| Achaenodon Temporal range: Mid-to-Upper Eocene
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|---|---|
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| Reconstruction of the skull of Achaenodon robustus | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Family: | †Helohyidae |
| Genus: | †Achaenodon Cope, 1873 |
| Type species | |
| †Achaenodon insolens Cope, 1873
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| Other species | |
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Achaenodon is an extinct artiodactyl mammal, possibly belonging to the family Helohyidae. It lived in the mid-late Eocene (about 43-39 million years ago) and its fossil remains have been found in North America.[1]