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†Cylicioscapha Yochelson 1956
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†Cylicioscapha Yochelson 1956
Yochelson 1956. Permian Gastropoda of the Southwestern United States. 1. Euomphalacea, Trochonematacea, Pseudophoracea, Anomphalacea, Cras-pedostomatacea, and Platyceratacea. Bulletin of the American Museum of Natural History, 110(3) 1956: 173-276