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4 days ago · K–T extinction, a global extinction event responsible for eliminating approximately 80 percent of all animal species about 66 million years ago. It was characterized by the purging of many lines of animals that were important, including nearly all of the dinosaurs and many marine invertebrates.
- The Editors of Encyclopaedia Britannica
4 days ago · What are dinosaurs? How did most dinosaurs go extinct? Did dinosaurs have feathers? Do dinosaurs exist today? What is the largest dinosaur? When was the first dinosaur fossil discovered?
4 days ago · The “moments” of apparently high extinction levels among dinosaurs occurred at two points in the Triassic (about 221 million and 210 million years ago), perhaps at the end of the Jurassic (145 million years ago), and, of course, at the end of the Cretaceous (66 million years ago).
5 days ago · Extinct animals offer a glimpse into the past, revealing the diversity and evolution of life on Earth. The extinction of dinosaurs paved the way for the rise of mammals, marking a significant turning point in Earth’s history.
2 days ago · It has been thought that megalodon became extinct around the end of the Pliocene, about 2.6 Mya; claims of Pleistocene megalodon teeth, younger than 2.6 million years old, are considered unreliable. A 2019 assessment moves the extinction date back to earlier in the Pliocene, 3.6 Mya.
5 days ago · Extinction of animals and plants. Read scientific research on the dinosaur extinction, future mass extinctions, and endangered species. What can be done?
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5 days ago · Smilodon is a genus of felids belonging to the extinct subfamily Machairodontinae. It is one of the best known saber-toothed predators and prehistoric mammals. Although commonly known as the saber-toothed tiger, it was not closely related to the tiger or other modern cats.
