Mesozoic

The Mesozoic Era is an interval of geological time from about 252 to 66 million years ago. It is often referred to as the Age of Reptiles because reptiles, namely non-avian dinosaurs, were the dominant terrestrial and marine vertebrates of the time. Mesozoic means “middle life”, deriving from the Greek prefix meso-/μεσο- for “between” and zōon/ζωον meaning “animal” or “living being”.