Operation+Earth+4.6+Headquarters

Operation Earth 4.6 Official Headquarters Resource Center: 1. UC Berkeley Geologic Timeline 2. Chronozoom Big History Timeline 3. United States Geologic Survey (USGS) 4. Wikipedia Geologic Time 5. British Geologic Survey Geologic Timeline 6. Virtual fossil museum 7. Images in Time (University of Kentucky) Additional Resources: Hadean - [|4.4 billion year old zircon crystals]  - The Late Heavy Bombardment Archean - [|North American continent formed during....]  - Supercontinent Ur Proterozoic <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Late Proterozoic world map  <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Cryogenian period and Snowball Earth  <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Ediacaran period- strange life forms <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">Cambrian <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- The Cambrian Explosion and intense evolution <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">Ordovician <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Supercontinents Gondwana and Laurentia  <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Life in the water and the Ordovician Ice Age <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">Silurian <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Plants and animals finally emerge on land..  <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Extensive seas and the first arachnids <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">Devonian <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- The Age of Fishes  <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Warm waters and the first swamps <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">Carboniferous <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">- "The coal age" and 20 foot long amphibians <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">- Pre-Pangea and Oxygen up <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;"> Permian <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">- Therapsids, big reptiles, and major extinct <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">- Pangea and expanding deserts <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">Triassic <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">- Big deserts and the first dinosaurs <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">Jurassic <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">- Dinosaur domination and the first birds <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">Cretaceous <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">- High seas and giant gliders <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">Eocene <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">- The Himalayas and early mammals <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">Oligocene <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">- First primates, elephants, and wide-open spaces <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">Miocene <span style="color: #22521b; display: block; font-family: Georgia,serif; font-size: 16.8999996185303px; line-height: 17.7272720336914px;">- The rise of the mammals <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">Pliocene: <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;"> - Largest rodent ever  <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Grasslands and grazing animals <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">Pleistocene <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- The time of twenty ice ages <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">Holocene <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Forests spread, then they shrink <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">Ediacaran <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- The strange, gentle creatures  <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Toothless, boneless, and alive <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">Pennsylvanian <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- The great coal swamp forests <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">Mississippian <span style="color: #22521b; font-family: Georgia,serif; font-size: 130%;">- Tetrapods, crinoids, and mountain building events