Kepunahan massal panguntat duk pantaraning 66 yuta warsa sané lintang, rikala makaplug meteorit minab ngawi kepunahan dinosaurus non-unggas miwah reptil ageng tiosan, sakéwanten prasida nyametang baburin alit sekadi mamalia.
Since the Cambrian explosion there have been five distinctly identifiable mass extinctions.The last mass extinction occurred some 65 million years ago, when a meteorite collision probably triggered the extinction of the non-avian dinosaurs and other large reptiles, but spared small animals such as mammals, which then resembled shrews.