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General Information

  • Title: Ammonites and some characteristic bivalves from the Upper Cretaceous Frontier Formation, Natrona County, Wyoming
  • Author(s): Cabbon, W.A.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Bulletin 1917-B
  • Larger Work: Evolution of sedimentary basins - Powder River Basin
  • Publication Date: 1990
  • Map Scale: 1:682,000
  • Cross Section: None
  • North Latitude: 43° 30' 0" N (43.5000)
  • South Latitude: 42° 26' 38" N (42.4440)
  • East Longitude: 106° 3' 22" W (-106.0560)
  • West Longitude: 107° 30' 54" W (-107.5150)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.