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  2. Fossil Butte National Monument - Wikipedia

    en.wikipedia.org/wiki/Fossil_Butte_National_Monument

    The Green River Lake System contained three ancient lakes, Fossil Lake, Lake Gosiute, and Lake Uinta. These lakes covered parts of southwest Wyoming, northeast Utah and northwestern Colorado. Fossil Butte is a remnant of the deposits from Fossil Lake. Fossil Lake was 40 to 50 miles (64 to 80 km) long from north to south and 20 miles (32 km) wide.

  3. Green River Formation - Wikipedia

    en.wikipedia.org/wiki/Green_River_Formation

    Within the Green River Formation of southwest Wyoming in the area known as Fossil Lake, two distinct zones of very fine-grained lime muds are particularly noted for preserving a variety of complete and detailed fossils. These layers are an Eocene Lagerstätte, a rare place where conditions were right for a rich accumulation of undisturbed fossils

  4. Paleobiota of the Green River Formation - Wikipedia

    en.wikipedia.org/wiki/Paleobiota_of_the_Green...

    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).

  5. Paleontology in Wyoming - Wikipedia

    en.wikipedia.org/wiki/Paleontology_in_Wyoming

    Wyoming first became a hotspot for dinosaur research in the 1870s with the discovery of the dinosaurs preserved in the Morrison Formation. By the early 20th century, hundreds of tons of dinosaur fossils had been excavated from Wyoming. The Eocene fish Knightia is the Wyoming state fossil. Triceratops is the state dinosaur of Wyoming.

  6. Afairiguana - Wikipedia

    en.wikipedia.org/wiki/Afairiguana

    The lake sediments include a volcanic ash dating to 51.66 million years ago, during the Early Eocene. [2] The Warfield Springs locality may have been part of a delta system. [ 1 ] Fossils are abundant in the rocks of Fossil Lake, and illustrate a diverse assemblage of plants, bivalves, snails, crustaceans, insects, rays , bony fish, salamanders ...

  7. Bahndwivici - Wikipedia

    en.wikipedia.org/wiki/Bahndwivici

    The lake sediments include a volcanic ash dating to 51.66 million years ago, during the Early Eocene. [2] Fossils are abundant in the rocks of Fossil Lake, and illustrate a diverse assemblage of plants, bivalves, snails, crustaceans, insects, rays, bony fish, salamanders, turtles, lizards, snakes, crocodilians, birds, and mammals. [3] [4] [5 ...

  8. Como Bluff - Wikipedia

    en.wikipedia.org/wiki/Como_Bluff

    In addition to the major significance of dinosaur discoveries at Como Bluff, the site has also been the source of significant early mammal fossils. In early 1878, Marsh was ecstatic to find that one of his men had uncovered a fossil from a Jurassic mammal. Within a year, the historic Quarry 9 at Como was discovered, producing an astounding 250 ...

  9. Haddenham Cabin - Wikipedia

    en.wikipedia.org/wiki/Haddenham_Cabin

    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.