The inland sea in which Nakonanectes bradti lived covered a large swath of what is now North America — it stretched from Montana to Minnesota and from Canada to the Gulf of Mexico, the AP reported.

He said the inland sea that stretched the width of Montana to Minnesota and from Canada to the Gulf of Mexico was teeming with marine reptiles, but relatively few of their fossils have been excavated.

A fossil found by an elk hunter in Montana nearly seven years ago has led to the discovery of a new species of prehistoric sea creature that lived about 70 million years ago in the inland sea that ...

Much of modern-day Saskatchewan, Manitoba, Montana and the Dakotas lay beneath a shallow inland sea known as the Williston ... The Williston Basin was covered by a really unusual sea at the top of the ...

A fossil found by an elk hunter in Montana nearly seven years ago has led to the discovery of a new species of prehistoric sea creature that lived about 70 million years ago in the inland sea that ...