Usage:
Janssen Clay Member of Dakota Formation (KS*)
Geologic age:
Late Cretaceous*
Type section, locality, area and/or origin of name:
Type area: near Janssen Station, in center south line of sec. 3, T. 16 S., R. 9 W., Ellsworth Co., KS (Plummer and Romary, 1942).
AAPG geologic province:
Central Kansas uplift*
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 ([ ]).