ecofactbook
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species
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Animalia
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Brachiopoda
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Rhynchonellata
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Spiriferinida
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Pennospiriferinidae
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Arionthia
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Arionthia alata
Arionthia blothrhachis
Arionthia germana
Arionthia lamaria
Arionthia polypleura
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Arionthia alata