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Cephalopoda - Phylloceratida - Palaeophyllitidae
It was reranked as Monophyllites (Palaeophyllites) by Renz and Renz (1948).
It was assigned to Monophyllites by Renz and Renz (1948); to Ussuritidae by Tozer (1981); to Phylloceratitida by Sepkoski (2002); and to Palaeophyllitidae by Zakharov and Smyshlyaeva (2016).
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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.