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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 cephalopods and chitons.






2. First amniotes evolve.






3. The evolution of the first reptiles.






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






5. First jawless fishes.






6. 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.






7. First crabs and ferns.






8. 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






9. First agnathan fish.






10. 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






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






12. First of many modern groups - including tetrapods.






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






14. First synapsids evolve.






15. First therapsids evolve.






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






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






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






19. 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.






20. Possible early land animals.






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






22. First graptolites.






23. First amniotes evolve.






24. The evolution of the first reptiles.






25. First large sharks - ratfish and hagfish.






26. First diapsids evolve.






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






28. First diapsids evolve.






29. First cephalopods and chitons.






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






31. First agnathan fish.






32. Fossilization of the Burgess Shale.






33. Fossilization of the Burgess Shale.






34. First of many modern groups - including tetrapods.






35. First crabs and ferns.






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






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






38. First graptolites.






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






40. Possible early land animals.






41. 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.






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. First jawless fishes.






44. First therapsids evolve.






45. First large sharks - ratfish and hagfish.






46. First toothed fish and nautiloids.






47. First toothed fish and nautiloids.






48. First synapsids evolve.