Pg. 594-595. Nebraska or Loup Fork proper. Second or middle horizon of Loup Fork. Covers a vast area from Nebraska to Mexico. Characterized by COSORYX. Underlies Palo Duro horizon and is younger than Deep River horizon of Loup Fork of Montana. [Age is Miocene.]
[Named from State of Nebraska.]
Source: US geologic names lexicon (USGS Bull. 896, p. 1470).
Pg. 65, 79. Assigned these beds to upper Miocene and to lower part of Ogallala formation, and stated (footnote, p. 79): Under misapprehension of Scott's definition of "Nebraska," both Hatcher [Amer. Phil. Soc. Proc., v. 41, p. 117, 1902] and Peterson [Carnegie Mus. Annals, v. 2, p. 473, 1904] first applied this term to part of the lower Arikaree or lower Miocene.
Source: US geologic names lexicon (USGS Bull. 896, p. 1470).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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