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Bivalvia - Carditida - Crassatellidae
It was reranked as Eucrassatella (Spissatella) by Gazdzicki and Pugaczewska (1984).
It was assigned to Eucrassatella by Gazdzicki and Pugaczewska (1984); to Crassatellidae by Marwick (1960), Fleming (1966) and Beu et al. (1990); and to Veneroida 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.