Latest Comments
Earth Eras Timeline
Earth Eras Timeline Archeozoic Era 4500-1500 million years ago This is the first Era to have geologic record. In this early stage of the earth, the surface changes from molten to[…]
Earth Eras Timeline Archeozoic Era 4500-1500 million years ago This is the first Era to have geologic record. In this early stage of the earth, the surface changes from molten to[…]