Usage:
Springer Group (OK*)
Springer Formation of Noble Ranch Group (OK)
Subunits:
GROUP STATUS (alphabetical) --all in OK: Caney Shale*, Goddard Formation or Goddard Shale*, Lake Ardmore Sandstone*, Overbrook Sandstone*, Union Valley Formation.
FORMATION STATUS (alphabetical) --all in OK: Academy Church Shale Member, Lake Ardmore Sandstone Member, Overbrook Sandstone Member, Redoak Hollow Member*, Rod Club Sandstone Member.
Geologic age:
Middle Mississippian to Early Pennsylvanian (Visean to Bashkirian; Chesterian to Morrowan)*
Type section, locality, area and/or origin of name:
Type area: village of Springer, Carter Co., OK (Tomlinson, 1929).
AAPG geologic province:
South Oklahoma folded belt*
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 ([ ]).