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Sediment: Oncolite polished
CO Dinosaur Ridge
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Added in: december 2013
Last Modified in: december 2013
Geology site description:
West of Dinosaur Ridge are from 1877, the first major dinosaur discoveries were made. This caused quite a madness: the so-called Bone Rush. Among others, skeletons of Stegosaurus, Allosaurus, Apatosaurus and Diplodocus were found.
The finds have been made in the Morrison Formation from the Jurassic period (150 million years old) west of Denver. Dinosaur Ridge is a cuesta where were angled outcrops created a ridge in the landscape. Dinosaur Ridge is the type locality of the Morrison Formation. On the east side of the ridge deposits of the Dakota formation from the Cretaceous era are present.
At Dinosaur Ridge a short geological walk can be made along several sites, including dinosaur tracks. There are traces of Iguanodon-like animals, and also of carnivorous dinosaurs (Theropods) and crocodiles. These are from the Cretaceous period (100 million years old) from the Dakota Formation. The tracks have been found in a beach deposit.
Dinosaur Ridge is part of the Morrison Fossil Area National Natural Landmark. The non-profit organization Friends of Dinosaur Ridge helps maintain the site and provide educational programs and the Exhibit Hall. See the Website.
Do you have (more) photographs of this geology site? Please send your photographs using the Geology Site Photo form!
Dinosaur Ridge is located near Morrison, 25 miles west of Denver.Drag the map and zoom in or out for the best view of this geology site.
Other locations in the area
Society: Western Interior Paleontological Society: Denver Museum of Nature and Science
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