Usage:
Mulatto Tongue of Mancos Shale (NM*)
Geologic age:
Late Cretaceous (Coniacian)*
Type section, locality, area and/or origin of name:
Named from exposures at south end of Canyon Mulatto, 9 mi northwest of San Mateo, in T. 14 N., R. 9 W., McKinley Co., NM (Hunt, 1936).
AAPG geologic province:
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 ([ ]).