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  - Permian
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    - Ecca Group (4)
    - Glorieta Sandstone (2)
    - Guadalupian
      - Brushy Canyon Formation (1)
      - Cherry Canyon Formation (1)
      - Delaware Mountain Group (1)
      - Grayburg Formation (1)
    - Lower Permian
      - Cherry Canyon Formation (1)
      - Cisuralian
        
        Kungurian (1)
      - Leman Sandstone Formation (3)
      - Leonardian
        
        Bone Spring Limestone (2)
        
        Clear Fork Group (4)
      - Qixia Formation (1)
      - Wolfcampian (6)
    - Maokou Formation (1)
    - Rotliegendes (7)
    - Shihezi Formation (1)
    - Unayzah Formation (1)
    - Upper Permian
      - Lopingian (1)
      - Permian-Triassic boundary (1)
      - Salado Formation (1)
      - Zechstein (4)
    - Vryheid Formation (1)
    - Wellington Formation (1)
    - Whitehill Formation (1)
    - Yates Formation (1)
  - Silurian
    - Lower Silurian
      - Llandovery
        
        Rhuddanian (1)
      - Tuscarora Formation (1)
    - Middle Silurian
      - Clinton Group (1)
      - Racine Dolomite (1)
    - Niagaran (6)
  - upper Paleozoic
    - Bakken Formation (6)
    - Dwyka Formation (2)
  - Woodford Shale (5)
- Phanerozoic (3)
- Precambrian
  - Archean
    - Mesoarchean (1)
    - Neoarchean (1)
    - Paleoarchean (1)
  - Onverwacht Group (1)
  - Stillwater Complex (1)
  - upper Precambrian
    - Proterozoic
      - Great Oxidation Event (1)
      - Mesoproterozoic (1)
      - Neoproterozoic
        
        Brioverian (1)
        
        Ediacaran (1)
        
        Riphean (2)
        
        Vendian (4)
      - Paleoproterozoic (6)
      - Sinian (1)
  - Ventersdorp Supergroup (2)
igneous rocks
- igneous rocks
  - kimberlite (6)
  - picrite (2)
  - plutonic rocks
    - anorthosite (2)
    - diabase (3)
    - diorites
      - quartz diorites (1)
    - gabbros
      - alkali gabbros
        
        teschenite (1)
      - norite (1)
      - troctolite (1)
    - granites
      - granite porphyry (1)
      - I-type granites (1)
      - leucogranite (1)
    - granodiorites (2)
    - pegmatite (5)
    - syenites
      - bostonite (1)
    - ultramafics
      - peridotites
        
        dunite (1)
        
        harzburgite (2)
        
        lherzolite (2)
      - pyroxenite
        
        websterite (1)
  - porphyry (2)
  - volcanic rocks
    - andesites (3)
    - basalts
      - alkali basalts (1)
      - flood basalts (2)
      - mid-ocean ridge basalts (1)
      - shoshonite (1)
      - trap rocks (1)
    - dacites (2)
    - glasses
      - volcanic glass (2)
    - komatiite (3)
    - pyroclastics
      - hyaloclastite (2)
    - rhyolites
      - quartz porphyry (1)
metamorphic rocks