Patagomaia
| Patagomaia Temporal range: Late Cretaceous, | |
|---|---|
| holotype remains of Patagomaia chainko | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Subclass: | Theria |
| Genus: | †Patagomaia |
| Species: | †P. chainko |
| Binomial name | |
| †Patagomaia chainko Chimento et al., 2024 | |
Patagomaia is an extinct mammal of uncertain affinities, originally described as a therian mammal, from the Maastrichtian Chorrillo Formation of Argentina. It is the largest Mesozoic mammal yet known, with weight estimates of around 14 kilograms (31 lb). The type species is P. chainko.