Learn about the history, geology, and wildlife of this U.S. national monument in east-central Oregon. Explore the three units of Sheep Rock, Painted Hills, and Clarno, where you can see fossils of ancient plants and animals. · 疾速追杀2 John Wick: Chapter 2 (2017)全集未删减高清版免费下载 分享 举报 1个回答 · Fossils of the John Day Region Discover what has been unearthed and how Oregon has changed, right from where you already are. · John DayFossilBeds National Monument, established in October 1975, showcases one of the world’s best and most continuous records of the Cenozoic (the past 66 million years) that is generally regarded as the Age of Mammals. · Today, the museum collections at John DayFossilBeds National Monument include more than 60,000 well-preserved specimens of plant, insect, and animal fossils, ranging from oreodonts (extinct sheep-sized hoofed mammals) to flowers, to leaves, to bean seeds, to cicadas and water beetles. Divided into three units—Clarno, Sheep Rock and Painted Hills—the 19,000-acre John DayFossilBeds National Monument is one of the world’s richest repositories of plant and mammal fossils. The fossils at John Day span 40 million years and offer one of the richest evolutionary records of the Cenozoic Era, including prehistoric alligators, bears, dogs, pigs, horses, cougars and even hippopotamuses. · Explore the world's most extensive fossil collection and the colorful Painted Hills at John Day Fossil Beds National Monument. Learn about the subtropical jungle, volcanic eruptions, and paleontological discoveries that shaped this region.
