10 million years ago, turtles could eat you with a single bite.

The world’s largest turtle that roamed South America 10 million years ago – the Stupendemys Geographicus
Stupendemys is an extinct genus of freshwater side-necked turtle, belonging to the family Podocnemididae. It is the largest freshwater turtle known to have existed, with a carapace over 2 meters long.

Its fossils have been found in northern South America, in rocks dating from the Middle Miocene to the very
start of the Pliocene, about 13 to 5 million years ago. Male specimens are known to have possessed bony horns growing from the front edges of the shell and the discovery of the fossil of a young adult shows that the carapace of these turtles flattens with age. A fossil skull described in 2021 indicates that Stupendemys was a generalist feeder