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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Atrypida
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Atrypinidae
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Atrypina
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Atrypina arenacea
Atrypina erugata
Atrypina gamachiana
Atrypina hami
Atrypina oklahomensis
Atrypina prosimpsoni
Atrypina simpsoni
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Atrypina arenacea