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Class: CEPHALOPODA
--- Taxon Tree: NAUTILOIDEA [Subclass] - ELLESMEROCERIDA [Order]
------ Family: CYRTOCERINIDAE Flower, 1946 † (Sea) (FOSSIL)
DB counters: Genus=1, Subgenus=0, Species=4, Subspecies=0 ( 1 Species and 0 Subspecies have images)
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Genus: Cyrtocerina Billings, 1865 † (DB: 4 SP, 1 IMG)
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