Western Interior Seaway
Sign in to savelarge inland sea during the mid- to late Cretaceous and the very early Paleogene; split North America into Laramidia and Appalachia; stretched from the Gulf of Mexico to the Arctic Ocean; at its largest, it was 760 m deep, 970 km wide, 3200 km long
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- Western Interior Seaway - 95Ma (with ancient continents).svg
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- Cretaceous Seaway
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