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






2. First agnathan fish.






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. First large sharks - ratfish and hagfish.






5. First jawless fishes.






6. The evolution of the first reptiles.






7. 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






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






9. Possible early land animals.






10. First amniotes evolve.






11. Possible early land animals.






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






13. First cephalopods and chitons.






14. First jawless fishes.






15. First agnathan fish.






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






17. First graptolites.






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






19. First therapsids evolve.






20. 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.






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






22. Fossilization of the Burgess Shale.






23. First toothed fish and nautiloids.






24. First large sharks - ratfish and hagfish.






25. First of many modern groups - including tetrapods.






26. First graptolites.






27. 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.






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






29. First diapsids evolve.






30. First toothed fish and nautiloids.






31. First synapsids evolve.






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






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






34. The evolution of the first reptiles.






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






36. First crabs and ferns.






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






38. First therapsids evolve.






39. First of many modern groups - including tetrapods.






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






41. Fossilization of the Burgess Shale.






42. First diapsids evolve.






43. 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.






44. First amniotes evolve.






45. 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






46. First synapsids evolve.






47. First cephalopods and chitons.






48. First crabs and ferns.