ecofactbook
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species
/
Animalia
/
Chordata
/
Mammalia
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Artiodactyla
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Merycoidodontidae
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Merychyus
/
Merychyus arenarum
Merychyus elegans
Merychyus major
Merychyus medius
Merychyus minimus
Merychyus siouxensis
Merychyus smithi
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Merychyus arenarum