10 Animals That Lived with the Dinosaurs and No Longer Exist Today.
Introduction
The Mesozoic Era, spanning over 180 million years from the Triassic to the end of the Cretaceous period, is often dubbed the "Age of Dinosaurs." However, dinosaurs were far from the only fascinating creatures roaming the Earth during this time. The era also witnessed a plethora of non-dinosaur species that evolved, flourished, and ultimately vanished—either alongside the dinosaurs during the mass extinction event 66 million years ago or slightly earlier. These animals, ranging from monstrous marine reptiles to flying behemoths, left a permanent mark on Earth’s evolutionary story.
