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Class: CEPHALOPODA
--- Taxon Tree: ORTHOCERATOIDEA [Subclass] - ORTHOCERIDA [Order]
------ Family: GREENLANDOCERATIDAE Shimizu & Obata, 1935 † (Sea) (FOSSIL)
DB counters: Genus=1, Subgenus=0, Species=1, Subspecies=0 ( 0 Species and 0 Subspecies have images)
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Genus: Greenlandoceras Shimizu & Obata, 1935 † (DB: 1 SP, 0 IMG)
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