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Bivalvia - Modiomorphida - Modiomorphidae
It was reranked as Sanguinolites (Goniophora) by Herrick (1888).
It was assigned to Sanguinolites by Herrick (1888); to Modiomorphidae by Cox et al. (1969) and Vokes (1980); to Modiomorphinae by Liljedahl (1994); and to Modiomorphoida by Sepkoski (2002).
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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.