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Showing posts with the label The evolutionary history of life on Earthtraces the processes by which both living organisms and fossil organisms evolvedsince life emerged on the planet

Evolution of life on earth

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Evolution of life on Earth Date.    Gya .    Event.  14 Sep4.1First known "remains of  biotic life " found in 4.1 billion-year-old rocks in  Western Australia . [5] [6] 21 Sep3.8 First Life ( Prokaryotes ) [7] [8] [9] 30 Sep3.4 Photosynthesis 29 Oct2.4 Oxygenation of Atmosphere 9 Nov2Complex Cells ( Eukaryotes ) 5 Dec0.8 First Multicellular Life [10] 7 Dec0.67Simple  Animals 14 Dec0.55 Arthropods  (ancestors of insects, arachnids)  17 Dec0.5 Fish  and Proto-amphibians 20 Dec0.45 Land Plants 21 Dec0.4 Insects  and  Seeds 22 Dec0.36 Amphibians 23 Dec0.3 Reptiles 24 Dec0.25 Permian-Triassic Extinction Event , 90% of Species Die Out 2 5 Dec0.23 Dinosaurs 26 Dec0.2 Mammals 27 Dec0.15 Birds 28 Dec0.13 Flowers 30 Dec, 06:240.065 Cretaceous–Paleogene extinction event , Non-avian Dinosaurs Die Out [11]
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