The Great Extinction, the Solution to One of the Great Mysteries of Science: The Disappearance of the DinosaursThe solution to one of the great mysteries of science--the disappearance of the dinosaurs. |
Contents
A Body Has Been Found | 1 |
Clues from the Clays | 12 |
Gradual or Sudden? | 27 |
Copyright | |
14 other sections not shown
Common terms and phrases
acid activity amount animals appeared atmosphere atoms became become believed birds body boundary carbon caused clays climate close cloud comet concentration consider continue cool course crater Cretaceous crust darkness dense depends difficult dinosaurs disappeared dust Earth effect elements energy enter entirely environment event example exist explanation extinctions fact fish fossils happened heat human impact increase iridium kilometers kind known land larger later layer least less living major mammals mass material matter means metals meteorites miles million move natural North occurred ocean orbit organisms original osmium oxygen particles particular perhaps period planetesimal plants possible present probably produce radiation reached reason remains reptiles rock seems similar soil solar system solid sound species speed suggested suppose surface temperature tion warm waves