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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. Fossilization of the Burgess Shale.






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






3. First jawless fishes.






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






5. First toothed fish and nautiloids.






6. First of many modern groups - including tetrapods.






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






8. First synapsids evolve.






9. First amniotes evolve.






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






11. First synapsids evolve.






12. First toothed fish and nautiloids.






13. First diapsids evolve.






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






15. First cephalopods and chitons.






16. 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.






17. First of many modern groups - including tetrapods.






18. First agnathan fish.






19. First cephalopods and chitons.






20. 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






21. First amniotes evolve.






22. 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






23. Possible early land animals.






24. First therapsids evolve.






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






26. First diapsids evolve.






27. First large sharks - ratfish and hagfish.






28. The evolution of the first reptiles.






29. The evolution of the first reptiles.






30. First crabs and ferns.






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






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. First graptolites.






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






35. 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.






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






37. First large sharks - ratfish and hagfish.






38. First therapsids evolve.






39. First jawless fishes.






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






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






42. 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.






43. Fossilization of the Burgess Shale.






44. First agnathan fish.






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






46. First crabs and ferns.






47. First graptolites.






48. Possible early land animals.