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Gastropoda - Trochidae
It was reranked as Colliculus by Lozouet et al. (2001) and Sepkoski (2002).
It was assigned to Trochinae by Lozouet et al. (2001); to Archaeogastropoda by Sepkoski (2002); and to Gibbula by Monterosato (1888) and Mandic and Steininger (2003).
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.