|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Gastropoda - Ptychomphalidae
It was reranked as Pleurotomaria (Ptychomphalina) by Perner (1907); it was synonymized subjectively with Mourlonia by Knight et al. (1960).
It was assigned to Pleurotomaria by Perner (1907); to Ptychomphalinides by Gordon and Yochelson (1987); to Archaeogastropoda by Sepkoski (2002); and to Ptychomphalinae by Bouchet et al. (2005).
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.