Exhibit Spotlight Allosaurus fragilis img

Let’s check out Utah’s state fossil, Allosaurus. We have a bunch of these guys in the park, so it’s an important one to know at any time.


Marsh, O. C. (1877). ART. LIII.–Notice of New Dinosaurian Reptiles from the Jurassic formation. American Journal of Science and Arts (1820-1879), 14(84), 514.

Mateus, O., Walen, A., & Antunes, M. T. (2006). The Large Theropod Fauna of the Lourinha Formation (Portugal) and Its Similarity to That of the Morrison Formation, with a Description of a New Species of Allosaurus. Paleontology and Geology of the Upper Jurassic Morrison Formation: Bulletin 36, 36, 123.

Dalman, S. (2014). Osteology of a large allosauroid theropod from the Upper Jurassic (Tithonian) Morrison Formation of Colorado, USA. Volumina Jurassica, 12(2), 159-180.

Hirsch, K. F., Stadtman, K. L., Miller, W. E., & Madsen Jr, J. H. (1989). Upper Jurassic dinosaur egg from Utah. Science, 243(4899), 1711.

Pinegar, R. T., Loewen, M. A., Cloward, K. C., Hunter, R. J., & Weege, C. J. (2003, January). A Juvenile Allosaur with Preserved Integument from the Basal Morrison Formation of Central Wyoming. In Journal of Vertebrate Paleontology (Vol. 23, pp. 87A-88A).