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The History of Life on Earth
Transcript of The History of Life on Earth
Ends: 543 Mi Cambrian
Ends: 490 Mi Ordovician
Ends: 443 Mi Silurian
Ends: 417 Mi Devonian
Ends: 354 Mi Carboniferous
Ends: 290 Mi Permian
Ends: 248 Mi Triassic
Ends: 206 Mi Jurassic
Ends: 144 Mi Cretaceous
Ends: 65 Mi Pliocene
Ends: 1.8 Mi scale: 1 line= 22 mi scale: 1 line= 22 mi scale: 1 line= 22 mi Key: a period of 22 million years number number Mi: million years ago or number number number number a period of 304 million years Period
Ends: year Mi Important period in history 854 mi 2982 mi 2678 mi 2374 mi 2070 mi 1766 mi 1462 mi 1158 mi 3286 mi 3590 mi 3894 mi 4198 mi 4502 mi 4806 mi Hadean
3800 Mi The world begins around 4550 mi...
This begins the Hadean period 4550: Solar System Created Gases build atmosphere Earth's core is created Meteorites bombard the Earth creating it's surface The oceans form The oldest known rocks came from here, dating 4055 mi First evidence of life 3850 mi Archaean
2500 Mi small continents form and begin to move Bacteria evolve and begin using photosynthesis Oldest Fossil created 3,500 mi First Eukaryote Bacteria move to the land Banded Iron that has rust gives proof that oxygen is being created in the oceans at 2,500 mi Precambrian Era scale: 1 line= 304 mi The protective ozone layer forms in the atmosphere which allows life which was previously forced to live in the sea the ability to live on land Coal is created by forests being flooded and the plants can't decompose and eventually due to extreme heat and pressure turn into coal Animals that later become reptiles develop, 350 mi Conifers, a tree, develop and dominate forests Bacteria Archaean Eukaryote Algae worm-like soft bodied creatures Proterozoic First Evidence of Life Hadean Gondwana, a supercontinent forms in the southern hemisphere First appearance of Arthropods, 540 mi Archaeocyathids, which are sponge like animals, build the first reefs and go extinct 15 million years after. Stromatoporoids and later corals evolve. Animals begin to develop hard shells to protect and support their bodies. Shells, tubes, and spines are present, all made of calcium phosphate or calcium carbonate and add a lot to the fossil record. The Cambrian explosion Chordates, which include vertebrates, develop. What sets them differently is that have a stiff but flexible rod that runs down their back (notochord) due to what is thought to be sea level changes and oxygen loss, animals that build the reefs and shallow water organisms go extinct Green Algae paves the way for life as it follows bacteria to the land, leaving its predators back at sea SHARKS! Fish evolve, but the jawless fish have trouble competing with other types of fish and sharks so only hagfish and lampreys are alive today Due to Glaciers and oxygen depletion, 25% of marine invertebrate families and 57% of the genera go extinct When Laurentia and Baltica collide, the very beginning of the Appalachian mountain range forms, along with mountains in Greenland, Scotland, Ireland and Norway Vascular plants form on land, growing only a few centimeters tall the send their stems up toward the sky for sunlight an reproduce with pores. They have roots that go deeper which allows them to capture the nutrients that previous plants could not and they are better able to colonize the surface Arthropods lead the way for animals as they make their way on the land Oxygen is almost at 21% Amphibians are the first four legged creatures on land. Despite this, they maintain a connections to the water as they feed on fish and lay eggs in water were the larvae survive seed plants evolve which allows plants to reproduce away from water in drier habitats "50-55% of marine invertebrate genera and 70-80% of species go extinct" due possibly to meteor impacts, volcanism, ocean acidity, lack of oxygen, and glaciers Pangaea Forms and the interior dries at 280 mi Cycads evolve, and reptitles with cold blood but have life birth evolve. They are the mammalian successors, but only two families survive. 90% of all species go extinct at 250 mi, due to volcanism, sea levels, acidity, global warming, glaciers, and meteors Pterosaurs , birds and bats take to the sky develop as the first flying reptiles. True mammals come to existence, as well as the dinosaurs who are mostly two legged, and the dinosaurs will continue to develop through the Jurassic and Cretaceous periods. Crocodiles come around 220 mi. Fifty percent of marine genera and land animals go extinct Birds, 150 mi. Thought to be decedents from theropods especially due to a discovery in China that theropods developed feathers for warmth. Pangaea splits apart separating species and allowing the development of new species (cc) photo by medhead on Flickr Flowering Plants Evolve Tropical Climate spreads all over the world 60-80% of species go extinct, including the Dinosaurs credit: http://earthobservatory.nasa.gov/IOTD/view.php?id=7373 Paleocene
