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species
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Animalia
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Brachiopoda
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Rhynchonellata
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Terebratulida
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Notothyrididae
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Alwynia
Anaptychius
Chondronia
Cryptacanthia
Enallosia
Gefonia
Glossothyropsis
Notothyris
Obnixia
Rostranteris
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Alwynia