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Rhynchonellata - Atrypida - Atrypidae
It was corrected as Plectatrypa by Mitchell (1977) and Sepkoski (2002).
It was assigned to Carinatininae by Bassett and Cocks (1974) and Mitchell (1977); to Atrypidae by Jin and Chatterton (1997); and to Atrypida 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.