1. Life in the Paleozoic Ocean Planet & The Great Migration Ocean Planet & The Great Migration

2. Paleozoic 543-248 Myr Early Middle Late

3. Skeletons and Shells Small Shelly Fossils (SSF’s) (Very) Late Proterozoic

4. Shells & Skeletons: Advantages of Hard Parts 1.Protection from UV - survive in shallow water 2.Prevents drying out - intertidal zone 3.Predator protection 4.Provides support - inc. size 5.Potential to build reefs Advantage to us - make better fossils!

5. Planet Ocean Early Paleozoic Ray Troll

6. Major Animal Phylum All originate in the Early Paleozoic

8. Marine Lifestyles Pelagic (“Open Water Dwellers”) Deep or Shallow Benthic (“Bottom Dwellers”)

9. Pelagic Lifestyles Plankton (“Drifters”) Nekton (“Swimmers”)

10. Benthic Lifestyles Epifaunal (“Above Ground”) Infauna (“Below Ground”)

11. Cambrian Fossils

12. Burgess Shale Ray Troll

13. “Jump” in Diversity

14. Cambrian Explosion

15. Wiwaxia

16. Hallucigenia © 2003 by Karen Carr

17. Opabinia

18. Anomalocaris

19. Pikaia (early Chordate)

20. Trilobites (Arthropods)

21. Trilobite Eye

22. Other Arthropods (Chengjiang, China)

23. Porifera (Sponges)

24. Animation

25. Sponge Spicules

26. Fossil Paleozoic Sponge

27. A Semi-Colonial Ancestor to all Animals?

28. Cnideria (Corals & Jellyfish)

29. Types

30. Corals

31. Order Tabulata (Extinct)

32. Order Rugosa (Horn Corals) (Extinct)

33. Order Scleratina (Hexacorals)

34. Bryozoans (Moss Animals)

35. Lacy Bryozoans

36. Freshwater Bryozoan

37. Bryozoan Colony First Fossils: Ordovician

38. Fossil Bryozoan

39. Graptolites

40. Dendroid

41. Graptoloid

42. Mollusks Ordovician Cephalopods Ordovician Gastropods

43. Brachiopods (Lamp Shells)

44. Annelids (Segmented Worms) Cambrian (China)

45. Echinoderms

46. What Led to the Cambrian Explosion? Hard Parts? Predators?