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

WISCONSIN.

(Map [24].)

1. Menomonie, Dunn County.—From Professor S. Weidman, of the Wisconsin Geological and Natural History Survey, the writer received a part of an antler of a female or a young individual of some species of Rangifer. Professor Weidman sends the information that this was obtained in a sand formation just below the clays worked at Menomonie for brick. He regards the brick-clays as being of Sangamon interglacial age. He states, too, that a part of a leg-bone believed to belong to a mastodon had been found in the clays; also bones of a fish, which have been identified by Dr. Hussakof as the Mackinaw trout, Cristivomer namaycush (Jour. Geology, vol XXIV, pp. 685–689, figs. 1, 2).

Probably the caribou represented by this specimen lived in that region at the beginning or at the close of some one of the glacial stages, when the climate was yet severe. The supposed mastodon bone may have belonged to Elephas primigenius. It is described on page [111].

At a later time Dr. Weidman sent the writer a large part of the beam of an antler of a caribou which likewise had been found in the lacustrine clay at Menomonie. It was met with in the red clay, near the top of the lacustrine clay bed.