New Data on the Upper Devonian of Iowa

A recently discovered exposure of fossiliferous beds of Upper Devonian age in Iowa County, Iowa, containing a rich and well preserved fauna, is believed to be of unusual interest and significance. These beds were uncovered by the road grader and extend along the north side of the road across Section 29, Amana Township, for a distance of about a mile. The exposure begins a few rods west of the limits of Middle Amana and with exception of two or three interruptions by ravines, is continuous to the point where it disappears under the Hohe Amana outlier of Des Moines sandstone. The beds are overlain by glacial till and their base is nowhere exposed. The maximum thickness of the exposure is about eight feet