Usage:
Ector Tongue of Austin Chalk (TX*)
Ector Chalk of Austin Group (LA,TX)
Geologic age:
Late Cretaceous (Gulfian Provincial Epoch)*
Type section, locality, area and/or origin of name:
Named from Ector, Fannin Co., TX. Ector is a few hundred yards west of the belt of outcrop (Stephenson, 1918).
AAPG geologic province:
South Oklahoma folded belt*
Ouachita 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 ([ ]).