page_title: Eutretauranosuchus
section_title: Geological and paleoenvironmental information
hierarchical_section_title: Eutretauranosuchus / Geological and paleoenvironmental information
caption_attribution_description: Colorado National Monument is a colorful and scenic park just southwest of the town of Grand Junction in western Colorado, USA. It's located in the northeastern part of the Colorado Plateau Physiographic Province, a large section of continental crust that was significant uplifted during the Cenozoic. The rocks in the park are gently folded into a large monocline that has been erosionally dissected into a series of dramatic canyons. The outcrop shown above is a shale-dominated slope of the Morrison Formation, an Upper Jurassic succession that is widely distributed in many western American states. The Morrison consists of fluvial (river/floodplain) and lacustrine (lake) deposits, plus reddish-colored paleosol horizons. Dinosaur bones and dinosaur tracks are moderately common in Morrison Formation sediments (exceptionally rich localities include Como Bluff in Wyoming, Dinosaur National Monument in Utah, Dinosaur Ridge in Colorado, and the Cleveland-Lloyd Quarry in Utah). Locality: No Thoroughfare Canyon, southeastern Colorado National Monument, southwest of the town of Grand Junction, west-central Mesa County, far-western Colorado, USA
context_page_description: Eutretauranosuchus is an extinct genus of goniopholidid crocodyliform. E. delfsi is the only known species within the genus.
context_section_description: Eutretauranosuchus is currently known from specimens found in the Upper Jurassic Dry Mesa Dinosaur Quarry in Canon City, Colorado; the Brushy Basin Member in Western Colorado; and the Bone Cabin Quarry site in Wyoming—all of which are parts of the Morrison Formation. Other Gonopholididae appear in strata from the Early Jurassic to Late Cretaceous. The family is classed as a Laurasian group, with specimens located in North America, Europe, and South-East Asia. Specimens from this group are often found in estuarine and freshwater deposits.
caption: Morrison Formation, Colorado
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