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Gastropoda - Pyramidellidae
It was corrected as Pyrimidella by Wenz (1938).
It was assigned to Heterostrophia by Sepkoski (2002); to Pyramidellinae by Rosenberg (2005); and to Pyramidellidae by Oostingh (1935), Wenz (1938), Kensley (1972), Todd (2001), Kosnik (2002) and Wienrich and Janssen (2007).
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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.