Diadiaphorus
| Diadiaphorus | |
|---|---|
| D. majusculus skull. Collected from Santa Cruz, Patagonia, Argentina. | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Mammalia | 
| Order: | †Litopterna | 
| Family: | †Proterotheriidae | 
| Subfamily: | †Proterotheriinae | 
| Genus: | †Diadiaphorus Ameghino, 1887 | 
| Type species | |
| †Diadiaphorus majusculus Ameghino, 1887 | |
| Species | |
| 
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| Synonyms | |
| Genus synonymy 
 D. majusculus 
 | |
Diadiaphorus is an extinct genus of litoptern mammal from the Miocene of Argentina (Ituzaingó, Pinturas, Chiquimil and Santa Cruz Formations) and Bolivia (Nazareno Formation), South America.