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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 of many modern groups - including tetrapods.






2. Fossilization of the Burgess Shale.






3. First synapsids evolve.






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






5. First jawless fishes.






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






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






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. Possible early land animals.






10. First agnathan fish.






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






12. First jawless fishes.






13. First large sharks - ratfish and hagfish.






14. 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






15. Fossilization of the Burgess Shale.






16. 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.






17. 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.






18. First crabs and ferns.






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






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






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






22. First diapsids evolve.






23. First toothed fish and nautiloids.






24. First toothed fish and nautiloids.






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






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






27. First therapsids evolve.






28. 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.






29. The evolution of the first reptiles.






30. First graptolites.






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






32. First amniotes evolve.






33. First agnathan fish.






34. First cephalopods and chitons.






35. First large sharks - ratfish and hagfish.






36. First of many modern groups - including tetrapods.






37. First graptolites.






38. First diapsids evolve.






39. First therapsids evolve.






40. First amniotes evolve.






41. First crabs and ferns.






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






43. 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.






44. The evolution of the first reptiles.






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






46. Possible early land animals.






47. First synapsids evolve.






48. First cephalopods and chitons.