An asteroid impact caused a mass extinction about 65 million years ago
Yes Halley's comet struck Arizona over 63 million years ago and is believed to have caused the extinction of dinosaurs.
Most dinosaurs died off about 65 million years ago. Most life on Earth ended 65 million years ago during what is called the Cretaceous-Paleogene extinction event. There is substantial scientific evidence of an asteroid or comet impact on Earth that caused or was the primary contributor to the extinction. A few scientists still hold other views, including a massive eruption of volcanoes. See related links.
The mass extinction of dinosaurs occurred around 66 million years ago during the Cretaceous-Paleogene (K-Pg) boundary.
No, the breakup of Pangaea occurred long before the mass extinction of dinosaurs. The main factor believed to have caused dinosaur extinction is an asteroid impact that occurred around 66 million years ago.
no a dieses killed all the dinosaurs but we may never know if i am wrong or right No, The reason for their ending may be because of the Flood that happened in the Bible, If you look it up in Genesis you can read more.
540 million years ago was the first mass extinction
The Cretaceous Paleogene extinction event about 65 million years ago.
Yes. At the time of ther Permian extinction 251 million years ago dinosaurs had not yet evolved. The dinosaur extinction was 65 million years ago.
The three mass extinctions referred to are the Permian-Triassic extinction about 252 million years ago, the Triassic-Jurassic extinction about 201 million years ago, and the Cretaceous-Paleogene extinction about 66 million years ago.
About 65 million years ago was the Cretaceous-Paleongene excintion event, likely caused by a combination of an asteroid impact and a surge in volcanic activity. A number of groups of animals went extinct including ammonites, pterosaurs, plesiosaurs, and dinosaurs.
Yes Halley's comet struck Arizona over 63 million years ago and is believed to have caused the extinction of dinosaurs.
65 million years ago
65 million years ago
The most extreme that we are aware of was the Permian Extinction about 252 million years ago, in which 95% of all life was killed. The cause is still unknown, although it is possible that this was an impact event.
Most dinosaurs died off about 65 million years ago. Most life on Earth ended 65 million years ago during what is called the Cretaceous-Paleogene extinction event. There is substantial scientific evidence of an asteroid or comet impact on Earth that caused or was the primary contributor to the extinction. A few scientists still hold other views, including a massive eruption of volcanoes. See related links.
The mass extinction of dinosaurs occurred around 66 million years ago during the Cretaceous-Paleogene (K-Pg) boundary.
The Permian-Triassic mass extinction, aka "the Great Dying", the single most devastating mass extinction known.