Archelon Troodon American mastodons were still large

American mastodons were still large animals

the Saudi gazelle faced the threat of extinction

Snout-tail length 550 mm

Height 95mm

The latest discoveries about the size of Dunkleosteus terrelli give us a more accurate look at this intriguing marine predator of the past

Archelon Troodon American mastodons were still largeArchelon ("ruling tortoise") is an impressive species of giant tortoise that inhabited Earth during the Cretaceous period, approximately 70 75 million years ago. It is known as one of the largest sea turtles that has ever existed, it is estimated that its total length could reach up to 4. 5 meters, with a weight that could exceed 2,000 kilograms. This makes it one of the largest known sea turtles, even larger than the leatherback, which is the largest