1. MESOZOIC Trilobites, ammonites and many other species go extinct Trilobites, ammonites and many other species go extinct Dinosaurs now dominate- land, air, sea Dinosaurs now dominate- land, air, sea Drier climate Drier climate

2. TRIASSIC 248 mya Beginning of small dinosaurs Beginning of small dinosaurs Primitive mammals Primitive mammals All of N. America is above sea level All of N. America is above sea level Pangaea Pangaea

3. JURASSIC 206 mya Dinosaurs continue to dominate Dinosaurs continue to dominate Apatasaurus Brachiosaurus stegosaurus Reaching larger sizes Reaching larger sizes First birds First birds Pangaea starts to split Pangaea starts to split

4. Apatosaurus- goof by US postal service

6. ARCHAEOPTERYX

7. CRETACEOUS 144-65 mya Intelligent dinosaurs (T- rex, raptors) Intelligent dinosaurs (T- rex, raptors) First flowering plants First flowering plants Carnivorous mammals Carnivorous mammals Pangaea splits up Pangaea splits up Rockies form Rockies form

8. T - REX SUE The most famous dinosaur ever! The most famous dinosaur ever!

9. First glimpse, with discoverer Sue Hendrickson August, 1990

10. All volunteers furiously dig Sue out

12. Every bone is incased in plaster

14. Finished Skull

15. Artist rendition

16. Other bones were found with Sue

17. Forearm; only two ever found from a T-Rex

18. Sue’s wishbone first one ever found in a T-Rex

19. Bones are seized May14, 1992

20. On display at the Chicago Field Museum May 17, 2000

22. Only bones not found, seen in black

25. Working paleontologist at the McDonalds Lab in the Field Museum

27. DINOSAUR EXTINCTION

28. K/T Boundary Cretaceous/Tertiary Cretaceous/Tertiary 65 mya 65 mya Separates Mesozoic from Cenozoic Separates Mesozoic from Cenozoic

29. What happened? Warm temps Warm temps 65% of species went extinct (most sea life) 65% of species went extinct (most sea life) Ammonites Ammonites foraminifera foraminifera Most sponges Most sponges Marine reptiles Marine reptiles On land nothing more than 25kg survived On land nothing more than 25kg survived

30. victims

31. Survivors LIZARDS, SNAKES, CROCODILES, TURTLES, MAMMALS, FROGS, SALAMANDERS LIZARDS, SNAKES, CROCODILES, TURTLES, MAMMALS, FROGS, SALAMANDERS

32. ASTEROID THEORY Asteroid caused climate change Asteroid caused climate change 1 st - dust blocked out sun 1 st - dust blocked out sun 2 nd - trapped in heat 2 nd - trapped in heat

33. Evidence Iridium Iridium Found plentifully in space rocks Found plentifully in space rocks

34. Evidence Shocked quartz Shocked quartz Caused by impact Caused by impact

35. Evidence Crater Crater Asteroid 10 km wide Asteroid 10 km wide Left 100km crater Left 100km crater

36. CENOZOIC 65 mya-present Mammals now dominate- Mammals now dominate- able to fill in niche left by dinosaurs able to fill in niche left by dinosaurs Epochs Epochs Further subdivided periods Further subdivided periods

37. North America East East Marine sedimentation Marine sedimentation West West Uplift created gorges Uplift created gorges Grand Canyon Volcanism Volcanism Sierra Nevadas created Sierra Nevadas created

38. Tertiary rocks

39. Tertiary

40. Tertiary 65 mya-2mya Flowering plants (angiosperms) Flowering plants (angiosperms) Mammals diversify Mammals diversify Size begins to increase Size begins to increase Brain capacity increases Brain capacity increases Specialization of teeth Specialization of teeth Specialization of limbs Specialization of limbs Birds evolve Birds evolve

41. Late Pliocene

42. QUATERNARY 2mya- present Beginning of ice ages Beginning of ice ages Caused extinction of many large mammals + Caused extinction of many large mammals + were hunted by were hunted by Homo Sapiens and Neanderthals Homo Sapiens and Neanderthals Great Lakes formed

43. Quaternary ice sheets

44. Mammoths Curved tusk Curved tusk Related to modern elephant Related to modern elephant

45. Mammoth fossils

46. Mastodons Straight tusk Straight tusk MI’s state fossil MI’s state fossil

47. Lucy LUCY

48. Oldest Hominoid Up right walking being Up right walking being 7 million years old 7 million years old

49. Lucy 3.5 my 3.5 my Bipedal hominoid Bipedal hominoid Oldest humans? Oldest humans?

50. Ardi Ardipithecus ramidus 4.4 my 4.4 my Found Oct. 2009 Found Oct. 2009 Ethiopia Ethiopia

52. resources http://universe-review.ca/R10-19-animals.htm http://universe-review.ca/R10-19-animals.htm http://universe-review.ca/R10-19-animals.htm