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The Purgatoire River track site, also called the Picketwire Canyonlands tracksite, is one of the largest dinosaur tracksites in North America. [1] The site is located on public land of the Comanche National Grassland, along the Purgatoire ("Picketwire") River south of La Junta in Otero County, Colorado. In 2014 researchers published information ...
The Purgatoire River rises in the Culebra Range of the Sangre de Cristo Mountains reaching an elevation of 14,053 ft (4,283 m) at Culebra Peak.The river, formed by many upstream tributaries, flows eastwards for about 40 miles (64 km) through the mountains and foothills to Trinidad at an elevation of 6,010 ft (1,830 m) where it turns to the northeast and flows across the Great Plains through ...
When a particular site of note is listed for an extensive fossil-bearing formation, ... Purgatoire River track site: Late Jurassic: North America: US: Colorado:
Picketwire Canyon is about 400 feet (120 m) deep and contains the Purgatoire River track site, one of the largest dinosaur track-ways in the world, in the Morrison Formation. More than 1,300 tracks of Brontosaurs and Allosaurs 150 million years old are preserved in the rocks. [ 15 ]
Purgatoire River track site, Otero County. Utah. Cleveland-Lloyd Dinosaur Quarry, Utah: First excavated by geologists from the University of Utah in the late 1920s.
The Rancho del Rio site is located along the Colorado River in central Colorado. The other large tracksite is the Purgatoire Valley tracksite of the eponymous Purgatoire River in southeastern Colorado. [8] The Purgatoire Valley tracksite is 400 meters at its widest and contains four track-bearing strata.
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Purgatoire means purgatory in French. It may refer to: Purgatoire River, a river in southeastern Colorado, United States; Purgatoire Formation, a geological unit named for the river; Purgatoire River track site, a significant preservation of dinosaur trackways