Either buy a kit, or simply follow the guidelines below. Here are the general materials you'll need: 1  8-foot (2.5-meter) long 1 Â¾-inch diameter galvanized steel poles -- four for approximately every 15 feet (4.5 meters) of batting cage length plus four for the initial frame.
Cenozoic Era. The Cenozoic Era began 65 million years ago with an asteroid impact that killed off a majority of the dinosaurs and ends at the present day.The Cenozoic is commonly divided into three periods: 1  Paleogene (65.5 to 23.03 million years ago).2  Neogene (23.03 to 2.6 million years ago).enozoic Era. The Cenozoic Era began 65 million years ago with an asteroid impact that killed off a majority of the dinosaurs and ends at the present day.
Mesozoic Era. The Mesozoic geological era consists of three geological periods, namely Triassic, Jurassic and Cretaceous. The Triassic period (245 to 210 million years ago) paved the way for the Dinosaurs' reign on earth and the formation of the giant continent called Pangaea occurred during the same period. Then came the Jurassic period (210 to 146 million years ago) which saw the complete domination of the Dinosaurs on earth.