WebFind many great new & used options and get the best deals for Huge, Polished, Arizona Petrified Wood Round at the best online prices at eBay! Free shipping for many products! Webタイプ標本は1995年に記載され、置換名 Leptosuchus gregorii が命名された 。 吻側に大型のクレストが存在していたため、より小型で制限されたクレストを持つレプトスクスの他の種との間に属レベルとの差異があると考えられ、本種は自身の独立した属へ再分類されたの …
Secrets of the Chinle Formation - National Park …
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 wood of Petrified Forest National Park See more Tetrapod biostratigraphy The Chinle Formation is entirely Late Triassic in age. Tetrapod biostratigraphy for the Chinle was first developed based on phytosaurs and aetosaurs, which in 1998 were combined into global biozones in Spencer G. Lucas 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 … 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, and Palaeoecology, v. 143, pp. 347–384. See more WebGanado, 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, … darren cherry ohio
List of archosaurs of the Chinle Formation - Wikipedia
WebIn 1869, John Wesley Powell’s epic river expedition created some of the earliest maps and geologic observations of this region, including pinpointing the confluence of the Green and Colorado rivers. ... Balanced Rock, which is visible from the White Rim Road. The unit of rock above the Moenkopi Formation is called the Chinle Formation. This ... WebNov 18, 2024 · Publication: Gregory, H.E., 1916, The Navajo country, a geographic and hydrographic reconnaissance of parts of Arizona, New Mexico, and Utah: U.S. Geological Survey Water-Supply Paper, 380, … WebThe resulting map will indicate the shape and thickness of the channel sand and also result in the construction of a paleogeographic map at the time of deposition of the Chinle Formation in this specific area. Questions 1. Describe the depositional nature of the Chinle sandstone as developed by the isopach map. 2. bison printing maidstone