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Geological Time Scale

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Geological Time Scale Mind Map on Geological Time Scale, created by Saira Javed on 13/07/2014.
Saira Javed
Mind Map by Saira Javed, updated more than 1 year ago
Saira Javed
Created by Saira Javed over 10 years ago
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Resource summary

Geological Time Scale
  1. Precambrian
    1. Bacteria
      1. Photosynthesis
        1. O2 poor to O2 rich
          1. O3
            1. UV H2O
          2. Stromatolites
          3. Eukaryotic cells 2100 Ma
            1. Multicellular 1200 Ma
              1. Sexual reproduction
                1. Variation
                  1. Eukaryotes specialised
                    1. Multicellular animals
                      1. Ediacaran fauna
            2. Phanerozoic
              1. Mesozoic
                1. Cretaceous
                  1. Flowering plants
                    1. K-Pg mass extinction
                      1. Dinosaur extinction
                        1. Meteorite and Volcano
                          1. CO2, SO2, dust
                            1. PH acidic
                              1. Photosynthesis reduced
                                1. Autotrophs -food source
                        2. Triassic
                          1. Mammals
                            1. Small
                            2. Dinosaurs dominate
                            3. Jurassic
                              1. Birds
                            4. Palaeozoic
                              1. Cambrian (explosion)
                                1. Sea
                                  1. Chordates
                                    1. Vertebrates
                                      1. Jaw-less fish
                                    2. Burrowing
                                      1. Body organised into areas
                                        1. Shells/skeletons
                                          1. Excretion deposits
                                            1. Advantageous
                                        2. Ordovician
                                          1. More fish, diversity
                                          2. Devonian
                                            1. Trees
                                              1. Seeds
                                                1. Inland colonised
                                                2. Abundant fish
                                                  1. Vertebrates part-land
                                                    1. Large amphibians
                                                    2. Plant stems, root hairs
                                                    3. Silurian
                                                      1. Jawed fish
                                                        1. Plants and animals to land and freshwater
                                                          1. Insects
                                                            1. Anthopods
                                                              1. Adaptations
                                                                1. Gravity
                                                                  1. Plant stomata, outer coat
                                                              2. Carboniferous
                                                                1. Reptiles
                                                                  1. Shelled eggs
                                                                  2. Coal
                                                                2. Cenozoic
                                                                  1. Palaeogene
                                                                    1. Radiation of mammals
                                                                    2. Homo Sapiens
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