North America during the Campanian of the Upper Cretaceous, ~75 million years ago

[dlamberth]

Copied from "All Things Dinosaurs".

North America during the Campanian of the Upper Cretaceous, ~75 million years ago. Shown are the island-continents of Laramidia, Appalachia, Laurentia (attached to Appalachia at this time by an isthmus), and Greenland. The Western Interior Seaway would rise and fall many times throughout the Cretaceous, driving dinosaur diversity into high gear. Geological formations deposited at this time include the Dinosaur Park Formation, in Alberta, Canada, and the Kaiparowits Formation, Utah, USA.
~J
Image credit: Sampson et al., 2010; modified after Blakely

 

[Halbhh]

What an interesting post! While like many I've seen animation of continental drift, involving such as Pangea, etc., still it's fun to see North American geologic evolution in particular, because you can notice things like "hah, my future hometown was about 100 miles into the inland sea" and so on.