No current usage.
(†Rattlesnake Formation or †Rattlesnake Beds (TX) replaced with Aguja Formation. See Aguja.)
Late Cretaceous (Campanian to Maastrichtian)
Named from Rattlesnake Mountain, a dissected low dome on east side of lower Terlingua Creek, about 4 mi south of Big Bend Post Office, southern Brewster Co., TX (Udden, 1907).
Permian 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 ([ ]).