DinoDigTwo Medicine Formation
Late Cretaceous (Campanian) terrestrial unit in Montana known for Maiasaura nesting sites.
Late Cretaceous · 100.5–66 Mya
Period
Late Cretaceous
Country
United States
About
The Two Medicine Formation records floodplain and alluvial environments along the eastern flank of the Cretaceous Sevier highlands. It preserves dense hadrosaur nesting colonies and a varied dinosaurian fauna.
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Map of known sites
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