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6. In the 542 MA Era what was the second system?

  • Carboniferous
  • Devonian
  • Cambrian

7. How long ago was the Palaeozoic Era?

  • 356
  • 542
  • 251

8. Which is the oldest system in the Palaeozoic Era?

  • Cambrian
  • Carboniferous
  • Precambrian

9. What is the second system in the Cenozoic Era?

  • Palaeogene
  • Neogene
  • Denogene

10. What is the 3rd Systems in the Palaeozoic Era called?

  • Devonian
  • Silurian
  • Ordovician

11. What are the different systems in the Palaeozoic Era?

  • Permian, Carboniferous, Devonian, Silurian, Ordovician, Cambrian
  • Triassic, Devonian, Neogen, Silurian, Ordovician, Cretaceous
  • Carboniferous, Palaeogene, Permian, Cambrian, Precambrian, Jurassic

12. Which Era is the most recent?

  • Cenozoic
  • Precambrian
  • Cambrian

13. How long ago was the Precambrian period?

  • 1450
  • 4500
  • 5400

14. Which system was the most recent in the Mesozoic Era?

  • Cretaceous
  • Triassic
  • Jurassic

15. Which system is the most recent in the Mesozoic Era?

  • Cretaceous
  • Jurassic
  • Triassic

16. How many systems does the Palaeozoic Era have?

  • 7
  • 6
  • 4

17. What is another word for system?

  • Period
  • System
  • Era

18. Which Era does the Triassic system belong to?

  • Mesozoic
  • Cenozoic
  • Precambrian

19. What are the two systems in the Cenozoic Era?

  • Neogene, Palaeogene
  • Cretaceous, Permian
  • Carboniferous, Neogene

20. How long ago was the Mesozoic Era?

  • 251
  • 521
  • 215