Species Classification: Ameridelphia

Didelphodon

Didelphodon: Research Database Metatheria (Mammalia) · Late Cretaceous (~75-70 MYA) · North America — USA, Montana (Hell Creek Formation)   Research Note: Didelphodon was a metatherian mammal from the Late Cretaceous of Montana — one of the largest known Mesozoic mammals and an important taxon for understanding metatherian evolution in the Cretaceous of North America. … Read more

Alphadon

Alphadon: Research Database Mammalia (Metatheria) · Late Cretaceous (~80 MYA) · North America   Research Note: Alphadon was a metatherian (marsupial relative) from the Late Cretaceous of North America — an important taxon for understanding metatherian evolution and the diversification of mammals in the Cretaceous.   Research Finding Status Grade Year Method Citation Impact Archibald … Read more

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