|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Gastropoda - Protorculidae
It was reranked as Protorcula by Bandel (1991), Sepkoski (2002), Nützel et al. (2003) and Bouchet et al. (2005).
It was assigned to Undularia by Kittl (1894); to Neotaenioglossa by Sepkoski (2002); to Protoculidae by Nützel et al. (2003); and to Protorculidae by Bandel (1991) and 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.