Usage:
Arroyo Penasco Group (NM*)
Arroyo Penasco Formation (NM)
Subunits:
(alphabetical) --all in NM*: Espiritu Santo Formation, Tererro Formation.
Geologic age:
Mississippian (Osagean to Chesterian)*
Type section, locality, area and/or origin of name:
Type section: in Pinos and Penasco Canyons, Nacimiento Mountains, in SW/4 SE/4 sec. 5, T. 16 N., R. 1 E., near northwest corner of Jemez Indian Reservation, [San Ysidro 15-min quadrangle], Sandoval Co., northern NM. Named from the Penasco Arroyo, 1 mi southeast of type section (Armstrong, 1955).
AAPG geologic province:
Estancia basin*
Las Vegas-Raton basin*
Palo Duro basin*
San Juan basin*
San Luis basin*
Sierra Grande uplift
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 ([ ]).