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Bookmark or Share- Cretaceous–Paleogene extinction event - WikipediaThe Cretaceous–Paleogene (K–Pg) extinction event, [a] also known as the K–T extinction, [b] was the mass extinction of three-quarters of the plant and animal species on Earth [2] [3] approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs.Most other tetrapods weighing more than 25 kg (55 lb) also became extinct, with the exception of some ...
- Cretaceous Period - Dinosaurs, Plants, Marine Life | BritannicaCretaceous Period - Dinosaurs, Plants, Marine Life: Although the fossil record is irregular in quality and quantity for the Early Cretaceous, it is obvious that dinosaurs continued their lengthy dominance of the land.
- Cretaceous Period - Geology PageIt is the last period of the Mesozoic Era, and, spanning 79 million years, the longest period of the Phanerozoic Eon. The Cretaceous was a period with a relatively warm climate, resulting in high eustatic sea levels and creating numerous shallow inland seas.
- Cretaceous Period—145.0 to 66.0 MYA - U.S. National Park ServiceThe main contender for the Cretaceous mass extinction event is a huge asteroid striking Earth about 66 million years ago. Eleven other impact structures are known from the Cretaceous, but none rival the terminal event of the Cretaceous.
- Cretaceous - WikipediaThe 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 ninth and longest geological period of the entire Phanerozoic.
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