Definition: The Mesozoic Era (248 - 65 Myr BP) is the second of three eras that make up the Phanerozoic Eon. The Mesozoic Era is preceded by the Paleozoic Era and followed by the Cenozoic Era.
The Mesozoic Era is subdivided into three periods, the Triassic Period, the Jurassic Period, and the Cretaceous Period.
