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  • Usage in publication:
    • Flatiron coquinite member
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Coquinite
  • AAPG geologic province:
    • Appalachian basin
Publication:

Willard, Bradford, Swartz, F.M., and Cleaves, A.B., 1939, The Devonian of Pennsylvania: Pennsylvania Geological Survey General Geology Report, 4th series, no. 19-G, 481 p.


Summary:

(Footnotes by Bradford Willard, p. 14, 278.) Caster (1934) credited with renaming Roystone coquinite as Flatiron; Roystone here considered to be in good standing. Footnote (with initials of G.H. Ashley) states that "bed here named "Flat-iron" (Roystone) coquinite is same as Marvin Creek limestone of Ashburner" (1880).

Source: US geologic names lexicon (USGS Bull. 1200, p. 1367).


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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