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Gastropoda - Ranellidae
It was reranked as Cymatium (Septa) by Ladd (1977), Squires (1983), Todd (2001) and Beu (2005).
It was assigned to Neotaenioglossa by Sepkoski (2002); to Cymatium by Ladd (1977), Squires (1983), Todd (2001) and Beu (2005); and to Ranellinae by Beu (2010).
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