|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Gastropoda - Trochidae
It was reranked as Trochus (Ziziphinus) by Gray (1847) and Seguenza (1885); it was reranked as Calliostoma (Ziziphinus) by Vaught et al. (1989).
It was assigned to Trochus by Gray (1847) and Seguenza (1885); to Calliostoma by Vaught et al. (1989); and to Archaeogastropoda 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.