The Fossils and Stratigraphy of the Middle Devonic of Wisconsin Bedrock Geology Fossils Data and Resources B021 The Fossils and Stratigraphy of the Middle Devonic of Wisconsin Cleland, H.F.; 1911 Report: 222 p. Download B021-map01 Geologic Map of Eastern Wisconsin Cleland, H.F.; 1911 Download Related Collections Bulletin View Bulletin