Geologic time scale

By nicewarner
  • Period: 1 CE to 65

    Cenozoic

    .01-65 million years ago. Large carnivores and early man.
  • Period: 250 to 65

    Mesozoic

    65-250 Million years ago. First birds, mammals and Dinosaurs.
  • Period: 540 to 250

    Paleozoic

    540-240 million years ago. First Reptiles