MESOZOIC ERA                                                          249 - 65.5 Million Years Ago Edit

This is the most mighty and famous Era of all Prehistory - mainly thanks to one Dynasty of Reptiles, that came to dominate the land for over 170 Million Years - The Dinosaurs, of course. Marked in the beginning as the time of slow recovery after the Era-ending cataclysm at the end of the Permian Period, the Mesozoic Era's first Period of three, the Triassic Period, set the scene for the void in the ecosystems devasted in the Permian Mass Extinction, to be filled by newer, more adaptable Reptiles in particular. The Mesozoic is divided into three distinct Periods; (in order left-right) the Triassic, the Jurassic, and then the Cretaceous.

The Hadean Eon The Archaean Eon The Proterozoic Eon The Phanerozoic Eon The Palaeozoic Era The Cambrian Period The Ordovician Period The Silurian Period The Devonian Period The Carboniferous Period The Permian Period The Mesozoic Era The Triassic Period The Jurassic Period The Cretaceous Period The Cenozoic Era The Tertiary Period The Palaeocene Epoch The Eocene Epoch The Oligocene Epoch The Miocene Epoch The Pliocene Epoch The Quaternary Period The Pleistocene Epoch The Holocene Epoch