- Usage in publication:
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- Uintan age
- Modifications:
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- Original reference
- AAPG geologic province:
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- Uinta basin
Summary:
Pg. 10, pl. 1. Uintan age. Provincial time term, based on Uinta formation of northern Utah, that is, time of deposition of Uinta A-C, inclusive (pl. 1), with included faunas. Covers interval between Bridgerian and Duchesnean ages. [In middle to upper part of Eocene; = AMYNODON 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. 4009).
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 ([ ]).