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First Life (Bacteria (Protists (Sponge (Sea Squirts (Flatworm (Segmented…

- - - - Mosses
        
        Green Algae
        
        Ferns
        
        Liverworts
        
        Ginkgoes
        
        Horsetails
        
        Conifers
        
        Cycads
        
        Flowering Plants
  - - - Sea Squirts
        
        Sea Star
        
        Flatworm
        
        Jawless Fish
        
        Segmented Worms
        
        Millipede
        
        Frog
        
        Reptiles
        
        Birds
        
        Mollusks
        
        Crabs
        
        Scorpions
        
        Spider
        
        Ticks
        
        Grasshoppers
    - - Armored Fish
        
        Sharks
        
        Bony Fish
        
        Mammals
        
        Humans