The Great Extinction |
Contents
Introduction | 9 |
A Body Has Been Found | 13 |
Clues from the Clays | 24 |
Copyright | |
10 other sections not shown
Common terms and phrases
65 million acid aerosols Alvarez amount angiosperms archosaurs atoms biological birds body boundary clays carnivores catastrophe caused chemical climate cloud comet concentrations continental cool crater crust dense dinosaurs disappeared dust Earth effect eggs elements energy entered the atmosphere environment eruption event evolved exist explosion fish formed fossils galaxy Gubbio habitat happened heat hemisphere herbivores homoiothermic human increase iridium iridium and osmium isotopes kilometres per second Krakatoa land latitudes layer less magnetic field mammals mass material metals meteorites metres microorganisms million years ago Mount St Helens move nitrogen noble metals North Atlantic occurred ocean orbit osmium ovoviviparous oxides oxygen ozone particles perhaps planetesimal planetesimal impact plants plasma poikilotherms possible probably produce pterosaurs radiation remains reptiles rock seabed soil solar system solid species stratosphere supernova surface survived temperature terrestrial Tertiary tropopause troposphere viviparous volcanic warm waves