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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Ptychopariida
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Elviniidae
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Elvinia
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Elvinia brevifrons
Elvinia bridgei
Elvinia dakotensis
Elvinia granulata
Elvinia gregalis
Elvinia longa
Elvinia matheri
Elvinia missouriensis
Elvinia montis
Elvinia shumardi
Elvinia texana
Elvinia utahensis
Elvinia vagans
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Elvinia brevifrons