Stanton, T. W. (1947) Studies of some Comanche pelecypods and gastropods: U. S. Geological Survey Prof. Paper 211, Washington, D. C.

Describes and illustrates most of the more common Lower [Cretaceous] pelecypods and gastropods of the State.

*Stenzel, H. B., Krause, E. K., and Twining, J. T. (1957) Pelecypoda from the type locality of the Stone City beds ([Eocene]) of Texas: Univ. Texas Pub. 5704.

Descriptions and illustrations of many of the more common [Tertiary] clams and oysters.

*Stephenson, L. W. (1941) The larger invertebrate fossils of the Navarro group of Texas: Univ. Texas Pub. 4101.

Contains descriptions of many common Upper [Cretaceous] invertebrates (exclusive of corals and crustaceans).

Stephenson, L. W. (1952) Larger invertebrate fossils of the Woodbine [formation] (Cenomanian) of Texas: U. S. Geological Survey Prof. Paper 242, Washington, D. C.

*Winton, W. M. (1925) The geology of Denton County: Univ. Texas Bull. 2544.

Illustrates and discusses the occurrence of many [Cretaceous] fossils.

*Winton, W. M., and Adkins, W. S. (1920) The geology of Tarrant County: Univ. Texas Bull. 1931.