Narrower Terms (15)

• Arapien Shale (Utah)
• Green River Formation
• Guilmette Formation (Nev. and Utah)
• Honaker Trail Formation
• Lake Point Limestone (Utah)
• North Horn Formation (Utah)
• Paradox Formation
• Pine Hollow Formation (Utah)
• Roberts Mountains Formation (Nev. and Utah)
• Steamboat Mountain Formation (Utah)
• Straight Cliffs Formation (Utah)
• Wanakah Formation
• West Canyon Limestone (Utah)
• White Rim Sandstone (Utah)
• Williams Fork Formation (Colo. and Utah)