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Coyote Buttes : ウィキペディア英語版 | Coyote Buttes
Coyote Buttes is a section of the Paria Canyon-Vermilion Cliffs Wilderness managed by the Bureau of Land Management (BLM), spanning extreme south-central Utah and north-central Arizona, south of US 89 halfway between Kanab, Utah and Page, Arizona. It is divided into two areas: Coyote Buttes North and Coyote Buttes South. Visiting either of the Coyote Buttes areas requires purchasing a hiking permit. The Coyote Buttes area is an exposure of cross-bedded aeolian Jurassic Navajo Sandstone.〔(Seiler, W. M., ''Jurassic Navajo sandstone of Coyote Buttes, Utah/Arizona: coloration and diagenetic history, preservation of a dinosaur trample surface, and terrestrial analogs to Mars,'' 2008, MS Thesis, The University of Utah )〕 The variable coloration of the sandstones is a result of various iron oxide pigments within the layers. A dinosaur trackway or ''trample surface'' is found in the area and provides evidence of a variety of dinosaurs.〔 The area includes dramatic swirling erosional rock formations such as The Wave. The Wave and Buckskin Gulch share the Wire Pass Trailhead on House Rock Valley Road. ==Dinosaur trackway== The dinosaur trackway within the area is a site of that has densely packed dinosaur footprints within the area. The trackway contains more than 1,000 footprints which were made approximately 190 million years ago.〔(Scientists Discover 'Dinosaur Dance Floor' ), The Washington Post, October 22, 2008〕 Tracks of three genera of ''Eubrontes, Anchisauripus'' and ''Grallator'' are present along with a Sauropodomorph that has not been identified.〔
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