Western Interior Sea is a large in land that split North America from East and West. It covers what today is the Great Prairies. It was home Cretoxyrhina, Elasmosaurus, and Archelon. A common flying creatures is Pteranodons. A sea bird that lives next on the sea is the Hesperornis. Stations that are located in the sea is Elasmosaurus Reef Station and Cretoxyrhina Coral Station.



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