No current usage.
(†Allen Limestone (KS,MO) replaced with Plattsburg Limestone of Lansing Group. See Plattsburg.)
Late Pennsylvanian
Named from Allen, Lyon Co., southeastern KS (US geologic names lexicons, USGS Bull. 896, 1200).
Cherokee basin
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 ([ ]).