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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Corynexochida
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Leiostegiidae
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Agerina
Annamitella
Chiawangella
Cholopilus
Chuangia
Chuangiella
Leiostegium
Lloydia
Prochuangia
Pseudocalymene
Reubenella
Tinaspis
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Agerina