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1991. The Mesozoic Era[3] is the era of Earth's geological history, lasting from about 252 to 66 million years ago, comprising the Triassic, Jurassic and Cretaceous Periods. It is characterized by the dominance of gymnosperms and of archosaurian reptiles, such as the dinosaurs; a hot greenhouse climate; and the tectonic break-up of Pangaea.
The Cretaceous (IPA: / krɪˈteɪʃəs / krih-TAY-shəss) [2] is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of the entire Phanerozoic. The name is derived from the Latin ...
Late Devonian: 375 million years ago, 75% of species lost, including most trilobites. End Permian, The Great Dying: 251 million years ago, 96% of species lost, including tabulate corals, and most trees and synapsids. End Triassic: 200 million years ago, 80% of species lost, including all conodonts. End Cretaceous: 66 million years ago, 76% of ...
80 years ago, on the beaches of Normandy, WWII shifted course: Here's how D-Day unfolded. Gannett. George Petras and Janet Loehrke, USA TODAY. June 5, 2024 at 6:13 PM.
80 years ago, Tuskegee Airmen trained at Selfridge Airfield to fly in World War II. Eighty years ago, military planes zoomed back and forth across Michigan's skies like streaks of red-tailed ...
Russia marks 80 years since breaking the Nazi siege of Leningrad. January 27, 2024 at 12:23 PM ... “If you touch the history, you feel that pain and horror that were happening here 80 years ago ...
v. t. e. This timeline of prehistory covers the time from the appearance of Homo sapiens approximately 315,000 years ago in Africa to the invention of writing, over 5,000 years ago, with the earliest records going back to 3,200 BC. Prehistory covers the time from the Paleolithic (Old Stone Age) to the beginning of ancient history.
According to historian David Kaiser, who was consulted for the film, Generation Zero "focused on the key aspect of their theory, the idea that every 80 years of American history has been marked by a crisis, or 'fourth turning', that destroyed an old order and created a new one". Kaiser said Bannon is "very familiar with Strauss and Howe's ...