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Gastropoda - Ranellidae
It was reranked as Ranella (Biplex) by Vredenburg (1925); it was reranked as Argobuccinum (Biplex) by Dey (1961).
It was assigned to Ranella by Vredenburg (1925); to Argobuccinum by Dey (1961); to Cymatiidae by MacNeil (1960) and Ladd (1977); to Ranellinae by Wilson (1993); to Neotaenioglossa by Sepkoski (2002); and to Ranellidae by Beu (2005).
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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.