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Bivalvia - Pectinida - Annuliconchidae
It was reranked as Aviculopecten (Annuliconcha) by Shimer and Shrock (1944).
It was assigned to Aviculopecten by Shimer and Shrock (1944); to Aviculopectininae by Vokes (1980); to Pterioida by Sepkoski (2002); and to Annuliconchidae by Newell and Boyd (1995) and Bouchet et al. (2010).
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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.