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Gastropoda - Pyramidellidae
It was reranked as Pyramidella (Longchaeus) by Oostingh (1935) and Pilsbry and Olsson (1941).
It was assigned to Pyramidella by Oostingh (1935) and Pilsbry and Olsson (1941); to Pyramidellidae by Todd (2001); to Heterostrophia by Sepkoski (2002); and to Pyramidellinae by Rosenberg (2005).
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.