Scientists this summer discovered traces of the fish — which has been around for 70 million years — in the Connecticut River, ...

A giant inland sea cut right across North America. Known as the Western Interior Seaway, it ran north to south, connecting the Arctic Ocean with the Gulf of Mexico. It essentially cut the ...

Among some of the most famous titans of prehistory, Archelon held its own unique place. The giant turtle lived in a sea we now call the Western Interior Seaway — a large inland sea that split North ...

Xiphactinus trolled an ancient ocean called the Western Interior Seaway, which covered much of central North America during the Cretaceous. Though long extinct, if alive today the bony fish would ...

Saskatchewan looked quite different, with a western interior seaway splitting North America in half from the Artic Circle to ...