Pg. 4, 7. Bader limestone formation of Council Grove group. About 24.5 feet thick, includes (descending) Middleburg limestone 4 feet, Hooser shale 11 feet, and Eiss limestone about 9.5 feet. Overlies Stearns shale formation and underlies Easly Creek shale formation, both of Council Grove group. Recognized in southeastern Nebraska and northeastern Kansas. Age is Permian (Big Blue).
[Origin of name not stated.]

Source: US geologic names lexicon (USGS Bull. 896, p. 99); GNC KS-NE Permian Corr. Chart, Oct. 1936.

Pg. 61-62. Contains (ascending) Eiss limestone, Hooser shale, and Middleburg limestone, units that were named by Condra as members of the Garrison formation. Type exposure noted.
Type exposure: near Bader, Chase Co., northeastern KS.

Source: US geologic names lexicon (USGS Bull. 1200, p. 190).

Pg. 46. Bader limestone. Underlies Easly Creek shale; overlies Stearns shales. Age is Early Permian (Wolfcamp).

Source: US geologic names lexicon (USGS Bull. 1200, p. 190).

(Paleozoic Era; Permian System by H.G. O'Connor, D.E. Zeller, C.K. Bayne, J.M Jewett, and Ada Swineford, p. 47.) Bader Limestone of Council Grove Group. In Kansas, consists of two limestone members separated by a shale member [Eiss Limestone Member, Hooser Shale Member, Middleburg Limestone Member]. Thickness 15 to 33 feet. Occurs above Stearns Shale and below Easly Creek Shale, both of Council Grove Group. Age is Early Permian; Gearyan Provincial Stage (of H.G. O'Connor, 1963, AAPG Bull., v. 47, p. 1873-1877).

Source: Publication.