- Usage in publication:
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- Barstovian age
- Modifications:
-
- Original reference
- AAPG geologic province:
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- Mojave basin
Summary:
Pg. 12, pl. 1. Barstovian age. Provincial time term based on Barstow formation, San Bernardino County, California, and specifically on fossiliferous tuff member in Barstow syncline and its fauna. Covers interval between Hemingfordian (Miocene) and Clarendonian (Pliocene) ages. [In upper part of Miocene; = MONOSAULAX faunal zone.] Report defines 18 provincial time terms, based on mammal-bearing units, for North American continental Tertiary. [For sequence see under Puercan.]
Source: US geologic names lexicon (USGS Bull. 1200, p. 223).
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 ([ ]).