|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Gastropoda - Euomphalina - Platyceratidae
It was Cyclonema (Ploconema) by Knight et al. (1960); it was reranked as Ploconema by Sepkoski (2002) and Wagner (2017).
It was assigned to Craspedostoma by Perner (1903); to Cyclonema by Knight et al. (1960); to Archaeogastropoda by Sepkoski (2002); and to Platyceratidae by Wagner (2017).
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.