Altona Dolomite Member of Blaine Formation of El Reno Group (OK*)
early Permian (Leonardian)*
Named from Altona Post Office, western part of Kingfisher Co., central OK (US geologic names lexicons, USGS Bull. 896, 1200).
Anadarko basin
Chautauqua platform
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 ([ ]).