Mesozoic vs Phanerozoic - What's the difference?
mesozoic | phanerozoic |
(geology) Of a geologic era within the Phanerozoic eon that comprises the Triassic, Jurassic and Cretaceous periods from about 230 to 65 million years ago, when life on earth was dominated by reptiles.
(geology) A geologic eon from about 570 million years ago to the present, comprising the Paleozoic, Mesozoic and Cenozoic eras.