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Fossil Butte National Monument is a United States National Monument managed by the National Park Service, located 15 miles (24 km) west of Kemmerer, Wyoming, United States. It centers on an assemblage of Eocene Epoch (56 to 34 million years ago) animal and plant fossils associated with Fossil Lake —the smallest lake of the three great lakes ...
Heliobatis radians (stingray), Green River Formation, Fossil Butte National Monument. The Green River Formation is an Eocene geologic formation that records the sedimentation in a group of intermountain lakes in three basins along the present-day Green River in Colorado, Wyoming, and Utah. The sediments are deposited in very fine layers, a dark ...
In the Fossil Basin at the Fossil Butte National Monument, Wyoming, the Wasatch Formation consists primarily of brightly variegated mudstones with subordinate interbedded siltstones, sandstones, and conglomerates and represents deposition on an intermontane alluvial plain. [22]
The Green River Formation is a geological formation located in the Intermountain West of the United States, in the states of Colorado, Utah, and Wyoming.It comprises sediments deposited during the Early Eocene in a series of large freshwater lakes: Lake Gosiute, Lake Uinta, and Fossil Lake (the last containing Fossil Butte National Monument).
Fossil Butte. Wyoming: NPS: October 23, 1972: 8,198 acres (33.2 km 2) 21,349 Fossil Butte preserves the 50-million-year-old Green River lake beds, the best paleontological record of tertiary aquatic communities in North America. Fossils including fish, alligators, bats, turtles, dog-sized horses, insects, and many other species of plants and ...
People also can visit a research quarry to learn about paleontology at the nearby Fossil Butte National Monument. If a child goes home inspired after finding a fossil or seeing one on display at a ...
The Haddenham Cabin, located in Fossil Butte National Monument near Kemmerer, Wyoming, is a historic cabin that is listed on the National Register of Historic Places (NRHP). It is an A-frame cabin that was designed and built c. 1918 by David C. Haddenham.
Afairiguana is based on FMNH PR 2379, a skeleton collected from the Warfield Springs locality of the Fossil Butte Member of the Green River Formation. It was described in 2007 by Jack Conrad, Olivier Rieppel, and Lance Grande. The type species is A. avius.