Permian Gastropoda of the southwestern United States. 1. Euomphalacea, Trochonematacea, Pseudophoracea, Anomphalacea, Craspedostomatacea, and Platyceratacea. Bulletin of the AMNH ; v. 110, article 3
Bowsher, Arthur Leroy, 1917-1998 Yochelson, Ellis L. (Ellis Leon), 1928-2006
Book
1956
English
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