Usage:
Ellenburger Group (NM?,TX*)
Ellenburger Limestone (TX)
Ellenburger Formation (NM?)
Subunits:
GROUP STATUS (alphabetical) --all in TX*: Gorman Formation, Honeycut Formation, Tanyard Formation.
Geologic age:
Early Ordovician*
Type section, locality, area and/or origin of name:
Not designated. Named from Ellenburger Hills, Burnet Co., TX (Paige, 1912).
Type section: composite Tanyard-Gorman section adjoining the Ellenburger Hills. Section is relatively inaccesible. Combined Moore Hollow and Warren Springs sections south of Llano, Llano Co., [TX], are designated as standard section (Cloud and Barnes, 1948).
AAPG geologic province:
Llano 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 ([ ]).