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Class: CEPHALOPODA
--- Taxon Tree: NAUTILOIDEA [Subclass] - ELLESMEROCERIDA [Order]
------ Family: ELLESMEROCERATIDAE Kobayashi, 1934 † (Sea)
------------ Genus: Annoceras Flower, 1964 †
--------------- Species: Annoceras costatum Flower, 1964 † - ID: 6776000005
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New York FOSSIL Ordovician
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synonyms: |
Ellesmeroceras angulatum Flower, 1964 †
Annoceras elevatum Flower, 1964 †
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Ellesmeroceras fusiforme Flower, 1964 †
Ellesmeroceras imbricatum Flower, 1964 †
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Eremoceras magnum Flower, 1964 †
Annoceras perobliquum Foerste, 1964 †
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Eremoceras perseptatum Flower, 1964 †
Ellesmeroceras progressum Flower, 1964 †
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