1 Only about 1 percent of Michiganâs maple forest resource is used in maple syrup production. 2  In an average year, each tap-hole will produce about 10 gallons of maple sap, enough for about a quart of pure Michigan maple syrup.
A mass extinction marked the end of the Mesozoic Era The Mesozoic era is the era of dinosaurs and lasted 180 million years. This era includes 3 well-known periods - Triassic, Jurassic, Cretaceous. A mass extinction marked the beginning and the end of the Mesozoic Era. Was this helpful?
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.