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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. Possible early land animals.






3. The evolution of the first reptiles.






4. First crabs and ferns.






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






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






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






9. First amniotes evolve.






10. First diapsids evolve.






11. Fossilization of the Burgess Shale.






12. First cephalopods and chitons.






13. First of many modern groups - including tetrapods.






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






15. 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.






16. First therapsids evolve.






17. 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






18. The evolution of the first reptiles.






19. First synapsids evolve.






20. First amniotes evolve.






21. First toothed fish and nautiloids.






22. First large sharks - ratfish and hagfish.






23. First large sharks - ratfish and hagfish.






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






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






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. First toothed fish and nautiloids.






29. First crabs and ferns.






30. First therapsids evolve.






31. First jawless fishes.






32. First synapsids evolve.






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






34. First diapsids evolve.






35. First graptolites.






36. Possible early land animals.






37. First jawless fishes.






38. First cephalopods and chitons.






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






40. 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.






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






42. First agnathan fish.






43. First agnathan fish.






44. Fossilization of the Burgess Shale.






45. 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.






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






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






48. First of many modern groups - including tetrapods.