fossils. Later in the early Triassic, fossil-rich to muddy limey ooze with small amounts of silt and sand were laid down as a short-lived arm of the ocean covered the region. This created the locally 70 to 140 foot (21 to 43 m) thick yellowish-colored Sinbad Limestone member of the Moenkopi. Some of the fossils found in this layer include the brachiopod genus Lingula and the ammonite genus Meekoceras. A tidal flat briefly returned to the area after the sea retreated. This created the locally 250 to 320 foot (76 to 98 m) thick reddish-brown to chocolate colored siltstone and fine-grained sandstone of the Moenkopi's Torrey Member. Some of the finer-grained beds display ripple marks and mudcracks while the sandstone has horizontal and low-angle crossbedding. Small to large fossilized track-ways from amphibians and reptiles are found in this layer as well as casts of halite. The youngest member of the Moenkopi is the 320 to 430 foot (98 to 130 m) thick Moody Canyon Member. Moody Canyon is informally sub-divided into two units: a lower slope-forming 200 to 300 foot (60 to 90 m) thick unit of reddish-brown siltstone and an upper cliff-forming 120 to 130 foot (37 to 40 m) thick unit of reddish-orange siltstone. About 30 to 40% of the stone in the upper unit is ripple-laminated while the lower unit is structureless to horizontally laminated. Good exposures of the ripple-laminated upper unit are found on the lower part of Egyptian Temple. Chinle Formation (Triassic) A complex, relatively high velocity and likely braided stream system covered most of southern Utah in the Late Triassic. Various members of the resulting Chinle Formation are found over much of the Colorado Plateaus. Logs, sand, mud and wind-transported volcanic ash from distant eruptions were mixed by streams as they migrated over a subsiding basin to form the Chinle. Uranium salts accumulated in this formation in economically extractable quantities and petrified wood was formed (petrification was probably aided by the presence of volcanic ash). Chinle members represented in the Capitol Reef area are (from oldest to youngest): Shinarump Member, Monitor Butte Member, Petrified Forest Member, and Owl Rock Member. Together they form the purple and orange rounded slopes and hills that are occasionally above white cliffs along the Waterpocket Fold's west face. Discontinuous beds of sediment were deposited in broad channels eroded into the Moenkopi, creating the locally 0 to 90 foot (0