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 … WebDownload scientific diagram Stratigraphic column of the Chinle Formation and map showing placement of PFV 089 and the 'Green Layer Locality', showing the approximate horizon of Trilophosaurus ...
Chinle Formation, northern Arizona AZGS
WebJul 6, 2015 · During Chinle time, no flowering plants existed; instead, club mosses and ferns grew in freshwater marshes, while horsetails and cycads occupied floodplains. The Chinle Formation's 220 million-year old … WebShow map of Texas. The Cooper Canyon Formation is a geological formation of Norian age in Texas and New Mexico. [1] [2] Type area of the formation is situated in Garza County, Texas. An equivalent formation in eastern New Mexico is named Bull Canyon Formation. Some researchers argue that the latter name should be abandoned. diabetes med recommendations
Colorado River Basin Stratigraphy - MiraCosta College
WebChinle Formation (Late Triassic) at surface, ... Includes a small amount of andesite, dacite, and rhyolite. Rocks of this map unit are largely restricted to six areas widely distributed in Arizona: San Francisco and Uinkaret volcanic fields in northern Arizona (0-4 Ma); Springerville (0-4 Ma) and San Carlos (0-2 Ma) volcanic fields in east ... 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 cindy chilcote