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  • Usage in publication:
    • Fishtooth sandstone*
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Powder River basin
Publication:

Gill, J.R., Merewether, E.A., and Cobban, W.A., 1970, Stratigraphy and nomenclature of some Upper Cretaceous and lower Tertiary rocks in south-central Wyoming: U.S. Geological Survey Professional Paper, 667, 53 p.


Summary:

Is an informal sandstone unit in lower part of Steele Shale. Is shown only on correlation chart of Upper Cretaceous rocks in south-central WY and nearby areas (table 1) under the column for Powder River basin (Salt Creek). Is correlated with an unnamed sandstone in the Cody Shale in southeastern Wind River basin. Is shown to be correlative with the lower Campanian SCAPHITES HIPPOCREPIS III Western Interior ammonite zone.

Source: GNU records (USGS DDS-6; Denver 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 ([ ]).

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