|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Bivalvia - Unionida
It was corrected as Unionida by Carter et al. (2011).
It was assigned to Paleoheterodonta by Shoshani et al. (1989); to Bivalvia by Sepkoski (2002); to Palaeoheterodonta by Vokes (1980), Beu et al. (1990), Giribet and Wheeler (2002) and Bieler and Mikkelsen (2006); to Autobranchia by Nevesskaja (2009); and to Unionata by Carter et al. (2011).
|Year||Name and author|
|1980||Unionoida Vokes p. 71|
|1989||Unionoida Shoshani et al. p. 435|
|1990||Unionoida Beu et al. p. 396|
|2002||Unionoida Giribet and Wheeler|
|2002||Unionoida Sepkoski, Jr.|
|2006||Unionoida Bieler and Mikkelsen p. 230|
|2011||Unionida Carter et al. p. 12|
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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.