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      - Gulfian
        
        Austin Group (1)
        
        Eagle Ford Formation (2)
        
        Prairie Bluff Chalk (1)
        
        Woodbine Formation (2)
      - Hell Creek Formation (1)
      - Hilliard Shale (1)
      - Horseshoe Canyon Formation (10)
      - Judith River Formation (6)
      - Kanguk Formation (2)
      - Kirtland Shale (1)
      - K-T boundary (6)
      - Lance Formation (2)
      - Lewis Shale (2)
      - Maestrichtian (17)
      - Menefee Formation (1)
      - Mesaverde Group (4)
      - Milk River Formation (3)
      - Mooreville Chalk (1)
      - Niobrara Formation (7)
      - Oldman Formation (5)
      - Pictured Cliffs Sandstone (3)
      - Pierre Shale (1)
      - Point Lookout Sandstone (3)
      - Ripley Formation (2)
      - Rock Springs Formation (1)
      - Rosario Formation (1)
      - Saint Mary River Formation (2)
      - Santonian (7)
      - Senonian (33)
      - Shannon Sandstone Member (2)
      - Sharon Springs Member (1)
      - Star Point Sandstone (1)
      - Straight Cliffs Formation (1)
      - Sussex Sandstone Member (1)
      - Tununk Member (2)
      - Turonian
        
        lower Turonian (2)
        
        middle Turonian (1)
        
        upper Turonian (1)
      - Two Medicine Formation (3)
      - Wall Creek Member (2)
    - Viking Formation (10)
  - Great Valley Sequence (1)
  - Jurassic
    - Bazhenov Formation (1)
    - Fernie Formation (1)
    - Kingak Shale (1)
    - Lower Jurassic
      - Domerian (2)
      - Dunlin Group (1)
      - Hettangian (4)
      - lower Liassic (8)
      - middle Liassic (5)
      - Pliensbachian (3)
      - Sinemurian (5)
      - Toarcian (3)
      - Triassic-Jurassic boundary (1)
      - upper Liassic (3)
    - Mic Mac Formation (1)
    - Middle Jurassic
      - Aalenian (1)
      - Bajocian
        
        Brent Group (2)
        
        Etive Formation (1)
        
        Ness Formation (1)
        
        Rannoch Formation (1)
        
        Tarbert Formation (1)
      - Bathonian (4)
      - Callovian (4)
      - Dogger (1)
    - Norphlet Formation (2)
    - Twin Creek Limestone (2)
    - Upper Jurassic
      - Arab Formation (1)
      - Buckner Formation (2)
      - Cotton Valley Group (1)
      - Haynesville Formation (3)
      - Kimmeridge Clay (1)
      - Kimmeridgian (1)
      - Oxfordian (8)
      - Portlandian (3)
      - Smackover Formation (6)
      - Sundance Formation (2)
      - Swift Formation (1)
      - Tithonian (3)
      - Volgian (1)
  - Mist Mountain Formation (1)
  - Newark Supergroup (1)
  - Nugget Sandstone (1)
  - Pucara Group (1)
  - Triassic
    - Charlie Lake Formation (5)
    - Liard Formation (1)
    - Lower Triassic
      - Dinwoody Formation (1)
      - Griesbachian (1)
      - Permian-Triassic boundary (1)
      - Scythian (1)
      - Smithian (2)
      - Spathian (1)
      - Thaynes Formation (1)
    - Middle Triassic
      - Anisian (4)
      - Doig Formation (11)
      - Ladinian (5)
      - Muschelkalk (1)
    - Montney Formation (7)
    - Shublik Formation (2)
    - Upper Triassic
      - Baldonnel Formation (1)
      - Carnian (4)
      - Keuper (1)
      - Luning Formation (1)
      - Norian (1)
      - Pardonet Formation (1)
      - Rhaetian (4)
      - Triassic-Jurassic boundary (1)
  - Vaca Muerta Formation (1)
- Paleozoic
  - Bedford Shale (1)
  - Berea Sandstone (2)