|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Gastropoda - Acteoninidae
It was reranked as Actaeonina (Ovactaeonina) by Spath (1947); it was reranked as Colostracon (Ovactaeonina) by Kase (1984).
It was assigned to Actaeonina by Spath (1947); to Colostracon by Kase (1984); and to Cephalaspida by Sepkoski (2002).
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.