While investigating this event, Luis Alvarez discovered that sediment from around the world displays a layer of iridium dating to this event.
While investigating this event, Luis Alvarez discovered that sediment from around the world displays a layer of iridium dating to this event. This event may have begun at Chicxulub ￼ ￼ ￼ ￼ ￼ on the Yucatan peninsula, and ended the (*) Mesozoic Era. A meteor may have caused, for ten points, what devastating event 65 million years ago that wiped out thousands of species, including T. Rex?
While investigating this event, Luis Alvarez discovered that sediment from around the world displays a layer of iridium dating to this event.
extinction of the dinosaurs (accept K-T extinction event or Cretaceous-Tertiary extinction event; accept K-Pg extinction or Cretaceous-Paleogene extinction)