Photos of Fossils in the Grand Staircase - Escalante National Monument

Pseudotetrasauropus; a possible prosauropod dinosaur track from the Late Triassic Chinle Formation. Cast of log in the Late Cretaceous Drip Tank Member of the Straight Cliffs Formation.
Placenticeras; an ammonite from the Late Cretaceous Tropic Shale. Theropod dinosaur tracks from the top of the Middle Jurassic Entrada Formation.
Araucarian conifer branch from the Late Triassic Chinle Formation. A string of tail vertebrae from a hadrosaurid or duck-billed dinosaur in the Late Creataceous Kaiparowits Formation.

Left: Theropod dinosaur under-tracks from the top of the Middle Jurassic Entrada Formation.

Right: Sauropod dinosaur tracks showing a rare tail drag from the top of the Middle Jurassic Entrada Formation.
Dept of Natural Resources Dept of Natural Resources