ecofactbook
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species
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Animalia
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Arthropoda
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Trilobita
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Asaphida
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Asaphidae
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Asaphellus
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Asaphellus artus
Asaphellus aspinus
Asaphellus catamarcensis
Asaphellus communis
Asaphellus homfrayi
Asaphellus obtectus
Asaphellus riojanus
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Asaphellus artus