washington.—In the Prince George’s County volume of the Maryland Geological Survey, 1911, page 123, Dr. B. L. Miller stated that a tooth of Elephas americanus (E. primigenius probably) had been found in Wicomico materials in the pits of a Washington brick company, at a depth of 35 feet. The brickyard was bounded by Florida and Trinidad avenues and the Bladensburg turnpike. What has become of this tooth is not known, nor can one be certain that the tooth was not that of E. columbi. It may with safety be referred to an early stage of the Pleistocene.