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Batten R.L. (1989). Permian Gastropoda of the Southwestern United States: 7. Pleurotomariacea: Eotomariidae, Lophospiridae, Gosseletinidae. American Museum Novitates. 2958: 1-64.
Batten R.L. (1989). Permian Gastropoda of the Southwestern United States: 7. Pleurotomariacea: Eotomariidae, Lophospiridae, Gosseletinidae. American Museum Novitates. 2958: 1-64.
