Alphadon
| Alphadon Temporal range: Late Cretaceous,  | |
|---|---|
| Reconstruction of Alphadon sp. | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Mammalia | 
| Family: | †Alphadontidae | 
| Genus: | †Alphadon Simpson, 1927 | 
| Species | |
Alphadon is an extinct genus of small, primitive mammal that was a member of the metatherians, a group of mammals that includes modern-day marsupials. Its fossils were first discovered and named by George Gaylord Simpson in 1929.