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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. First jawless fishes.






2. First amniotes evolve.






3. 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.






4. First amniotes evolve.






5. First agnathan fish.






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






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






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






9. First jawless fishes.






10. First synapsids evolve.






11. First graptolites.






12. First therapsids evolve.






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






14. First cephalopods and chitons.






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. Fossilization of the Burgess Shale.






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






18. First of many modern groups - including tetrapods.






19. First synapsids evolve.






20. The evolution of the first reptiles.






21. 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.






22. First therapsids evolve.






23. First of many modern groups - including tetrapods.






24. Possible early land animals.






25. Possible early land animals.






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






27. Fossilization of the Burgess Shale.






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






29. First large sharks - ratfish and hagfish.






30. First cephalopods and chitons.






31. First crabs and ferns.






32. 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.






33. 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






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






35. First diapsids evolve.






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






37. First toothed fish and nautiloids.






38. First diapsids evolve.






39. First toothed fish and nautiloids.






40. First crabs and ferns.






41. First agnathan fish.






42. First large sharks - ratfish and hagfish.






43. The evolution of the first reptiles.






44. 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.






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






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






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






48. First graptolites.