Usage:
Tenderfoot Member of Moenkopi Formation (CO*,UT*)
Geologic age:
Triassic(?)*
Type section, locality, area and/or origin of name:
Type section: east side of Sinbad Valley, in sec. 15, T. 49 N., R. 19 W., Mesa Co., southwestern CO. Named from Tenderfoot Mesa, Mesa Co., southwestern CO, where it constitutes whole of formation on north side of mesa (Shoemaker and Newman, 1959).
AAPG geologic province:
Piceance 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 ([ ]).