Dinosaur tracks from the Cedar Mountain Formation (Lower Cretaceous), Arches National Park, Utah

Ichnos: An International Journal for Plant and Animal Traces
By: , and 

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Abstract

The seventh and largest known dinosaur tracksite from the Cedar Mountain Formation is reported from two important stratigraphic levels in the Ruby Ranch Member within the boundaries of Arches National Park. Previous reports of sites with a few isolated tracks are of limited utility in indicating the fauna represented by track makers. The Arches site reveals evidence of several theropod morphotypes, including a possible match for the coelurosaur Nedcolbertia and an apparently didactyl Utahraptor-like dromeosaurid. Sauropod tracks indicate a wide-gauge morphotype (cf. Brontopodus). Ornithischian tracks suggest the presence of an iguandontid-like ornithopod and a large ankylosaur. Dinosaur track diversity is high in comparison with other early Cretaceous vertebrate ichnofaunas, and it correlates well with faunal lists derived from skeletal remains, thus providing a convincing census of the known fauna.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Dinosaur tracks from the Cedar Mountain Formation (Lower Cretaceous), Arches National Park, Utah
Series title Ichnos: An International Journal for Plant and Animal Traces
DOI 10.1080/10420940490428742
Volume 11
Issue 3-4
Year Published 2004
Language English
Publisher Taylor & Francis
Description 9 p.
First page 285
Last page 293
Country United States
State Utah
Other Geospatial Arches National Park