Species
Valid Extinct

Allosaurus fragilis

(Marsh 1877)

No Wikipedia summary available.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
29
Group
Dinosaures
Carnivore Ground dwelling, solitary Terrestrial
Classification
Dinosauria Unranked clade
Theropoda Unranked clade
Neotheropoda Unranked clade
Averostra Unranked clade
Tetanurae Unranked clade
Allosauroidea Superfamily
Allosaurus Genus
Allosaurus fragilis Species
Fossil sites 29 geolocated sites
Distribution
Top countries
🇺🇸 United States
29
Geological formations
Temporal distribution
Tithonian (149.2–143.1 Ma)
29
Synonyms (9)
Allosaurus ferox subjective synonym of Allosaurus fragilis
Allosaurus lucaris subjective synonym of Allosaurus fragilis
Apatodon mirus subjective synonym of Allosaurus fragilis
Creosaurus atrox subjective synonym of Allosaurus fragilis
Epanterias amplexus subjective synonym of Allosaurus fragilis
Labrosaurus ferox subjective synonym of Allosaurus fragilis
Laelaps trihedrodon subjective synonym of Allosaurus fragilis
Poicilopleuron valens subjective synonym of Allosaurus fragilis
Saurophagus maximus subjective synonym of Allosaurus fragilis
Bibliography
Original description
O. C. Marsh. 1877. Notice of new dinosaurian reptiles from the Jurassic formation. American Journal of Science and Arts 14:514-516 DOI ↗
Bibliography (23)
J. R. Foster, J. B. McHugh, and J. E. Peterson, M. F. Leschin. 2016. Major bonebeds in mudrocks of the Morrison Formation (Upper Jurassic), northern Colorado Plateau of Utah and Colorado. Geology of the Intermountain West 3:33-66 DOI ↗
J. Bertog, D. L. Jeffery, and K. Coode, W. B. Hester, R. R. Robinson, J. Bishop. 2014. Taphonomic patterns of a dinosaur accumulation in a lacustrine delta system in the Jurassic Morrison Formation, San Rafael Swell, Utah, USA. Palaeontologia Electronica 17(3):36A:1-19 DOI ↗
S. G. Dalman. 2014. New data on small theropod dinosaurs from the Upper Jurassic Morrison Formation of Como Bluff, Wyoming, USA. Volumina Jurassica 12(2):181-196
J. Foster. 2005. Evidence of size-classes and scavenging in the theropod Allosaurus fragilis at the Mygatt-Moore Quarry (Late Jurassic), Rabbit Valley, Colorado. Journal of Vertebrate Paleontology 25(3):59A
D. J. Chure. 2001. On the type and referred material of Laelaps trihedron Cope 1877 (Dinosauria: Theropoda). D. H. Tanke and K. Carpenter (eds.), Mesozoic Vertebrate Life, Indiana University Press, Bloomington
J. H. Ostrom and J. S. McIntosh. 1999. Marsh's Dinosaurs: The Collections from Como Bluff. Yale University Press, New Haven
D. K. Smith, D. R. Richmond, and P. J. Bybee. 1999. Morphological variation in a large specimen of Allosaurus fragilis, Upper Jurassic Morrison Formation, eastern Utah. Vertebrate Paleontology in Utah, Utah Geological Survey Miscellaneous Publication 99-1:135-141
C. E. Turner and F. Peterson. 1999. Biostratigraphy of dinosaurs in the Upper Jurassic Morrison Formation of the Western Interior, U.S.A. Vertebrate Paleontology in Utah, Utah Geological Survey Miscellaneous Publication 99-1:77-114
K. Carpenter. 1998. Vertebrate biostratigraphy of the Morrison Formation near Cañon City, Colorado. Modern Geology 23:407-426
J. S. McIntosh. 1981. Annotated catalogue of the dinosaurs (Reptilia, Archosauria) in the collections of the Carnegie Museum of Natural History. Bulletin of Carnegie Museum of Natural History 18:1-67 DOI ↗
W. L. Stokes. 1961. Dinosaur Quarry near Cleveland, Utah. Utah Academy Proceedings 38:132-133
G. E. Ray. 1941. Big for his day. Natural History 41:36-39
C. W. Gilmore. 1920. Osteology of the carnivorous Dinosauria in the United States National Museum, with special reference to the genera Antrodemus (Allosaurus) and Ceratosaurus. Bulletin of the United States National Museum 110:1-154 DOI ↗
W. D. Matthew. 1915. Dinosaurs, with Special Reference to the American Museum Collections. American Museum of Natural History, New York
C. W. Gilmore. 1914. Osteology of the armored Dinosauria in the United States National Museum, with special reference to the genus Stegosaurus. United States National Museum Bulletin 89:1-136 DOI ↗
H. F. Osborn. 1903. The skull of Creosaurus. Bulletin of the American Museum of Natural History 19(31):697-701
S. W. Williston. 1901. The dinosaurian genus Creosaurus, Marsh. American Journal of Science, series 4 11(11):111-114 DOI ↗
O. C. Marsh. 1896. The dinosaurs of North America. United States Geological Survey, 16th Annual Report, 1894-95 55:133-244 DOI ↗
O. C. Marsh. 1884. Principal characters of American Jurassic dinosaurs. Part VIII. The order Theropoda. The American Journal of Science, series 3 27:329-340 DOI ↗
E. D. Cope. 1878. A new opisthocoelous dinosaur. American Naturalist 12(6):406
O. C. Marsh. 1878. Notice of new dinosaurian reptiles. American Journal of Science and Arts 15:241-244 DOI ↗
E. D. Cope. 1877. On a carnivorous dinosaurian from the Dakota Beds of Colorado. Bulletin of the United States Geological and Geographical Survey 3(4):805-806
J. Leidy. 1870. [Remarks on Poikilopleuron valens, Clidastes intermedius, Macrosaurus proriger, Baptemys wyomingensis, and Emys stevensonianus]. Proceedings of the Academy of Natural Sciences of Philadelphia 22(1):3-5