National Geologic Map Database
General Information
- Title: Upper Cretaceous (Maastrichtian) ammonites from the Nostoceras alternatum Zone in southwestern Arkansas
- Author(s): Cobban, W.A., and Kennedy, W.J.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Bulletin 1985 [p. E1-E6]
- Larger Work: Sando, W.J., ed., Shorter contributions to paleontology and stratigraphy
- Publication Date: 1991
- Cross Section: None
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