BioStor
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 | Fossils from the upper Musashineo of Kazusa and Shimosa M Yokoyama (1922) Journal of the College of Science, Imperial University of Tokyo 44: 1-200 |
 | Classification and Nomenclator of Gastropod Families Philippe Bouchet and Jean-Pierre Rocroi (2005) Malacologia 47(1-2): 1-397 |