History of life on earth - PowerPoint PPT Presentation

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History of life on earth
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History of life on earth

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  1. History of life on earth

  2. hadean cenozoic archaean paleozoic mesozoic proterozoic Millions of years ago

  3. Precambrian Archaean Proterozoic Phaenerozoic Paleozoic Cambrian Ordovician Silurian Devonian Carboniferous Permian Mesozoic Triassic Jurassic Cretaceous Cenozoic Tertiary Quaternary (Pleistocene - Recent)

  4. Precambrian - Archaean Stromatolites -definitive fossil life 3.5BYA

  5. Precambrian - Proterozoic Prokaryotes + Eukaryotes -trace fossils -Ediacaran fauna

  6. Precambrian - Proterozoic Ediacaran fauna

  7. Precambrian Archaean Proterozoic Phaenerozoic Paleozoic Cambrian Ordovician Silurian Devonian Carboniferous Permian Mesozoic Triassic Jurassic Cretaceous Cenozoic Tertiary Quaternary (Pleistocene - Recent)

  8. Phaenerozoic - Paleozoic - Cambrian Cambrian explosion Why did such great fundamentally different body plans evolve in such great profusion in early evolutionary history but hardly at all thereafter? How and why did so many great changes evolve in such a short period of time? rapid diversification of higher taxa

  9. Phaenerozoic - Paleozoic - Cambrian

  10. Phaenerozoic - Paleozoic - Cambrian Burgess shale

  11. Phaenerozoic - Paleozoic - Cambrian Conodonts -earliest vertebrates -teeth of cellular bone

  12. Phaenerozoic - Paleozoic - Ordovician -fauna differs remarkably from Cambrian -fish-like vertebrates appear -large nautiloids

  13. Phaenerozoic - Paleozoic - Silurian Eurypterids - water scorpions

  14. Phaenerozoic - Paleozoic - Silurian -first gnathostomes Acanthodians Placoderms Osteichthyes

  15. Phaenerozoic - Paleozoic - Devonian -sarcopterygii, actinopterygii -ammonoids

  16. Phaenerozoic - Paleozoic - Devonian -chelicerates -mandibulates

  17. Precambrian Archaean Proterozoic Phaenerozoic Paleozoic Cambrian Ordovician Silurian Devonian Carboniferous Permian Mesozoic Triassic Jurassic Cretaceous Cenozoic Tertiary Quaternary (Pleistocene - Recent)

  18. Phaenerozoic - Paleozoic - Devonian -ichthyostega

  19. Phaenerozoic - Paleozoic - Carboniferous & Permian -sharks diversified

  20. Phaenerozoic - Paleozoic - Carboniferous & Permian -winged insects

  21. Phaenerozoic - Paleozoic - Carboniferous & Permian -amphibians diversified

  22. Phaenerozoic - Paleozoic - Carboniferous & Permian -amniotes gave rise to synapsids & diapsids mammals reptiles

  23. Precambrian Archaean Proterozoic Phaenerozoic Paleozoic Cambrian Ordovician Silurian Devonian Carboniferous Permian Mesozoic Triassic Jurassic Cretaceous Cenozoic Tertiary Quaternary (Pleistocene - Recent)

  24. Phaenerozoic - Mesozoic - Triassic, Jurassic, Cretaceous coccolithophores

  25. Phaenerozoic - Mesozoic - Triassic, Jurassic, Cretaceous -frogs, lizards, snakes, turtles

  26. Phaenerozoic - Mesozoic - Triassic, Jurassic, Cretaceous archosaurs

  27. Phaenerozoic - Mesozoic - Triassic, Jurassic, Cretaceous Archosaurs phytosaurs pterosaurs crocodilians dinosaurs

  28. Phaenerozoic - Mesozoic - Triassic, Jurassic, Cretaceous Dinosaurs saurischians theropods sauropods

  29. Phaenerozoic - Mesozoic - Triassic, Jurassic, Cretaceous Dinosaurs ornithischians hadrosaurs ceratopsians

  30. Precambrian Archaean Proterozoic Phaenerozoic Paleozoic Cambrian Ordovician Silurian Devonian Carboniferous Permian Mesozoic Triassic Jurassic Cretaceous Cenozoic Tertiary Quaternary (Pleistocene - Recent)

  31. Phaenerozoic - Cenozoic - Tertiary marsupials radiated colubrids radiated flightless birds appeared

  32. Phaenerozoic - Cenozoic - Tertiary -bats & apes appear

  33. Phaenerozoic - Cenozoic - Tertiary edentates

  34. Phaenerozoic - Cenozoic - Tertiary artiodactyls

  35. Phaenerozoic - Cenozoic - Tertiary perissodactyls

  36. Phaenerozoic - Cenozoic - Tertiary teleosts diversified whales & sealions appeared

  37. Precambrian Archaean Proterozoic Phaenerozoic Paleozoic Cambrian Ordovician Silurian Devonian Carboniferous Permian Mesozoic Triassic Jurassic Cretaceous Cenozoic Tertiary Quaternary (Pleistocene - Recent)

  38. Phaenerozoic - Cenozoic - Pleistocene - present similar fauna to today

  39. Phaenerozoic - Cenozoic - Pleistocene - present 4 major glaciations -more to come