01/05/2025
Around 77 million years ago, during the Late Cretaceous period, North America looked vastly different from today. A shallow inland sea, the Western Interior Seaway, split the continent into two landmasses: Laramidia in the west and Appalachia in the east.
Laramidia, a narrow strip along the western coast, was a haven for dinosaurs like Tyrannosaurus, Triceratops, and duck-billed hadrosaurs. Appalachia, separated by the seaway, had its own unique ecosystems. Dense forests, swamps, and evolving flowering plants dominated the landscapes, while marine reptiles like mosasaurs and ammonites thrived in the seaway.
The climate was warmer, with no polar ice caps, creating lush environments perfect for prehistoric giants.
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