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Cephalopoda - Ammonitida - Haploceratidae
It was reranked as Haploceras (Neolissoceras) by Avram and Gradinaru (1993).
It was assigned to Haploceras by Avram and Gradinaru (1993); to Ammonoidea by Sepkoski (2002); and to Haploceratidae by Wright et al. (1996), Arkadiev et al. (2000) and Vasicek (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.