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National Geologic Map Database
Geologic Unit: Fargo
Map showing publication footprint
  • Usage in publication:
    • Fargo Bed
  • Modifications:
    • Overview
  • Dominant lithology:
    • Limestone
  • AAPG geologic province:
    • Appalachian basin
Publication:

Miller, K.B., 1990, Paleoecology and sedimentology of Middle Devonian short term sea level fluctuations recorded within the Wanakah Shale Member of western New York, IN Lash, G.G., ed., Western New York and Ontario; field trip guidebook: New York State Geological Association Guidebook, 62nd annual meeting, Fredonia, NY, no. 62, p. Sun C1-C30.


Summary:

Fargo Bed (of Kloc, 1983) described as a thin persistent calcareous bed with diverse fauna characteristic of the Lakeview Bed. Fargo overlies the Darien Coral Bed. All are assigned to the Darien Center Submember of the Wanakah Shale Member of the Ludlowville Formation, along with several other beds. The Fargo and the shales immediately above and below are characterized by the presence of large articulated brachiopods. The Wanakah and all its beds are Middle Devonian.
["Submember" not recognized as a formal stratigraphic rank term (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). Considered informal until formally published. The rank or lithologic term should not be capitalized.]

Source: GNU records (USGS DDS-6; Reston GNULEX).


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).