It was a time of huge “thunder lizards” roaming steamy
fern jungles; of “mammal-reptiles” walking the land of
Laurasia; of continental movements, mountain building,
and massive volcanoes; and a time of the most horrific,
earth-shattering extinctions that ever occurred on this
planet. It was the middle times of what is called the
Phanerozoic Eon, a geologic interval lasting almost a half
billion years. It was the time of the dinosaurs…and much,
much more. We call this time the Mesozoic Era.