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Image: Marshosaurus bicentesimus

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Description: Marshosaurus sp. (or Marshosaurus bicentesimus) theropod dinosaur skull (reconstructed) from the Jurassic of Utah, USA (public display, CM 21704, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA). Stratigraphy: Morrison Formation, Upper Jurassic Localty: Dinosaur National Monument, northeastern Utah, USA Theropod were small to large, bipedal dinosaurs. Almost all known members of the group were carnivorous (predators and/or scavengers). They represent the ancestral group to the birds, and some theropods are known to have had feathers. Some of the most well known dinosaurs to the general public are theropods, such as Tyrannosaurus, Allosaurus, and Spinosaurus.
Title: Marshosaurus bicentesimus
Credit: Marshosaurus bicentesimus theropod dinosaur (Morrison Formation, Upper Jurassic; Dinosaur National Monument, northeastern Utah, USA)
Author: James St. John
Usage Terms: Creative Commons Attribution 2.0
License: CC BY 2.0
License Link: https://creativecommons.org/licenses/by/2.0
Attribution Required?: Yes

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