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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Ammonoidea
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Nostoceratidae
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Helicoceras
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Helicoceras corrugatum
Helicoceras elegans
Helicoceras navarroense
Helicoceras pariense
Helicoceras plicatilis
Helicoceras rubeyi
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Helicoceras corrugatum