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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Redlichiida
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Olenellidae
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Olenellus
Olenellus apsis
kingdom: Animalia
phylum: Arthropoda
class: Trilobita
order: Redlichiida
family: Olenellidae
genus: Olenellus
species: Olenellus apsis
Where does Olenellus apsis live?
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