U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

General Information

  • Title: Middle and Upper Ordovician symmetrical univalved mollusks (Monoplacophora and Bellerophontina) of the Cincinnati arch region
  • Author(s): Wahlman, G.P.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Professional Paper 1066-O [p. O1-O203]
  • Larger Work: Pojeta, John, Jr., ed., Contributions to the Ordovician paleontology of Kentucky and nearby states
  • Publication Date: 1992
  • Map Scale: 1:21,297,507
  • Cross Section: None
  • Find more maps in this area with mapView
  • Corrections to this entry?
* See base map disclaimer below

Map Preview

(Click image to enlarge)

Downloads from the NGMDB

Poor quality image? Let us know

Additional Resources

* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.