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Cenozoic History Timeline

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Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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1. Australopithecines go extinct.
20 Ma
1.7 Ma
6 Ma
35 Ma

2. Yellowstone caldera erupts
0.64 Ma
3 Ma
35 Ma
2.7 Ma

3. last reversal of the earth's magnetic field
34 Ma
0.7 Ma
2.7 Ma
3 Ma

4. First mastodons - bovids - and kangaroos. Australian megafauna diversify.
15 Ma
3 Ma
0.3 Ma
36 Ma

5. Africa collides with Eurasia - closing the Tethys Sea. Divergence of cat and dog ancestors. Primates diversify. Brontotheres - tapirs - rhinos - and camels evolve.
37 Ma
5 Ma
50 Ma
34 Ma

6. Age of the Catarrhini parvorder; first canines evolve. Lepidopteran insects become recognizable. Gastornis goes extinct. Basilosaurus evolves.
40 Ma
20 Ma
36 Ma
3 Ma

7. start of the Pleistocene epoch - the Stone Age and the current Quaternary period; emergence of the genus Homo. Smilodon - the best known of the sabre-toothed cats - appears.
0.35 Ma
2.5 Ma
28 Ma
34 Ma

8. Paraceratherium evolves.
28 Ma
26 Ma
10 Ma
15 Ma

9. Insects diversify.First large horses.
20 Ma
10 Ma
0.6 Ma
2.6 Ma

10. The mammoth appears.
28 Ma
2.7 Ma
4.8 Ma
1.2 Ma

11. Cats evolve.
34 Ma
25 Ma
30 Ma
56 Ma

12. First Nimravids.
0.35 Ma
0.64 Ma
37 Ma
60 Ma

13. First members of the Hominini tribe.
6.5 Ma
20 Ma
2.5 Ma
0.7 Ma

14. Emergence of the first true elephants.
0.64 Ma
1.2 Ma
26 Ma
25 Ma

15. Insects diversify.First large horses.
6 Ma
10 Ma
52 Ma
2.6 Ma

16. Whales return to the water.
49 Ma
1.7 Ma
2.5 Ma
5 Ma

17. Age of the Catarrhini parvorder; first canines evolve. Lepidopteran insects become recognizable. Gastornis goes extinct. Basilosaurus evolves.
50 Ma
60 Ma
40 Ma
2.5 Ma

18. Africa collides with Eurasia - closing the Tethys Sea. Divergence of cat and dog ancestors. Primates diversify. Brontotheres - tapirs - rhinos - and camels evolve.
34 Ma
30 Ma
50 Ma
56 Ma

19. Estimated age of the Homo/Pan (human vs. chimpanzee) split.
5.4-6.3 Ma
26 Ma
5.5 Ma
3 Ma

20. last reversal of the earth's magnetic field
1.5 Ma
34 Ma
0.7 Ma
26 Ma

21. Estimated age of the Hominidae/Hylobatidae (great apes vs. gibbons) split.
18-12 Ma
36 Ma
49 Ma
50 Ma

22. current ice age begins
2.6 Ma
20 Ma
56 Ma
3 Ma

23. Whales return to the water.
36 Ma
49 Ma
2.7 Ma
63 Ma

24. Paraceratherium evolves.
28 Ma
5 Ma
5 Ma
6 Ma

25. Estimated age of the Homo/Pan (human vs. chimpanzee) split.
30 Ma
5.4-6.3 Ma
0.2 Ma
5 Ma

26. Evolution of the first primates and miacids. Flightless birds diversify.
30 Ma
37 Ma
49 Ma
60 Ma

27. The mammoth appears.
4.8 Ma
15 Ma
37 Ma
60 Ma

28. Appearance of the genus Ardipithecus
0.35 Ma
5.5 Ma
55 Ma
4.8 Ma

29. Paranthropus evolve.
0.79 Ma
5.4-6.3 Ma
2.6 Ma
2.7 Ma

30. Neanderthals evolve.
0.35 Ma
3 Ma
2.6 Ma
52 Ma

31. Australopithecines diversify.
2.5 Ma
5.5 Ma
6 Ma
0.3 Ma

32. First thylacinid marsupials evolve.
0.79 Ma
25 Ma
0.6 Ma
33 Ma

33. start of the Pleistocene epoch - the Stone Age and the current Quaternary period; emergence of the genus Homo. Smilodon - the best known of the sabre-toothed cats - appears.
56 Ma
2.5 Ma
35 Ma
63 Ma

34. The island of theIndian subcontinent collides with Asia - thrusting up the Himalayas and the Tibetan Plateau. Many modern bird groups appear.First whale ancestors.First rodents - lagomorphs - armadillos - sirenians - proboscideans - perissodactyls -
3 Ma
55 Ma
18-12 Ma
0.64 Ma

35. First deer.
35 Ma
30 Ma
18-12 Ma
25 Ma

36. First thylacinid marsupials evolve.
55 Ma
0.6 Ma
33 Ma
28 Ma

37. Earliest demonstrable evidence of the controlled use of fire by Homo erectus
0.79 Ma
30 Ma
10 Ma
50 Ma

38. Gastornis evolves.
52 Ma
0.2 Ma
56 Ma
28 Ma

39. Neogene period and Miocene epoch begin
0.3 Ma
60 Ma
36 Ma
24 Ma

40. Brontotheres go extinct. Pigs evolve. South America separates from Antarctica - becoming an island continent.
1.7 Ma
49 Ma
2.6 Ma
30 Ma

41. Isthmus of Panama joins North and South America. Great AmericanInterchange.
24 Ma
56 Ma
3 Ma
0.64 Ma

42. Giraffes and giant anteaters evolve.
5.5 Ma
20 Ma
2.6 Ma
0.6 Ma

43. Middle Paleolithic begins. Appearance of Homo sapiens in Africa
0.35 Ma
24 Ma
18-12 Ma
0.2 Ma

44. Appearance of the genus Ardipithecus
5.5 Ma
15 Ma
1.5 Ma
3 Ma

45. Brontotheres go extinct. Pigs evolve. South America separates from Antarctica - becoming an island continent.
6 Ma
5.4-6.3 Ma
30 Ma
5.5 Ma

46. Giraffes and giant anteaters evolve.
20 Ma
4.5 Ma
1.7 Ma
0.79 Ma

47. Pliocene epoch begins.First tree sloths and hippopotami.First large vultures. Nimravids go extinct.
2.7 Ma
5 Ma
55 Ma
52 Ma

48. Yellowstone caldera erupts
0.2 Ma
26 Ma
0.64 Ma
5.4-6.3 Ma

49. Evolution of the first primates and miacids. Flightless birds diversify.
60 Ma
26 Ma
20 Ma
40 Ma

50. Neogene period and Miocene epoch begin
24 Ma
0.35 Ma
2.7 Ma
55 Ma

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Cenozoic History Timeline

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