WebThese sediments, plant debris, and volcanic ash became part of a rock unit known today as the Chinle Formation. In the millions of years after the Chinle Formation was deposited, the area was uplifted and the rocks … WebThe Chinle Formation is an extensive geological unit in the southwestern United States, preserving a very diverse fauna of Late Triassic (primarily Norian -age) animals and plants. This is a list of fossilized organisms recovered from the formation. Amniotes [ edit] Archosauromorphs [ edit] Crurotarsans [ edit]

Chinle Formation, northern Arizona AZGS

The Chinle Formation is an Upper Triassic continental geological formation of fluvial, lacustrine, and palustrine to eolian deposits spread across the U.S. states of Nevada, Utah, northern Arizona, western New Mexico, and western Colorado. In New Mexico, it is often raised to the status of a geological group, … See more While colorful Triassic sediments of the Colorado Plateau have been investigated since the 19th century, the Chinle Formation was only formally named and described by Herbert E. Gregory in 1917. It was named for See more The Chinle Formation is fossiliferous, with a diverse array of extinct reptile, fish, and plant fossils, including early dinosaurs and the famous petrified … See more Tetrapod biostratigraphy The Chinle Formation is entirely Late Triassic in age. Tetrapod biostratigraphy for the Chinle was … See more • List of dinosaur-bearing rock formations • Paleobiota of the Chinle Formation • Triassic land vertebrate faunachrons See more The formation members and their thicknesses are highly variable across the Chinle. Arizona and western New Mexico Some of the most … See more Geologic Province: • Black Mesa Basin* • Great Basin province* • Green River Basin* • Las Vegas-Raton Basin* (disputed ) • Orogrande Basin • See more • Lucas, S.G. (1998). "Global Triassic tetrapod biostratigraphy and biochronology". Palaeogeography, Palaeoclimatology, … See more WebThe Chinle formation is exposed in the Painted Desert of northern Arizona. The Chinle's colorful mudstones, and less abundant lenses of sandstone and conglomerate, were deposited by a large river system. This unit … ophthalmologist education and training

USGS: Geological Survey Professional Paper 132—A (Sedimentary Rocks)

WebJan 7, 2011 · Chinle Formation (mostly shale) rises above brown cliffs of Moenkopi Formation in Capitol Reef National Park. Petrified logs in the Chinle Formation in Petrified Forest National Park. Age: Triassic, Late* … WebThe dark red rocks of the Moenkopi Formation were deposited during the Triassic period. The erosion of sandstone and siltstone has exposed fantastic formations, including Balanced Rock, which is visible from the White Rim Road. The unit of rock above the Moenkopi Formation is called the Chinle Formation. Web371 of 564. Ganado, Arizona Badland erosion exposes colorful shales in the Chinle Formation, north of Ganado, Arizona. The geology of the Little Colorado River Valley in eastern Arizona, including Petrified Forest Nationa Park, is characterized by widespread exposures of Triassic and Jurassic terrestrial sedimentary rocks. ophthalmologist education path