Usage:
Glen Eyrie Shale Member of Fountain Formation (CO*)
Glen Eyrie Formation (CO)
Geologic age:
Pennsylvanian, Early*
Morrowan*
Type section, locality, area and/or origin of name:
Not designated. Named from Glen Eyrie Creek, [west of Manitou, El Paso Co.], CO (Finlay, 1907).
AAPG geologic province:
Las Animas arch*
Denver 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 ([ ]).