Usage:
Oso Ridge Member of Abo Formation (NM*)
Geologic age:
Late Pennsylvanian (Virgilian) to early Permian (Wolfcampian)*
Type section, locality, area and/or origin of name:
Type section: in NW/4 sec. 19, T. 11 N., R. 13 W., Cibola Co., NM. Named from Oso Ridge in Zuni Mountains (Armstrong and others, 1994).
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 ([ ]).