National Geologic Map Database
General Information
- Title: Physical and faunal evolution of North America during Ordovicic, Siluric, and Early Devonic time
- Author(s): Grabau, A.W.
- Publishing Organization: University of Chicago Press
- Series and Number: Journal of Geology v. 17, no. 3 [p. 209-252]
- Publication Date: 1909
- Cross Section: None
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