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Class: CEPHALOPODA --- Taxon Tree: AMMONOIDEA [Subclass] - AMMONITIDA [Order] - PERISPHINCTOIDEA [Superfamily] ------ Family: OLCOSTEPHANIDAE Haug, 1910 † (Sea) ------------ Genus: Mexicanoceras Imlay , 1938 †
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Please email your image to: Claudio Galli - last updated: 28/ago/2017
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