[1] It forms the lower half of the Eagle Ford Group in the northern portion of East Texas.

The formation was named by W. L. Moreman in 1932 for outcrops on Mountain Creek near the small town of Britton, south of Dallas.

[1][3] The Six Flags Limestone is a 3 ft (1 m) thick fossiliferous calcarenite made up of pieces (prisms) of Inoceramus clams.

The Templeton Member was originally described as a part of the Woodbine,[5] but it was recently placed in the Britton Formation of the Eagle Ford Group based on its age as derived by ammonites.

[6] Invertebrate fossils found in the Britton Formation include crustaceans, ammonites, Inoceramus, foraminifera, and ostracods.