Organ Rock Formation Organ Rock Formation The Organ Rock Formation or Organ Rock Shale is a formation within the late Pennsylvanian to early Permian Cutler Group and is deposited across southeastern Utah, northwestern New Mexico, and northeastern Arizona. This formation notably outcrops around Canyonlands National Park, Natural Bridges National Monument, and Monument Valley. The age of the Organ Rock is constrained to the latter half of the Cisuralian Epoch by age dates from overlying and underlying formations. Important early terrestrial vertebrate fossils have been recovered from this formation in northern Arizona, southern Utah, and northern New Mexico. These include the iconic Permian terrestrial
Flaming Cliffs refers to the red or orange color of the sandstone cliffs (especially at a sunset). The following are dinosaur fossils that have been found in the Flaming Cliffs. Theropods: Ornithischians Flaming Cliffs The Flaming Cliffs site, also known as Bayanzag, sometimes Bain-Dzak, ( "rich in saxaul"), with the alternative Mongolian name of ("red cliffs"), is a region of the Gobi Desert in the Ömnögovi Province of Mongolia, in which important fossil finds have been made. It was given this name by American paleontologist Roy Chapman Andrews, who visited in the 1920s. The area is most famous for yielding the first