Class: CEPHALOPODA --- Taxon Tree: AMMONOIDEA [Subclass] - GONIATITIDA [Order] - NEOICOCERATOIDEA [Superfamily] ------ Family: SPIROLEGOCERATIDAE Nassichuk, 1970 † (Sea) --------- SubFamily: SPIROLEGOCERATINAE ------------ Genus: Archboldiceras Leonova & Shilovsky, 2007 †
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