A. Wood Ecozoic Era A play on words, credited to Thomas Berry, which describes our growing dominance of the planet in terms of Geologic Time. Earlier eras include the Paleozoic Age, a period of roughly 300 million years during which life evolved from the cellular level to forms we recognize in today’s world, the Mesozoic Era, a period of roughly 180 millions years known as the Age of Dinosaurs, and the Cenozoic Era, reaching from today back 65 million years known as the Age of Mammals. This proposed Age of Man would take one of two forms, the more positive of which being the Ecozoic Era. This era would be marked by a conscious reversal of current trends of extinction and our unsustainable industrial culture in favor of a harmonious integration of human civilization and the natural world, a future in which technological advancement would serve the larger global organism. The negative alternative would be the Technozoic Era.