Ends: 54 Mi Eocene
Ends: 33 Mi Oligocene
Ends: 24 Mi Milocene
Ends: 5.3 Mi Pleistocene
Ends: .01 Mi Holocene (Today) Primates, Bats, and Rodents evolve whales go back to the sea, now thought to be evolved from land mammels due to the close charatirstics they share. The earth begins to cool and wipes out 50-90% of land species in certain areas Grass Comes into existence Apes and Humanoid Creatures Humans split from Apes and later Chimpanzee and develope in Africa. Grazing horses, orangutan, and kelp forests also evolve Ice Ages Modern Humans develop, and wip out almost all mammals and birds over 45 pounds with overhunting and help from climate chagne. These mammals include early humans. Congrats! You have made it through all 89 stops on the prezi, only a couple more to go, no new informatin, just pictures and work cited. Hard-Shelled animals Marine reefs (Archaeocyathids, stromatoporoids, corals) Arthropods Chordates Jawless fish Shark Fish Green Algae Arthropods on land Vescular Plants seed plants Amphibians Cycads Mammel-like reptiles Bats birds Mammels Crocodiles Pterosaurs Dinasaurs Birds Flowering Plants Rodents Whales Bats Primates Ape grass Chimpanzee Kelp Forests Humanoid Orangutan Horses Modern Human http://en.wikipedia.org/wiki/Bacteria http://www.eplantscience.com/botanical_biotechnology_biology_chemistry/eukaryote.php http://www.nationalalgaeassociation.com/ http://rudhro.wordpress.com/2010/05/25/the-burgess-shale-fossils-a-rocky-mountain-treasure-trove-found-in-1909-just-west-of-the-b-c-alberta-border-represent-the-planets-single-most-important-snapshot-of-life-as-it-existed-during-the-s/ http://suptg.thisisnotatrueending.com/archive/3138463/ http://waynesword.palomar.edu/tahoe1.htm http://www.gigwise.com/photos/52397/2/weird-animals-named-after-rock-stars---photos http://www.zmescience.com/science/pikaia-chordata-ancestor-06032012/ http://www.fcps.edu/islandcreekes/ecology/green_algae.htm http://www.elasmo-research.org/education/evolution/ancient.htm http://www.nilesbio.com/subcat237.html http://www.hoax-slayer.com/fish-hands-legs.shtml http://hcs.osu.edu/hcs300/svp1.htm http://nationalzoo.si.edu/Animals/PhotoGallery/AsiaTrail/8.cfm http://en.wikipedia.org/wiki/Amphibian http://gardening.savvy-cafe.com/category/plant-flower-types/seed-plants/ http://www.moplants.com/blog/?p=1077 http://www.ask.com/wiki/Mammal-like_reptiles http://ngm.nationalgeographic.com/2007/12/bizarre-dinosaurs/updike-text.html http://true-wildlife.blogspot.com/2011/02/crocodile.html http://www.readyed.com.au/Sites/zoo/mammal.htm http://hometown-pasadena.com/events/how-birds-can-save-the-world http://en.wikipedia.org/wiki/Bat http://animals.howstuffworks.com/extinct-animals/pterosaur-info.htm http://www.birds.com/ http://waynesword.palomar.edu/trmar98.htm http://visual.merriam-webster.com/animal-kingdom/primate-mammals/examples-primates_1.php http://en.wikipedia.org/wiki/Bat http://wahi.typepad.com/the_streets_where_we_live/2009/12/mayors-rodent-task-patrol-hold-the-jokes-please.html http://www.cryptomundo.com/cryptozoo-news/georgiacetus/ http://www.redorbit.com/news/science/2089884/paleontologists_unearth_ancient_ape_skull_in_uganda/ http://free-extras.com/images/grass-603.htm http://horsebreaking.wordpress.com/2009/05/20/the-history-of-horse-breaking/ http://animals.nationalgeographic.com/animals/mammals/orangutan/ http://jellieszone.com/kelpforest.htm http://animals.nationalgeographic.com/animals/mammals/chimpanzee/ http://www.livescience.com/15130-upright-walking-footprints-human-ancestors.html http://en.wikipedia.org/wiki/Anatomically_modern_humans Cambrian Ordovician Silurian Devonian Permian Triassic Jurassic Cretaceous Paleocene Eocene Oligocene Miocene Pleistocene Work Cited:
All pictures have the website next to the picture Kelsey Adamson http://www.ucmp.berkeley.edu/geology/tecall1_4.mov The link below gives a moving image of the earth's plate techtonics from 730 mi to today