Please enable JavaScript.

Coggle requires JavaScript to display documents.

Precambrian Era (Paleozoic Era (Devonian period image_7730e-Parmastega…

- - - - animals with hard body parts were common
        
        more fossils
    - - fish without jaws(kinda but not really fish)
      - lived in oceans
        
        no life on land yet
      - first Paleozoic period
  - - - shortest period
      - third period
    - - didn't look like trees, grass, or flowers
      - large mats of allgene
        
        looked like moss or mold
    - - sharks were common
      - Jawfishes
  - - - new types of fishes began to appear
      - Dunkleosteus
    - - reptiles
        
        360 mya
      - less than 2 feet
  - - - 60% percent of marine life
  - - - produced coal
        
        it was through out northern Europe, Asia, and Midwestern and eastern North America
      - life
        
        plants
        
        represents plants today
        
        fossils
        
        4 leg creatures
        
        reptile looking
        
        Hylonomus
        
        Tetrapod
      - water flooded the continents
        
        sea was dominated by brachiopods
    - - late Paleozoic Era
  - - - life
        
        Guadalupian
        
        Cisuralian
        
        Lopingian
      - acid rain following a massive release of volcanic gases caused the end of the era
        
        70% of land life died
        
        96% of sea life died
      - 299-251 mya
- - - - created a lot of heat
        
        No life could've survive because of this
- - - - life still couldn't survive though
        
        no oxygen
        
        gases like methane and ammonia could've killed you
      - Modern bacteria made up of 1 cell
        
        Ate minerals
        
        Didn't leave any fossils
        
        appeared 3.8 bya
      - earliest fossils appeared around 3.5 bya
        
        may have been the first living things to get energy from the sun
        
        they were called cyanobacteria
        
        first eukaryotes appeared around 1.8 bya
        
        weren't plants nor animals
        
        Single cells