Usage:
Naturita Formation of Dakota Group (AZ,CO,NM,UT)
Geologic age:
late Early to early Late Cretaceous (Albian to Cenomanian)
Type section, locality, area and/or origin of name:
Named from exposures near Naturita, [Montrose Co.], southwestern CO (Young, 1959, 1960).
Type section: north side of San Miguel River, about 2,000 ft northwest of Nucla coal power plant, [near center sec. 15], T. 46 N., R. 15 W., [in vicinity of Lat. 38 deg. 14 min. 30 sec. N., Long. 108 deg. 30 min. 30 sec. W., Naturita 7.5-min quadrangle], Montrose Co., CO (Young, 1965).
AAPG geologic province:
Paradox basin
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 ([ ]).