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Chondrichthyes - Ctenacanthiformes
It was corrected as Ctenacanthiformes by Goto and Okura (2004), Ginter et al. (2005), Ginter et al. (2010) and Long (2011).
It was assigned to Elasmobranchii by Goto and Okura (2004); to Chondrichthyes by Sepkoski (2002) and Ginter et al. (2005); to Cladodontomorphi by Ginter et al. (2010); and to Euselachii by Long (2011).
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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.