Usage:
Sly Gap Formation (NM*)
Geologic age:
early Late Devonian (Frasnian)*
Type section, locality, area and/or origin of name:
In sec. 25, T. 11 S., R. 5 E., Sierra Co., NM (Stevenson, 1945).
Type section: south slope of Sheep Mountain, San Andres Mountains, Sierra Co., NM (Cooper and Dutro, 1982).
AAPG geologic province:
Orogrande 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 ([ ]).