ecofactbook
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species
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Animalia
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Mollusca
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Cephalopoda
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_
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Proteoceratidae
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Ephippiorthoceras
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Ephippiorthoceras altocameratum
Ephippiorthoceras baffinense
Ephippiorthoceras compressum
Ephippiorthoceras plicatulum
Ephippiorthoceras schucherti
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