Geological time scale, illustration - stock illustration

Geological time scale, illustration. The globes show the configuration of the continents during the late Paleozoic Era (275 million years ago), the late Mesozoic Era (65 million years ago) and today, during the Cenozoic Era. Representing the fauna of the late Paleozoic is a Dimetrodon, which was a synapsid, an early form of the evolution from reptiles to mammals. Representing the fauna of the late Mesozoic is a Triceratops dinosaur. A human is at right.