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

MICHIGAN.

(Map [23].)

1. Adrian, Lenawee County.—In 1880, Professor J. Kost, of Adrian College, sent to the U. S. National Museum a skull of Castoroides ohioensis and a jaw of a mastodon found in a marsh in the town of Adrian, at a depth of 4 feet. At the same place another mastodon, together with bones of a deer and of an elk, had previously been secured. These belong to a late period in the Wisconsin.

2. Ann Arbor, Washtenaw County.—In 1908 (Folio 155, U. S. Geol. Surv., p. 9), Russell and Leverett told of the finding of bones of elk and deer in a peat-swamp, 3 miles south of Ann Arbor. In the same swamp, at a depth of 5 feet, a skull of Castoroides ohioensis had been discovered. The bones of the elk and deer were at a somewhat higher level. While they are probably of late Pleistocene age, one can not be wholly sure of it.