James St. John:
Entrada Sandstone (Middle Jurassic) (Goblin Valley, southeast-central Utah, USA) 1
James St. John:
Entrada Sandstone (Middle Jurassic) (Goblin Valley, southeast-central Utah, USA) 2
James St. John:
Curled mudcracks (Goblin Valley, Utah, USA) 1
James St. John:
Curled mudcracks (Goblin Valley, Utah, USA) 2
James St. John:
Curled mudcracks (Goblin Valley, Utah, USA) 3
James St. John:
Curled mudcracks (Goblin Valley, Utah, USA) 4
James St. John:
Curled mudcracks (Goblin Valley, Utah, USA) 5
James St. John:
Curled mudcracks (Goblin Valley, Utah, USA) 6
James St. John:
Wind rippled sand surface (Goblin Valley, Utah, USA)
James St. John:
Raindrop imprints in modern sediments (Goblin Valley, Utah, USA) 1
James St. John:
Raindrop imprints in modern sediments (Goblin Valley, Utah, USA) 2
James St. John:
Sceloporus magister (desert spiny lizard) (Goblin Valley, Utah, USA) 1
James St. John:
Sceloporus magister (desert spiny lizard) (Goblin Valley, Utah, USA) 2
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 1
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 2
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 3
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 4
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 5
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 6
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 7
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 8
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 9
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 10
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 11
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 12
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 13
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 14
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 15
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 16
James St. John:
Entrada Sandstone (Middle Jurassic; Goblin Valley, Utah, USA) 17
