Allosaurus fragilis Marsh 1877 (allosaurid)

Reptilia - Avetheropoda - Allosauridae

Alternative combinations: Allosaurus agilis, Antrodemus fragilis

Synonyms: Allosaurus amplexus Cope 1878, Allosaurus atrox Marsh 1878, Allosaurus ferox Marsh 1896, Allosaurus lucaris Marsh 1878, Allosaurus lucarius Marsh 1878, Antrodemus atrox Marsh 1878, Antrodemus lucaris Marsh 1878, Antrodemus valens Leidy 1870, Creosaurus atrox Marsh 1878, Dryptosaurus trihedridon Cope 1877, Dryptosaurus trihedrodon Cope 1877, Epanterias amplexus Cope 1878, Labrosaurus ferox Marsh 1884, Labrosaurus lucaris Marsh 1878, Laelaps trihedrodon Cope 1877, Megalosaurus valens Leidy 1870, Poicilopleuron valens Leidy 1870, Saurophagus maximus Ray 1941

Full reference: O. C. Marsh. 1877. Notice of new dinosaurian reptiles from the Jurassic formation. American Journal of Science and Arts 14:514-516

Belongs to Allosaurus according to M. T. Carrano et al. 2012

See also Bakker 1990, Bakker 1996, Bakker et al. 1992, Bell 2010, Bell and Coria 2013, Benson et al. 2010, Bever and Norell 2009, Bonaparte 1991, Buffetaut et al. 1995, Carpenter 1997, Choiniere et al. 2010, Chure 1995, Chure et al. 2006, Cope 1877, Cope 1877, Cope 1878, Cope 1878, Coria and Currie 2016, Currie and Padian 1997, Czaplewski et al. 1994, Delsate and Ezcurra 2014, Dollo 1883, Farlow 2001, Foster and Chure 2000, Foster et al. 2016, Galiano and Albersdörfer 2010, Galiano and Albersdörfer 2010, Gauthier 1986, Gilmore 1920, Hanna 2002, Hay 1902, Holtz et al. 2004, Hone et al. 2011, Huene 1914, Huene 1919, Huene 1923, Hunt 1986, Hunt and Lucas 2006, Irmis and Knoll 2008, Jain et al. 1962, Jensen 1984, Johnson 1931, King 1878, Knight 1900, Knoll et al. 1999, Kobayashi and Barsbold 2005, Lambe 1904, Lapparent 1947, Lapparent 1962, Larsson 2001, Lawson 1976, Leidy 1870, Lisak 1980, Lull 1911, Lull 1911, Lull 1924, Madsen 1976, Madsen and Stokes 1972, Madsen and Stokes 1978, Maganuco et al. 2007, Malafaia et al. 2007, Malafaia et al. 2008, Malafaia et al. 2009, Malafaia et al. 2010, Malkani 2006, Mansel-Pleydell 1902, Marsh 1877, Marsh 1878, Marsh 1879, Marsh 1896, Martínez and Novas 2006, Mateer 1987, Mateus 2006, Mateus et al. 2006, Mojon 2001, Molnar 1974, Molnar 1980, Molnar 1980, Molnar 1991, Molnar et al. 1981, Molnar et al. 1985, Molnar et al. 1990, Molnar and Pledge 1980, Molnar and Wiffen 1994, Novas 1996, Osborn 1903, Osborn and Mook 1919, Osmólska 1996, Padian and Hutchinson 1997, Paton 1975, Paul 1988, Paulina Carabajal and Canale 2010, Paulina Carabajal and Currie 2012, Pinna 1967, Piveteau 1923, Rauhut 2003, Rauhut and Kriwet 1994, Ray 1941, Rich et al. 1992, Salisbury et al. 2016, Sampson and Witmer 2007, Sauvage 1880, Schweitzer 1997, Senter et al. 2004, Smith 1997, Smith 1997, Smith 1998, Smith 2007, Smith and Merrill 2006, Steel 1970, Stovall 1943, Stromer 1915, Stromer 1931, Stromer 1934, Stromer 1934, Swinton 1970, Taquet and Welles 1977, Tatarinov 1964, Thulborn 1984, Turner et al. 2007, Vetter 1884, von Zittel 1911, Walcott 1900, Watabe et al. 2008, Weishampel et al. 1991, Welles 1972, White et al. 2015, Williston 1878, Woodward 1885, Wu et al. 2009, Xing et al. 2009, Xu et al. 2011, Young 1958 and Zittel 1890

Sister taxa: Allosaurus europaeus, Allosaurus jimmadseni, Allosaurus lucasi, Camptonotus amplus, Labrosaurus sulcatus

Type specimens:

  • Allosaurus fragilis: YPM 1930, a partial skeleton. Its type locality is Felch Quarry 1, Garden Park (YPM), which is in a Kimmeridgian/Tithonian channel sandstone/claystone in the Morrison Formation of Colorado.
  • Allosaurus ferox: YPM 1893. Its type locality is Quarry 14, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian wet floodplain siltstone in the Morrison Formation of Wyoming.
  • Allosaurus lucaris: YPM 1931. Its type locality is Quarry 3, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian wet floodplain mudstone in the Morrison Formation of Wyoming.
  • Creosaurus atrox: YPM 1890, a partial skeleton. Its type locality is Quarry 1, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian wet floodplain claystone in the Morrison Formation of Wyoming.
  • Epanterias amplexus: AMNH 5767. Its type locality is Cope Quarry III, Cope's Nipple, which is in a Tithonian dry floodplain mudstone in the Morrison Formation of Colorado.
  • Labrosaurus ferox: USNM 2315. Its type locality is Felch Quarry 1, Garden Park (YPM), which is in a Kimmeridgian/Tithonian channel sandstone/claystone in the Morrison Formation of Colorado.
  • Laelaps trihedrodon: AMNH (lost), a mandible. Its type locality is Cope Quarry I, Cope's Nipple, which is in a Kimmeridgian/Tithonian dry floodplain mudstone in the Morrison Formation of Colorado.
  • Poicilopleuron valens: USNM 218, a set of vertebrae. Its type locality is Middle Park (USNM 218), which is in a Kimmeridgian/Tithonian pond horizon in the Morrison Formation of Colorado.
  • Saurophagus maximus: Its type locality is OMNH Quarry 1, Kenton (OMNH V92), which is in a Kimmeridgian/Tithonian wet floodplain claystone/sandstone in the Morrison Formation of Oklahoma.

Ecology: ground dwelling carnivore

Average measurements (in mm): femur circumference 323.1, fibula circumference 113.8, tibia circumference 278.0

Distribution:

• Jurassic of Portugal (1 collection), United States (15: Colorado, Utah, Wyoming)

Total: 16 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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