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THE DEVONIAN

THE DEVONIAN. Life in the Devonian Sponges with glass skeleton. Hydnoceras left Hindia above. THE DEVONIAN. Life in the Devonian Sponges and tabulate coral reefs. THE DEVONIAN. Life in the Devonian Devonian corals. Rugose Corals. Petoskey Stone Tabulate coral

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THE DEVONIAN

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  1. THE DEVONIAN Life in the Devonian Sponges with glass skeleton Hydnoceras left Hindia above

  2. THE DEVONIAN Life in the Devonian Sponges and tabulate coral reefs

  3. THE DEVONIAN Life in the Devonian Devonian corals Rugose Corals Petoskey Stone Tabulate coral State fossil of Michigan

  4. THE DEVONIAN Life in the Devonian Spiriferid brachiopods

  5. THE DEVONIAN Life in the Devonian Goniatite cephalopods Suture pattern more complex than Nautiloid

  6. THE DEVONIAN Life in the Devonian Fish Placoderms expanded rapidly in Devonian Dunkleosteus Arthrodires - carnivorous

  7. THE DEVONIAN Life in the Devonian Fish Placoderms expanded rapidly in Devonian Antiarchs – mud-grubbers Pterichthyoides above Bothriolepis right

  8. THE DEVONIAN Life in the Devonian Fish Chondrichthyan fish – cartilagenous fish Cladoselache

  9. THE DEVONIAN Life in the Devonian Fish Osteichthyan fish – bony or ray-finned fish Cheirolepis

  10. THE DEVONIAN Life in the Devonian Fish Osteichthyan fish – lobe-finned fish Led to tetrapods Dipterus

  11. THE DEVONIAN Life in the Devonian Eurypterids Eurypterus remipes

  12. THE DEVONIAN Aglaophyton left Rhynia center Horneophyton right Life in the Devonian Plants

  13. THE DEVONIAN Life in the Devonian Plants Lycopsids Pteridophytes (seed ferns) Sphenopsids (Calamites)

  14. THE DEVONIAN Life in the Devonian Plants

  15. THE DEVONIAN Life in the Devonian Plants

  16. THE MISSISSIPPIAN The Age of Crinoids Mississippian named by Alexander Winchell in 1870 Named for carbonate rocks deposited in the Upper Mississippi River valley Lower Carboniferous in Europe and Canada

  17. THE MISSISSIPPIAN

  18. THE MISSISSIPPIAN The Age of Crinoids Acadia highlands reduced Decrease in muddy sediments Paleozoic flooding by epeiric seas

  19. THE MISSISSIPPIAN The Age of Crinoids

  20. THE MISSISSIPPIAN Mississippian Tectonics

  21. THE MISSISSIPPIAN Mississippian Tectonics

  22. THE MISSISSIPPIAN The Age of Crinoids Acadia highlands reduced Decrease in muddy sediments Paleozoic flooding by epeiric seas

  23. THE MISSISSIPPIAN The Age of Crinoids Crinoids abundant Ooids abundant Clear, shallow marine water Salinity higher than normal Mississippian Lime Bank

  24. THE MISSISSIPPIAN The Age of Crinoids Late Mississippian the Kaskaskia sea retreated

  25. THE MISSISSIPPIAN The Age of Crinoids Late Mississippian the Kaskaskia sea retreated Detrital muds and limestones formed. Petroleum reservoirs Nonmarine shales and sandstones from erosion of Acadian highlands

  26. THE MISSISSIPPIAN The Age of Crinoids Erosion of Acadian highland produced Pocono Ss. Forms resistant ridges of the Pocono Mtns. Forms third clastic wedge

  27. THE MISSISSIPPIAN The Age of Crinoids Erosion of Acadian highland produced Pocono Ss.

  28. THE MISSISSIPPIAN The Age of Crinoids Life in the Mississippian Rugose corals common

  29. THE MISSISSIPPIAN The Age of Crinoids Life in the Mississippian Archimedes common bryozoan

  30. THE MISSISSIPPIAN The Age of Crinoids Life in the Mississippian Bivalves uncommon Goniatite cephalopods Graptolites go extinct

  31. THE MISSISSIPPIAN The Age of Crinoids Life in the Mississippian Crinoids abundant

  32. THE MISSISSIPPIAN The Age of Crinoids Life in the Mississippian Insects become abundant Forests include Seed ferns (Pteridospermae) Lycopsids Sphenopsids

  33. THE PENNSYLVANIAN The Age of Coal Swamps Pennsylvanian named by Henry S. Williams in 1891 Named for coal-bearing rocks deposited in Pennsylvanian Upper Carboniferous in Europe and Canada

  34. THE PENNSYLVANIAN

  35. THE PENNSYLVANIAN The Age of Coal Swamps

  36. THE PENNSYLVANIAN Orogenic Events Hercynian Orogeny

  37. THE PENNSYLVANIAN Orogenic Events Alleghenian Orogeny

  38. THE PENNSYLVANIAN The Age of Coal Swamps Alleghenian Orogeny

  39. THE PENNSYLVANIAN Orogenic Events Alleghenian Orogeny Begins formation of Pangaea Laurentia and Baltica collide to form LAURASIA Laurasia and Gondwana collide to form PANGAEA

  40. THE PENNSYLVANIAN Orogenic Events Alleghenian Orogeny

  41. THE PENNSYLVANIAN Orogenic Events Alleghenian Orogeny

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