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. Dinosaurs. The word itself immediately calls to mind large, predatory reptiles stalking the Earth. As young and old alike experience such visual, visceral responses to the word, it is difficult to believe that a mere 200 years ago, no one had any idea that these creatures had ever existed. [download]
Format : Ebook.Pdf
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