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Bivalvia - Anomalodesmata
It was reranked as the order Anomalodesmata by Giribet and Wheeler (2002) and Bieler and Mikkelsen (2006).
It was assigned to Pelecypoda by Ward and Blackwelder (1987); to Bivalvia by Vokes (1980), Cope (1997), Reid (1998) and Aberhan (2004); and to Heterodonta by Giribet and Wheeler (2002) and Bieler and Mikkelsen (2006).
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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.