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Paleozoic History Timeline

Subjects : trivia, history
Instructions:
  • Answer 48 questions in 15 minutes.
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  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. First crabs and ferns.






2. First jawless fishes.






3. First large sharks - ratfish and hagfish.






4. Beginning of the Cambrian period - the Paleozoic Era and the Phanerozoic (current) Eon. End of the Ediacaran Period - the Proterozoic Eon and the Precambrian Supereon. Time since the Cambrian explosion the emergence of most forms of complex life - in






5. First cephalopods and chitons.






6. First agnathan fish.






7. Possible early land animals.






8. First of many modern groups - including tetrapods.






9. Plants and arthropods colonize the land. Sharks evolve.






10. First agnathan fish.






11. Possible early land animals.






12. First synapsids evolve.






13. Plants and arthropods colonize the land. Sharks evolve.






14. End of Carboniferous and beginning of Permian Period. By this time - all continents have fused into the supercontinent of Pangaea. Beetles evolve. Seed plants and conifers diversify along with temnospondyls and pelycosaurs.






15. First diapsids evolve.






16. First toothed fish and nautiloids.






17. First creature took a breath of air.First ray-finned fish and land scorpions.






18. Permian mass extinction. End of Permian Period and of the Palaeozoic Era. Beginning of Triassic Period - the Mesozoic era and of the age of the dinosaurs.






19. First graptolites.






20. First of many modern groups - including tetrapods.






21. Fossilization of the Burgess Shale.






22. The evolution of the first reptiles.






23. Beginning of the Ordovician and the end of the Cambrian period.






24. Beginning of the Silurian and the end of the Ordovician period.






25. First crabs and ferns.






26. First amniotes evolve.






27. The evolution of the first reptiles.






28. Beginning of the Carboniferous and the end of Devonian period. Amphibians diversify.






29. First large sharks - ratfish and hagfish.






30. First cephalopods and chitons.






31. First synapsids evolve.






32. First therapsids evolve.






33. First toothed fish and nautiloids.






34. First graptolites.






35. Beginning of the Devonian and end of the Silurian period.First insects.






36. Beginning of the Ordovician and the end of the Cambrian period.






37. First diapsids evolve.






38. First jawless fishes.






39. End of Carboniferous and beginning of Permian Period. By this time - all continents have fused into the supercontinent of Pangaea. Beetles evolve. Seed plants and conifers diversify along with temnospondyls and pelycosaurs.






40. Fossilization of the Burgess Shale.






41. Beginning of the Devonian and end of the Silurian period.First insects.






42. Beginning of the Silurian and the end of the Ordovician period.






43. Beginning of the Carboniferous and the end of Devonian period. Amphibians diversify.






44. First therapsids evolve.






45. First amniotes evolve.






46. Permian mass extinction. End of Permian Period and of the Palaeozoic Era. Beginning of Triassic Period - the Mesozoic era and of the age of the dinosaurs.






47. Beginning of the Cambrian period - the Paleozoic Era and the Phanerozoic (current) Eon. End of the Ediacaran Period - the Proterozoic Eon and the Precambrian Supereon. Time since the Cambrian explosion the emergence of most forms of complex life - in






48. First creature took a breath of air.First ray-finned fish and land scorpions.







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