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Gastropoda - Ptychomphalidae
It was reranked as Pleurotomaria (Ptychomphalus) by Licharew (1913).
It was assigned to Pleurotomaria by Licharew (1913); to Ptychomphalides by Knight et al. (1960); to Eotomariidae by Szabo (1980); to Archaeogastropoda by Sepkoski (2002); and to Ptychomphalidae by Bandel (2009).
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