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. … See more The K–Pg extinction event was severe, global, rapid, and selective, eliminating a vast number of species. Based on marine fossils, it is estimated that 75% or more of all species were made extinct. The event appears … See more Evidence for impact In 1980, a team of researchers consisting of Nobel Prize-winning physicist Luis Alvarez, … See more Although the concurrence of the end-Cretaceous extinctions with the Chicxulub asteroid impact strongly supports the impact hypothesis, … See more • Climate across Cretaceous–Paleogene boundary • Late Devonian extinction • List of possible impact structures on Earth See more North American fossils In North American terrestrial sequences, the extinction event is best represented by the marked … See more The rapidity of the extinction is a controversial issue, because some theories about its causes imply a rapid extinction over a relatively short period (from a few years to a few thousand years), while others imply longer periods. The issue is difficult … See more The K–Pg extinction had a profound effect on the evolution of life on Earth. The elimination of dominant Cretaceous groups allowed … See more WebFeb 24, 2024 · How To See The 2024 Lyrid Meteor Shower This Month. Apr 11, 2024, 10:29am EDT. ... proposed that the iridium anomaly was the result of a large asteroid hitting the earth at the end of the Cretaceous.
Asteroid Triggered Mass Extinction at End of Cretaceous …
WebTookoonooka crater. / 27.117°S 142.833°E / -27.117; 142.833. / 27.117°S 142.833°E / -27.117; 142.833. Tookoonooka is a large meteorite impact crater (astrobleme) situated in South West Queensland, Australia. It lies deeply buried within Mesozoic sedimentary rocks of the Eromanga Basin and is not visible at the surface. WebMar 29, 2024 · Direct fossil evidence of the cataclysmic meteor impact that led to the extinction of the dinosaurs 66 million years ago has been found. The last hours of the Cretaceous Period. The actual paper ... city of maple ridge open data
Tookoonooka crater - Wikipedia
WebThe immense Chicxulub crater is a remnant of one of the most consequential days in the history of life on Earth. The asteroid strike triggered the Cretaceous-Paleogene, or K-Pg, … WebThe extermination of the dinosaurs has been a puzzle to paleontologists, geologists, and biologists for two centuries. Proposed causes include disease, heat waves and resulting … WebMar 2, 2024 · One June day 66 million years ago, a massive asteroid crashed into the coast of Mexico. The asteroid crash caused what we call the Cretaceous-Palaeogene or K-Pg mass extinction. This killed ... city of maple ridge ocp map