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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Perisphinctidae
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Aulacostephanus
Choffatia
Cobbanites
Cubasphinctes
Dichotomoceras
Grossouvria
Idoceras
Leptosphinctes
Perisphinctes
Procerites
Rasenia
Siemiradzkia
Subplanites
Virgatosphinctes
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