Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Cretaceous–Paleogene_extinction_event> ?p ?o }
- Cretaceous–Paleogene_extinction_event abstract "Cretaceous–Paleogene (K–Pg) extinction event, also known as the Cretaceous–Tertiary (K–T) extinction, was a mass extinction of some three-quarters of the plant and animal species on Earth—including all non-avian dinosaurs—that occurred over a geologically short period of time, 66 million years ago. It marked the end of the Cretaceous period and with it, the entire Mesozoic Era, opening the Cenozoic Era that continues today.In the geologic record, the K–Pg event is marked by a thin layer of sediment called the K–Pg boundary, which can be found throughout the world in marine and terrestrial rocks. The boundary clay shows high levels of the metal iridium, which is rare in the Earth's crust but abundant in asteroids.As originally proposed by a team of scientists led by Luis Alvarez, it is now generally believed that the K–Pg extinction was triggered by a massive comet or asteroid impact 66 million years ago and its catastrophic effects on the global environment, including a lingering impact winter that made it impossible for plants and plankton to carry out photosynthesis. The impact hypothesis was bolstered by the discovery of the 180-kilometre-wide (112 mi) Chicxulub crater in the Gulf of Mexico in the early 1990s, which provided conclusive evidence that the K–Pg boundary clay represented debris from an asteroid impact. The fact that the extinctions occurred at the same time as the impact provides strong situational evidence that the K–Pg extinction was caused by the asteroid. It was possibly accelerated by the creation of the Deccan Traps. However, some scientists maintain the extinction was caused or exacerbated by other factors, such as volcanic eruptions, climate change, or sea level change, separately or together.A wide range of species perished in the K–Pg extinction. The most well-known victims are the non-avian dinosaurs. However, the extinction also destroyed a plethora of other terrestrial organisms, including certain mammals, pterosaurs, birds, lizards, insects, and plants. In the oceans, the K–Pg extinction killed off plesiosaurs and the giant marine lizards (Mosasauridae) and devastated fish, sharks, mollusks (especially ammonites, which went extinct) and many species of plankton. It is estimated that 75% or more of all species on Earth vanished. Yet the devastation caused by the extinction also provided evolutionary opportunities. In the wake of the extinction, many groups underwent remarkable adaptive radiations—a sudden and prolific divergence into new forms and species within the disrupted and emptied ecological niches resulting from the event. Mammals in particular diversified in the Paleogene, producing new forms such as horses, whales, bats, and primates. Birds, fish and perhaps lizards also radiated.".
- Cretaceous–Paleogene_extinction_event thumbnail Impact_event.jpg?width=300.
- Cretaceous–Paleogene_extinction_event wikiPageExternalLink chicxulub.
- Cretaceous–Paleogene_extinction_event wikiPageExternalLink Chicx_title.html.
- Cretaceous–Paleogene_extinction_event wikiPageExternalLink extinction.html.
- Cretaceous–Paleogene_extinction_event wikiPageExternalLink cowen1b.html.
- Cretaceous–Paleogene_extinction_event wikiPageExternalLink Chicx_title.html.
- Cretaceous–Paleogene_extinction_event wikiPageID "44503418".
- Cretaceous–Paleogene_extinction_event wikiPageLength "106434".
- Cretaceous–Paleogene_extinction_event wikiPageOutDegree "328".
- Cretaceous–Paleogene_extinction_event wikiPageRevisionID "707742107".
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink 1980_eruption_of_Mount_St._Helens.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Adaptive_radiation.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Aerosol.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Albedo.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Alberta.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Algae.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Ammonoidea.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Ankylosaurus.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Antarctic_Circle.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Archosaur.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Archosauromorpha.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Argon–argon_dating.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Asteroid.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Atomic_bombings_of_Hiroshima_and_Nagasaki.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Azhdarchidae.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Baptistina_family.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Bat.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Belemnoidea.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Benthic_zone.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Berkeley_Geochronology_Center.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Biocoenosis.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Biodiversity_of_New_Zealand.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Biomass_(ecology).
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Bird.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Bivalvia.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Bolide.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Boltysh_crater.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Brachiopod.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Calcareous.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Calcium.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Calcium_carbonate.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Carbonate_platform.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Carnivore.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Carrion.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Cenozoic_life.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Cenozoic_volcanism.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Climate_forcing_agents.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Climate_history.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Cretaceous–Paleogene_boundary.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Dinosaurs.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Evolution_of_mammals.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Hypothetical_impact_events.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Late_Cretaceous_extinctions.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Mesozoic_life.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Mesozoic_volcanism.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Category:Paleogene_extinctions.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Cenozoic.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Cephalopod.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Cetacea.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Chicxulub,_Yucatán.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Chicxulub_crater.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Chicxulub_impactor.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Chondrichthyes.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Choristodera.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Clade.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Climate_across_Cretaceous–Paleogene_boundary.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Coastal_plain.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Coccolithophore.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Coleoidea.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Comet.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Comet_Shoemaker–Levy_9.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Concentration.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Continental_shelf.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Coral.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Cretaceous.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Cretaceous–Paleogene_boundary.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Crocodilia.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Crocodyliformes.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Crust_(geology).
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Crustacean.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Cuttlefish.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Dead_clade_walking.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Deccan_Traps.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Deltatheroida.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Detritus.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Diatom.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Dinoflagellate.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Dinosaur.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Dinosaur_Park_Formation.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Dromornithidae.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Dryolestoidea.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Dyrosauridae.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Earth.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Echinoderm.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Ecological_niche.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Enantiornithes.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Euornithes.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Eutheria.
- Cretaceous–Paleogene_extinction_event wikiPageWikiLink Even-toed_ungulate.