EntityQ683975· pop 11· linked from 311 articlesAlvarez hypothesisSign in to saveasteroid impact hypothesis as cause of the Cretaceous–Paleogene extinctionConnectionsCretaceous-Paleogene mass extinctionEntityMexicoCountryEarthConceptearthquakeEntitydinosaurEntityasteroidEntityAlbertaEntityiridiumEntitygraniteEntityPhobosEntitydigital object identifierEntityamberEntityInternational Standard Serial NumberEntityYucatan PeninsulaEntityAtomic bombings of Hiroshima and NagasakiConceptmeteoriteEntitygypsumEntityUniversity of California, BerkeleyEntityLuis Walter AlvarezEntityfood chainEntityCategories1980s in scienceCretaceous–Paleogene boundaryHypothesesHypothetical Earth impact eventsLate Cretaceous extinctions