The First Three-toed Ankylosaurid Tracks Ever Found. The tracks, dating back roughly 100 million years, were unearthed at two sites: Tumbler Ridge in British Columbia and northwestern Alberta.What ...

The model shows how the planet looked completely different 100 million years ago, with the African continent divided in half, India situated near Antarctica and North America in pieces.

Nearly 100 million years ago, a species Fiorillo couldn’t immediately identify left a large print with three long, slender toes behind. ... on how large reptiles survived this far north.

The tracks were discovered in the Coke Basin of Alaska’s Nanushuk Formation, which dates back roughly 94 million to 113 million years. Approximately 75 track sites were found there, alongside ...

Some of the earliest North Americans may have arrived on the continent using a "sea-ice highway" as far back as around 24,000 years ago. The findings of the research, which was presented on Friday ...

Tyrannosaurus rex ancestors would have moved from Asia to North America around 70 million years ago, researchers say. Pedro Salas/Sergey Krasovskiy Sign up for CNN’s Wonder Theory science ...

Traskasaura sandrae is a "very odd" mix of primitive and derived traits. A prehistoric sea monster never-before-known to man was hunting prey in North America 85 million years ago, fossils found ...

The Great Lakes formed where they did 20,000 years ago thanks to a hotspot that sat under the supercontinent Pangaea 300 million years ago, before North America even existed.

DNA from 2 million years ago recovered from sediments in Greenland is the oldest preserved DNA found to date, ... elephant-like animals that once lived in North America.

According to the study’s researchers, the Fijian iguanas evolutionarily diverged from their North American kin between 34 million and 31 million years ago, long after Gondwana broke up, making ...

Then, around 56 million years ago, we get this massive immigration of mammals into North America from other continents, and at that point, we see a divergence of functional diversity.