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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 therapsids evolve.






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






3. First diapsids evolve.






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






5. First diapsids evolve.






6. First large sharks - ratfish and hagfish.






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. First cephalopods and chitons.






9. 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.






10. Fossilization of the Burgess Shale.






11. First graptolites.






12. First amniotes evolve.






13. First toothed fish and nautiloids.






14. First agnathan fish.






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






16. The evolution of the first reptiles.






17. First amniotes evolve.






18. First jawless fishes.






19. First jawless fishes.






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






21. The evolution of the first reptiles.






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






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






25. First large sharks - ratfish and hagfish.






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






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






28. First agnathan fish.






29. First of many modern groups - including tetrapods.






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






31. First cephalopods and chitons.






32. First synapsids evolve.






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






34. Fossilization of the Burgess Shale.






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 Carboniferous and the end of Devonian period. Amphibians diversify.






37. First of many modern groups - including tetrapods.






38. First therapsids evolve.






39. First synapsids evolve.






40. First toothed fish and nautiloids.






41. Possible early land animals.






42. First graptolites.






43. First crabs and ferns.






44. First crabs and ferns.






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. Possible early land animals.






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






48. 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.