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The Kayenta Formation is a geological formation in the Glen Canyon Group that is spread across the Colorado Plateau province of the United States, including northern Arizona, northwest Colorado, Nevada, and Utah. Traditionally has been suggested as Sinemurian -Pliensbachian, but more recent dating of detrital zircons has yielded a depositional ...
Navajo Sandstone. The Navajo Sandstone is a geological formation in the Glen Canyon Group that is spread across the U.S. states of southern Nevada, northern Arizona, northwest Colorado, and Utah as part of the Colorado Plateau province of the United States. [2]
The Kayenta Formation is a stratigraphic unit within the Triassic-Jurassic Glen Canyon Group, which crops out across the Colorado Plateau. Despite extensive outcrop of the "typical facies" of the Kayenta Formation in Utah , Colorado , and northern Arizona, vertebrate fossils are rare in these regions.
Dilophosaurus is known from the Kayenta Formation, which dates to the Sinemurian-Toarcian stages of the Early Jurassic, approximately 196–186 million years ago (187–190 mya has also been suggested, and the age of the Kayenta is considered complex).
Kayentatherium. Kayentatherium is an extinct genus of tritylodontid cynodonts that lived during the Early Jurassic. It is one of two tritylodonts from the Kayenta Formation of northern Arizona, United States. Kayentatherium means "Kayenta Beast", and is named for the geological formation in which it was found, the Kayenta Formation.
The next member in the Moenave Formation is the thin-bedded Whitmore Point, which is made of mudstone and shale. [11] The lower red cliffs visible from the Zion Human History Museum (until 2000 the Zion Canyon Visitor Center) are accessible examples of this formation. [3] Kayenta Formation
Fossilized footprints of dinosaurs and the crocodile-like tritylodonts can be found in this 350 foot (107 m) thick ledgy-slope forming formation, called the Kayenta. [7] The Kayenta weathers into three units; a lower ledge and middle cliff that are dominated by cross-bedded sandstone and an upper slope that has relatively more siltstone.
The Kayenta Formation is part of the Glen Canyon Group that includes formations not only in northern Arizona but also parts of southeastern Utah, western Colorado, and northwestern New Mexico. The formation was primarily deposited by rivers, with the silty facies created by the slower, more sluggish part of the river system.