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Class: CEPHALOPODA
--- Taxon Tree: ORTHOCERATOIDEA [Subclass] - ORTHOCERIDA [Order]
------ Family: LAMELLORTHOCERATIDAE Teichert, 1961 † (Sea) (FOSSIL)
DB counters: Genus=2, Subgenus=0, Species=3, Subspecies=0 ( 1 Species and 0 Subspecies have images)
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Genus: Arthrophyllum Beyrich, 1850 † (syn: Lamellorthoceras - DB: 3 SP, 1 IMG)
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