| Patagomaia Temporal range: Late Cretaceous,
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|---|---|
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| holotype remains of Patagomaia chainko | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Subclass: | Theria |
| Genus: | †Patagomaia |
| Species: | †P. chainko
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| Binomial name | |
| †Patagomaia chainko Chimento et al., 2024
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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).[1] The type species is P. chainko.
- ^ Chimento, Nicolás R.; Agnolín, Federico L.; García-Marsà, Jordi; Manabe, Makoto; Tsuihiji, Takanobu; Novas, Fernando E. (February 3, 2024). "A large therian mammal from the Late Cretaceous of South America". Scientific Reports. 14 (1): 2854. Bibcode:2024NatSR..14.2854C. doi:10.1038/s41598-024-53156-3. PMC 10838296. PMID 38310138.