Western Interior Seaway

E1145388 UNEXPLORED

The Western Interior Seaway was a vast, shallow inland sea that split North America into two landmasses during the Late Cretaceous period, hosting rich marine ecosystems and extensive sediment deposition.

All labels observed (1)

Label Occurrences
Western Interior Seaway canonical 2

How this entity was disambiguated

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Pierre Shale basin Western Interior Seaway
Western Interior Basin contains Western Interior Seaway