Mazaev A.V. (2003). The Family Orthonemidae (Gastropoda) from Middle and Upper Carboniferous of the Central Part of the Russian Plate. Ruthenica: The Russian Malacological Journal. 13(2): 89-101.
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Mazaev A.V.
2003
The Family Orthonemidae (Gastropoda) from Middle and Upper Carboniferous of the Central Part of the Russian Plate