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Details
- Instance of
- geological formation
- Has parts
- Tanis
- Located in
- North Dakota
- Country
- United States
- fossil found in this unit
- Tyrannosaurus rex, Nanotyrannus, Dinotyrannus megagracilis, Aublysodon molnari, Aublysodon cf. mirandus, Albertosaurus megagracilis
- heritage designation
- National Natural Landmark
- native label
- Hell Creek Formation
- overlies
- Fox Hills Formation
- temporal range end
- Danian
- temporal range start
- Maastrichtian
- underlies
- Fort Union Formation
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