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31 de jul. de 2019 · Learn about the two leading theories for what ended the age of the dinosaurs 66 million years ago: a giant meteor impact or massive volcanic eruptions. Explore the evidence, the challenges, and the controversies behind each hypothesis.
The Cretaceous–Paleogene (K–Pg) extinction event, also known as the Cretaceous–Tertiary (K–T) extinction, was a sudden mass extinction of three-quarters of the plant and animal species on Earth, approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs.
Learn about the possible causes of the Cretaceous extinction that ended the age of the dinosaurs 66 million years ago. Find out how asteroid impact, volcanic eruptions and climate change may have contributed to the mass extinction.
Proposed causes for the extinction of dinosaurs have included everything from disease, heat waves, cold spells, faunal changes, and an asteroid collision during the K–T boundary.
Hace 65 millones de años se extinguió el último dinosaurio. Los gigantescos mosasaurios y plesiosaurios en los mares y los pterosaurios en los cielos. Muchas familias de braquiópodos y esponjas de mar desaparecieron. Los restantes ammonites de concha dura se esfumaron.
Learn how a massive asteroid impact 66 million years ago caused the extinction of 75% of Earth's animals, including non-bird dinosaurs. Discover the evidence, the theory and the aftermath of this global catastrophe.
24 de mar. de 2010 · Learn about the causes and dates of the K-T extinction event that wiped out the dinosaurs and many other species 65.5 million years ago. Explore the evidence for and against different theories, from climate change to comet impact.
