Proadiantus
| Proadiantus Temporal range: Late Oligocene  ~ | |
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| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Mammalia | 
| Order: | †Litopterna | 
| Family: | †Adianthidae | 
| Subfamily: | †Adianthinae | 
| Genus: | †Proadiantus Ameghino 1897 | 
| Type species | |
| †Proadiantus excavatus Ameghino, 1897 | |
| Species | |
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| Synonyms | |
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Proadiantus (Ameghino, 1897) is an extinct genus of adianthid litoptern. It lived during the Late Oligocene, in what is today South America. It consists of only 1 species, Proadiantus excavatus.