| Lafonius Temporal range: Carboniferous,
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Order: | †Temnospondyli |
| Suborder: | †Dvinosauria |
| Family: | †Trimerorhachidae |
| Genus: | †Lafonius Berman, 1973 |
| Type species | |
| †Lafonius lehmani Berman, 1973
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Lafonius is an extinct genus dvinosaurian temnospondyl within the family Trimerorhachidae. It is known from Carboniferous of New Mexico.[1]