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1068453
Geological Time Scale
Description
Geological Time Scale Mind Map on Geological Time Scale, created by Saira Javed on 13/07/2014.
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geological time scale
Mind Map by
Saira Javed
, updated more than 1 year ago
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Created by
Saira Javed
over 10 years ago
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Resource summary
Geological Time Scale
Precambrian
Bacteria
Photosynthesis
O2 poor to O2 rich
O3
UV H2O
Stromatolites
Eukaryotic cells 2100 Ma
Multicellular 1200 Ma
Sexual reproduction
Variation
Eukaryotes specialised
Multicellular animals
Ediacaran fauna
Phanerozoic
Mesozoic
Cretaceous
Flowering plants
K-Pg mass extinction
Dinosaur extinction
Meteorite and Volcano
CO2, SO2, dust
PH acidic
Photosynthesis reduced
Autotrophs -food source
Triassic
Mammals
Small
Dinosaurs dominate
Jurassic
Birds
Palaeozoic
Cambrian (explosion)
Sea
Chordates
Vertebrates
Jaw-less fish
Burrowing
Body organised into areas
Shells/skeletons
Excretion deposits
Advantageous
Ordovician
More fish, diversity
Devonian
Trees
Seeds
Inland colonised
Abundant fish
Vertebrates part-land
Large amphibians
Plant stems, root hairs
Silurian
Jawed fish
Plants and animals to land and freshwater
Insects
Anthopods
Adaptations
Gravity
Plant stomata, outer coat
Carboniferous
Reptiles
Shelled eggs
Coal
Cenozoic
Palaeogene
Radiation of mammals
Homo Sapiens
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