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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Shumardiidae
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Shumardia
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Shumardia acuticaudata
Shumardia alata
Shumardia ctenata
Shumardia exopthalmus
Shumardia minaretta
Shumardia minutula
Shumardia nericiensis
Shumardia scotica
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