Usage:
Tyler Greensand Member of Sparta Sand of Claiborne Group (TX-recognized locally in Tyler and Swan area)
Geologic age:
Tertiary
Eocene
Type section, locality, area and/or origin of name:
Well exposed throughout city of Tyler, and west and northwest of Swan, Smith Co., TX (Wendlandt and Knebel, 1929).
AAPG geologic province:
East Texas 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 ([ ]).