Nugget Sandstone, Sandstone formation in Wyoming, US
Nugget Sandstone is a rock formation spanning multiple states, composed of sandstone layers in salmon-pink and white tones. The layers display different structures, with the lower section showing reddish hues and the upper portion appearing lighter in color.
The formation was first documented in 1907 by geologist A.C. Veatch during geographic and geological surveys in southwestern Wyoming. This early description established the scientific foundation for understanding this rock unit.
The formation received its name from Nugget Station on the Oregon Short Line in western Wyoming, marking a connection to railroad development.
Visitors can explore this formation in its natural landscape setting and clearly observe the different layers. The best access is through walkable areas or viewpoints that clearly display the visible layers and colorations.
Scientists discovered fossils of Caelestiventus hanseni here, a pterosaur representing the first diagnostic pterosaur specimen identified in North America. These finds make the formation a significant location for researching prehistoric flying animals.
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