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First Life On Earth (Sea Creatures (Green Algae (Sponges (Sea Squirts)),…

- - - - Sea Squirts
  - - - Armoured Fish
        
        Sharks
- - - - Cycads
    - - Liverworts
        
        Protusts
        
        Ferns
        
        Conifers
        
        Horsetails
        
        Poison Ivy
- - - - Scorpions
- - - - Grasshopers