File:Stegosaurus dinosaur footprints in sandstone (Morrison Formation, Upper Jurassic; Quarry 5, Dinosaur Ridge, west of Denver, north-central Colorado, USA) (15354473407).jpg

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Stegosaurus dinosaur footprints in fluvial sandstone from the Jurassic of Colorado, USA (public display, Morrison Natural History Museum, Morrison, Colorado, USA).

This sandstone block has the world's finest examples of Stegosaurus dinosaur tracks. The large footprint near & below the center is an adult hind print. This track is artificially elongated - The large depression immediately adjacent to the three toe impressions is the foot itself - the area extending toward the lower right is a slide mark (slip mark). Stegosaurus was a rump-heavy animal, so it was occasionally prone to slipping on wet sediments. The crescent-shaped series of shadowed depressions above the middle and right toes of the hind print is a forefoot track. A juvenile Stegosaurus track occurs between these two adult prints (just above & to the right of the hind print's right toe).

Stratigraphy: Morrison Formation, Upper Jurassic

Locality: Quarry 5, Dinosaur Ridge, west of Denver, north-central Colorado, USA
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Source Stegosaurus dinosaur footprints in sandstone (Morrison Formation, Upper Jurassic; Quarry 5, Dinosaur Ridge, west of Denver, north-central Colorado, USA)
Author James St. John

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/15354473407 (archive). It was reviewed on 6 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

6 December 2019

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Date/TimeThumbnailDimensionsUserComment
current03:57, 6 December 2019Thumbnail for version as of 03:57, 6 December 20192,290 × 1,965 (1.76 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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