Torrejonian age*
A provincial North American land mammal age (NALMA). Between Puercan and Tiffanian.
Tertiary
Paleocene, early
Name based on Torrejon Formation of the San Juan basin, NM (Wood and others, 1941).
North America
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 ([ ]).