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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. Fossilization of the Burgess Shale.






3. First amniotes evolve.






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






5. First therapsids evolve.






6. First jawless fishes.






7. First crabs and ferns.






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






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






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






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






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






13. First cephalopods and chitons.






14. Possible early land animals.






15. First of many modern groups - including tetrapods.






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






17. First graptolites.






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






19. Possible early land animals.






20. First agnathan fish.






21. First amniotes evolve.






22. First diapsids evolve.






23. First large sharks - ratfish and hagfish.






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






25. First toothed fish and nautiloids.






26. First large sharks - ratfish and hagfish.






27. First synapsids evolve.






28. 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.






29. First agnathan fish.






30. First diapsids evolve.






31. First graptolites.






32. 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






33. 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.






34. 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.






35. First therapsids evolve.






36. Fossilization of the Burgess Shale.






37. First crabs and ferns.






38. First of many modern groups - including tetrapods.






39. The evolution of the first reptiles.






40. First synapsids evolve.






41. The evolution of the first reptiles.






42. 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






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






44. First toothed fish and nautiloids.






45. 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.






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






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






48. First cephalopods and chitons.