Across
- 4. The ____ Epoch is the last epoch of the Paleogene Period.
- 8. The Oglicene Epoch is subdivided into the ____ and the Chattian.
- 10. One of the biggest animals in the Cambrian Period is the ____.
- 11. How many Epochs is the Quaternary divided into?
- 12. Our current Epoch
- 15. A mass ____ took place in the Holocene Epoch because of humans.
- 16. The ____ Epoch is split into 3 sub-epochs.
- 19. ____ percent of Earth's surface was covered in ice.
- 20. The earth went through many important changes during the ____ Period.
- 21. The ____ tree became present in the Eocene Epoch.
- 23. During the Miocene Epoch, ____ and Asia collide.
- 24. Animals like the ____ became bigger as they moved into larger spaces.
- 29. ____ came from the Greek word for old or older.
- 31. During the Eocene Epoch, ____ became the dominant land animals.
- 32. North America and ____ were the only continents in the Pennsylvanian Period.
- 35. Hominids began to evolve in the ____ Epoch.
- 37. Up to ____ marine species went extinct in the Triassic Period.
- 41. The ____ was the largest marine animal in the Devonian Period.
- 43. The ____ Period is the longest period of the Phanerozoic.
- 44. ____ marine organisms like nautiloids and brachiopods existed in the Permian Period.
- 46. Unfortunately, the T-Rex wasn't in the ____ Period.
- 47. Climate change and rising sea levels caused the ____ Extinction.
- 49. The sea levels during the Miocene Epoch dropped ____ meters due to glaciation.
- 52. The Ordovician Period was defined by Charles ____ in 1879.
- 53. The oceans became more ____ during the Paleocene Epoch.
- 54. The name Cretaceous comes from the Latin word for ____.
- 55. The ____ Period is mostly known for the diverse marine invertebrates.
- 56. An ice age occurred during the ____ Period.
- 57. The Pleistocene epoch is the ____ epoch of the Quaternary Period.
- 58. The ____ National Park was formed during the Precambrian Period.
Down
- 1. The Jurrasic Period ended when the ____ meteor hit the earth.
- 2. The supercontinent ____ began to drift apart in the Jurrasic Period.
- 3. The ____ shark lived during the Pliocene Epoch.
- 5. The first ____ appeared during the Cambrian Period.
- 6. In the Precambrian Period, an ____ was formed around Earth.
- 7. The most formidable animal in the Devonian Period is the armored ____.
- 9. The Oligocene Epoch is the third epoch of the ____ Era.
- 13. During the ____ Period, the days were only 22 hours long.
- 14. Common ____ from the Mississippian Period include clams and snails.
- 17. The Quarternary period is in the _____ Era.
- 18. The ____ is one of the two most recent Epochs.
- 19. ____ were first a thing in the Paleogene Period.
- 22. The ____ Sea was a flat grassland in the Pliocene Epoch.
- 25. Nearly all ____ species died in an extinction event during the Permian Period.
- 26. Evolution of ____ plants brought true forests to the Permian Period.
- 27. The ____ Period is the first time period in the Paleozoic Era.
- 28. Current time period.
- 30. The Paleogene Period lasted ____ million years.
- 33. Giant ground ____ were around during the Paleogene Period.
- 34. The first ____ began to fly up in the sky in the Triassic Period.
- 36. The country of South ____ was an island during the Paleocene Epoch.
- 38. Shallow seas covered North America in the ____ Period.
- 39. Dinosaurs roamed ____, even with the long, cold nights.
- 40. In the Silurian Period, ____ plants became more common.
- 42. Temperatures in the Permian Period reached up to 165 degrees ____.
- 45. The Holocene Epoch is also known as the _____.
- 48. The ____ Period goes back to the beginning of the earth's life.
- 50. Some of the more common marine invertebrates in the Ordovician Period include graptolites and ____.
- 51. The Silurian Period contained the ____, which is the oldest known plant.
- 55. The ____ Mountains were formed during the Mississippian Period.