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THE PERMIAN

THE PERMIAN

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THE PERMIAN

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  1. THE PERMIAN Reptiles Dimetrodon Mammal-like Reptiles

  2. THE PERMIAN Eggs Amniotic egg allowed Organisms to become terrestrial

  3. THE PERMIAN Plants Glossopteris

  4. THE PERMIAN Permian Extinction

  5. THE TRIASSIC The Break-up of Pangaea Three-fold division of rocks in Germany Named by Frederich von Alberti in 1834

  6. THE TRIASSIC

  7. THE TRIASSIC Absaroka Sea continues to retreat Triassic is very terrestrial Period

  8. THE TRIASSIC

  9. THE TRIASSIC

  10. THE TRIASSIC

  11. THE TRIASSIC

  12. THE TRIASSIC Joshua Chamberlain, left Little Round Top, Battle of Gettysburg 3 July, 1863

  13. THE TRIASSIC Chinle Formation, Petrified Forest National Park

  14. THE TRIASSIC Chinle Formation, Painted Desert

  15. THE TRIASSIC Triassic Reptiles Mammal-like

  16. THE TRIASSIC Dilophosaurus Triassic Reptiles Diversification of dinosaurs Coelophysis

  17. THE TRIASSIC First Marine Reptiles

  18. THE TRIASSIC Mammals Evolve

  19. THE JURASSIC Named for strata in Jura Mountains between France and Switzerland Named by Alexander von Humbolt in 1795 Redefined by Leopold von Buch in 1839

  20. THE JURASSIC

  21. THE JURASSIC Nevadan Orogeny

  22. THE JURASSIC Nevadan Orogeny

  23. THE JURASSIC Nevadan Orogeny Emplacement of batholiths

  24. THE JURASSIC Cordilleran Orogeny

  25. THE JURASSIC Cordilleran Orogeny

  26. THE JURASSIC Cordilleran Orogeny

  27. THE JURASSIC Cordilleran Orogeny

  28. THE JURASSIC Absaroka Sea continues to retreat Jurassic is very terrestrial Period Transgression of Zuni Sea at end of Jurassic

  29. THE JURASSIC Dinosaurs Ornithischian (Bird-hipped)

  30. THE JURASSIC Dinosaurs Ornithischian (Bird-hipped)

  31. THE JURASSIC Dinosaurs Saurichian (Lizard-hipped) Therapods Velociraptor Tyrannosaurus

  32. THE JURASSIC Dinosaurs Saurichian (Lizard-hipped) Sauropods Apatosaurus Diplodicus

  33. THE JURASSIC Birds Actually arose from LIZARD-hipped Dinosaurs Archeopteryx

  34. THE JURASSIC Angiosperms Arose in Late Jurassic

  35. THE JURASSIC Arches National Park

  36. THE JURASSIC Canyonlands National Park

  37. THE JURASSIC Colorado National Monument

  38. THE JURASSIC Colorado National Monument Morrison Formation

  39. THE JURASSIC More Morrison Formation I-70 Roadcut Morrison, CO

  40. THE CRETACEOUS The Age of Dinosaurs II Named for the latin word for chalk Named by Omalius d’Halloy in 1822

  41. THE CRETACEOUS

  42. THE CRETACEOUS Orogenic Events – Cordilleran continues

  43. THE CRETACEOUS Orogenic Events - Sevier Orogeny

  44. THE CRETACEOUS Orogenic Events - Sevier Orogeny

  45. THE CRETACEOUS Orogenic Events

  46. THE CRETACEOUS Orogenic Events – Laramide Orogeny

  47. THE CRETACEOUS Orogenic Events – Laramide Orogeny

  48. THE CRETACEOUS Cretaceous is very marine Period Transgression of Zuni Sea continues into the K

  49. THE CRETACEOUS Craton flooded for the last time

  50. THE CRETACEOUS Craton flooded for the last time Pierre Shale