|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
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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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.