Geologic Time By smkblack Period: Jan 1, 2015 to Nov 17, 2015 Precambrian Time Jan 10, 2015 First Crustal Rocks Form Jan 31, 2015 First Known Unicellular Life Appears Oct 12, 2015 First Multicellular Life Appears How did Multicellualr Life Evolve? Oct 28, 2015 First Fungi Appear Nov 15, 2015 First Shelled Organisms, Such As Arthropods and Mollusks Appear Period: Nov 18, 2015 to Dec 12, 2015 Paleozoic Time Nov 24, 2015 First Land Plants Appear http://ecflora.cavehill.uwi.edu/bio_courses/bl14apl/conq.htm Nov 27, 2015 First Arthopods Appear on Land https://www.youtube.com/watch?v=-jNNvjJkLoc Dec 3, 2015 First Amphibians Appear http://www.edgeofexistence.org/amphibian_conservation/ancient_amphibians.php Dec 10, 2015 Pangea Forms Dec 10, 2015 First Reptiles Appear Period: Dec 13, 2015 to Dec 26, 2015 Mesozoic Time Dec 14, 2015 Pangea Breask Apart Dec 14, 2015 First Primative Birds Appear Dec 17, 2015 First Flowering Plants (angiosperms) Appear http://news.harvard.edu/gazette/1999/12.16/angiosperms.html Dec 20, 2015 First Mammals Appear Dec 20, 2015 First Modern Birds Appear Period: Dec 26, 2015 to Dec 31, 2015 Cenozoic Time Dec 27, 2015 Most Modern Mammals Appear Dec 29, 2015 First Grasses Appear Dec 29, 2015 First Hominids Appear https://www.youtube.com/watch?v=gkM3iFn7eLc Dec 30, 2015 Modern Ice Age Begins Dec 31, 2015 Modern Humans Appear
