Geologic Time By kbruyneel Period: Jan 1, 2015 to Nov 17, 2015 Precambrian time Jan 29, 2015 First crustal rock forms Feb 13, 2015 Earths surface is cool enough for liquid watern Feb 20, 2015 First known unicellular life appears Sep 10, 2015 Earths atmosphere starts to becme oxygen rich Sep 30, 2015 First known multicellular life appears Oct 21, 2015 First fungi appear Nov 16, 2015 First shelled organisms, such as arthropods ans mollusks, ppear Nov 17, 2015 Pleozoic Era video Paleozoic Era video Period: Nov 17, 2015 to Dec 10, 2015 Palezoic Era Nov 18, 2015 First possible vertebrates appear Nov 20, 2015 Modern, oxygen-rich atmosphere has formed Nov 24, 2015 First land plants appear Nov 28, 2015 First athropodsappear on land Nov 30, 2015 First amphibians appear Dec 5, 2015 First reptiles appear Dec 7, 2015 Formation of pangea is complete Dec 9, 2015 Permian mass extinction results from major enviromental changes Dec 10, 2015 Mesozoic Era video Mesozoic Era Video Dec 10, 2015 Mesozoic Era Article Mesozoic Era Article Period: Dec 10, 2015 to Dec 25, 2015 Mesozoic Era Mesozoic Era video (very old only one I found) Dec 12, 2015 Pangea begins to break apart Dec 14, 2015 First mammals appear Dec 18, 2015 First primative birds appear Dec 20, 2015 First flowering plants appear Dec 22, 2015 First modern birds appear Dec 25, 2015 The last dinosaurs become extinct. Castrophic meteroit appears Dec 25, 2015 Cenozoic Era Article Cenozoic Era Article Period: Dec 25, 2015 to Dec 31, 2015 Cenozoic Era Dec 27, 2015 Most modern mammal families, including whales, carnivores, hooved animalsand primates have appeared Dec 28, 2015 First grasses appear Dec 29, 2015 India collides with Asia and Antartica drifts over South pole Dec 29, 2015 First hominids appear Dec 30, 2015 Modern Ice Age begin Dec 31, 2015 Modern humans appear
