National Geologic Map Database
General Information
- Title: Summary of classification of the Pennsylvanian formations of Texas, with special reference to the Lower Pennsylvanian of the Llano region
- Author(s): Plummer, F.B.
- Publishing Organization: University of Chicago Press
- Series and Number: Journal of Geology v. 55, no. 3, pt. 2 [p. 193-201]
- Larger Work: Wanless, H.R., Symposium on Pennsylvanian problems
- Publication Date: 1947
- Map Scale: 1:1,760,000
- Cross Section: Yes
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Geologic units referred to in Geolex
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