Well, here’s the periods!
Cambrian PeriodCambrian explosion!
Ordovician Period                                  endBeginning and middle                                                ...
Coral reefSilurian Period  Stable climate  Glaciers melted  Ocean levels went up                                    Vascul...
North=dry        Devonian Period                                 South =cool,                                             ...
Carboniferous Period             Forest swampsamphibians             covered land!               Reptiles - Amniotic egg w...
Permian                                  Pangaea formed & it was                                  DRY!                    ...
triassic                               Gymnosperms                               still dominant                           ...
jurassicGymnosperm stillplentiful                           Early bird-like creatures/archaeopteryxReptiles continued to b...
cretaceous
tertiary                     Angiosperm =dominant land                     plant Mammals diversify
quaternaryHominids become more like humans 
Upcoming SlideShare
Loading in …5
×

Powerpoint for des

235 views

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
235
On SlideShare
0
From Embeds
0
Number of Embeds
10
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Powerpoint for des

  1. 1. Well, here’s the periods!
  2. 2. Cambrian PeriodCambrian explosion!
  3. 3. Ordovician Period endBeginning and middle Marine invertebrates trilobites & brachiopods Extinction (60% of invertabrates extinct due to climate change)
  4. 4. Coral reefSilurian Period Stable climate Glaciers melted Ocean levels went up Vascular plants Ancestors of spiders and centipedes
  5. 5. North=dry Devonian Period South =cool, temperate, ocean- covered Age of fishes! Increase of terrestrial animalsSeed plants like gymnosperms Tetrapods!
  6. 6. Carboniferous Period Forest swampsamphibians covered land! Reptiles - Amniotic egg was covered with a leathery/hard shell Large plants and trees
  7. 7. Permian Pangaea formed & it was DRY! Great seasonalamphibians fluctuations More prevalent prevalent Gymnosperms replaced ferns
  8. 8. triassic Gymnosperms still dominant plant LOTS OF REPTILES!
  9. 9. jurassicGymnosperm stillplentiful Early bird-like creatures/archaeopteryxReptiles continued to bedominant includingdinos
  10. 10. cretaceous
  11. 11. tertiary Angiosperm =dominant land plant Mammals diversify
  12. 12. quaternaryHominids become more like humans 

×