Patagomaia

Patagomaia
Temporal range: Late Cretaceous,
Holotype specimen
Scientific classification
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 genus contains a single species, Patagomaia chainko, known from various fragmentary bones.

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