In the summer of 1920 the writer visited the Eocene Badlands of western North Dakota, going there on the completion of a field course in geology in the Northern Black Hills. These badlands are situated in several counties bordering on the Little Missouri River. A thick series of sandstone, shale and lignite is exposed in the nearly barren and partly denuded hills. The beds have characteristic topographic expressions and can be traced long distances by these alone; the sandstones form benches and the shales gentle slopes. In one of these sandstone benches a number of small spheroidal bodies were noted. A casual blow of the hammer showed that they possessed two distinct parts, an outer covering and an inner core. At least twenty of them were broken and nearly all were similarly constructed, the core also showing a quadripartite division. A few of the better preserved ones were saved and these form the basis of this article.
Proceedings of the Iowa Academy of Science
©1923 Iowa Academy of Science, Inc.
Stainbrook, Merrill A.
"Apparent Fossil Fruits from the Fort Union Beds of North Dakota,"
Proceedings of the Iowa Academy of Science, 30(1), 455-458.
Available at: https://scholarworks.uni.edu/pias/vol30/iss1/73