Usage:
Bidahochi Formation (AZ*,NM*)
Geologic age:
late Tertiary (Miocene and Pliocene)*
Type section, locality, area and/or origin of name:
[Type locality not stated by Regan (1924), but fm. is mapped 15 to 20 mi. to east and north of settlement of Bidahochi (p. 355), near Twin Buttes, northeastern AZ.]
Reference section: exposed along Pueblo Colorado Wash, 15 mi east of Bidahochi [near Indian Wells], Navajo Co., northeastern AZ (Repenning and Irwin, 1954).
AAPG geologic province:
Black Mesa basin*
San Juan 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 ([ ]).