Usage:
Pyramid Formation (NV)
Geologic age:
Tertiary
Miocene, middle
Type section, locality, area and/or origin of name:
Type section: in vicinity of Pyramid fossil plant locality (in S/2 sec. 4, T. 23 N., R. 21 E.) in Mullen Pass several mi west of Pyramid Lake and 0.5 mi north of State Highway 445, Washoe Co., western NV. Origin of name not stated by author, but probably named from Pyramid Lake, or town of Pyramid on lake's western shore (Axelrod, 1992).
AAPG geologic province:
Southern Oregon 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 ([ ]).