This document provides an overview of evolution on Earth from the earliest life forms to present day. It describes the major eras and events in life's history, including the earliest bacteria and multicellular organisms, the Cambrian explosion of diversification, the rise of plants and animals through the Palaeozoic, Mesozoic, and Cenozoic eras, several mass extinction events, and the radiation and dominance of mammals and modern species. The timeline spans from 4.5 billion years ago to the most recent ice age around 18,000 years ago.

2. Evolution History of Life on Earth Evolution

5. 11/16/09 Evolution

6. Precambrian Evolution

7. 11/16/09 Evolution

8. 11/16/09 Evolution

10. 11/16/09 Evolution

12. Early Palaeozoic Evolution

13. Molluscs

14. Evolution Trilobite

16. 11/16/09 Evolution

17. Middle Palaeozoic Evolution Dunkleostus

18. 11/16/09 Evolution

19. 11/16/09 Evolution

23. 11/16/09 Evolution

24. Late Palaeozoic Evolution Coal Swamp

25. Evolution Dimetrodon

26. 11/16/09 Evolution “ Dinosaur” Comes from the greek “deinos” for “terrible, powerful, and wondrous” and from another greek word “sauros” for “lizard”

28. 11/16/09 Evolution

29. Evolution

31. 11/16/09 Evolution

32. Evolution Plesiosaur Pleiosaur

34. 11/16/09 Evolution

35. Evolution Tyrannosaurus rex

36. Compsognathus Triceratops Brachiosaurus Pteranodon

37. Spinosaurus

38. Basilosaurus

39. Alphodon

41. 11/16/09 Evolution

43. Chicxulub Impact Site

46. 11/16/09 Evolution

47. Evolution Uintatherium Rhodocetus

48. Evolution

49. Evolution

50. Evolution

52. 11/16/09 Evolution

53. Evolution Mammoth Giant Sloth

54. Evolution

55. Evolution

56. Evolution