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Paleozoic History Timeline

Subjects : trivia, history
Instructions:
  • Answer 48 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • 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. Beginning of the Ordovician and the end of the Cambrian period.






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






3. 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.






4. 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.






5. First agnathan fish.






6. First large sharks - ratfish and hagfish.






7. Possible early land animals.






8. First synapsids evolve.






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






10. The evolution of the first reptiles.






11. First jawless fishes.






12. First diapsids evolve.






13. First amniotes evolve.






14. 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






15. 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






16. First of many modern groups - including tetrapods.






17. First amniotes evolve.






18. First of many modern groups - including tetrapods.






19. 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.






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






21. First diapsids evolve.






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






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






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






25. Fossilization of the Burgess Shale.






26. First synapsids evolve.






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






28. First therapsids evolve.






29. First agnathan fish.






30. First large sharks - ratfish and hagfish.






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






32. Possible early land animals.






33. First toothed fish and nautiloids.






34. First jawless fishes.






35. First graptolites.






36. First cephalopods and chitons.






37. The evolution of the first reptiles.






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






39. First toothed fish and nautiloids.






40. 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.






41. First therapsids evolve.






42. First graptolites.






43. First cephalopods and chitons.






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






45. Fossilization of the Burgess Shale.






46. First crabs and ferns.






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






48. First crabs and ferns.