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Allosaurus fragilis
Taxonomy
Allosaurus fragilis was named by Marsh (1877). Its type specimen is USNM 4834 (formerly YPM 1930), a partial skeleton, and it is a 3D body fossil. 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. It is the type species of Allosaurus. It was considered monophyletic by Madsen (1976).
It was synonymized subjectively with Antrodemus valens by Gilmore (1920), Piveteau (1923), Hay (1930), Kuhn (1939), Steel (1970) and Swinton (1970); it was recombined as Antrodemus fragilis by Tatarinov (1964).
It was synonymized subjectively with Antrodemus valens by Gilmore (1920), Piveteau (1923), Hay (1930), Kuhn (1939), Steel (1970) and Swinton (1970); it was recombined as Antrodemus fragilis by Tatarinov (1964).
Synonyms
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Synonymy list
Year | Name and author |
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1870 | Poicilopleuron valens Leidy p. 3 |
1873 | Poicilopleuron valens Leidy pp. 267-269 figs. 16-18 |
1877 | Laelaps trihedrodon Cope p. 5 |
1877 | Allosaurus fragilis Marsh |
1877 | Apatodon mirus Marsh |
1877 | Allosaurus fragilis Marsh pp. 515-516 |
1878 | Laelaps trihedrodon Cope p. 233 |
1878 | Epanterias amplexus Cope p. 406 |
1878 | Allosaurus fragilis King p. 346 |
1878 | Allosaurus lucaris King p. 346 |
1878 | Creosaurus atrox King p. 346 |
1878 | Allosaurus lucaris Marsh |
1878 | Creosaurus atrox Marsh |
1878 | Allosaurus lucaris Marsh p. 242 |
1878 | Creosaurus atrox Marsh p. 243 fig. 1 |
1878 | Dryptosaurus trihedridon Williston p. 45 |
1879 | Labrosaurus lucaris Marsh |
1880 | Allosaurus fragilis Sauvage p. 523 |
1880 | Allosaurus lucarius Sauvage p. 523 |
1880 | Creosaurus atrox Sauvage p. 523 |
1883 | Allosaurus fragilis Dollo p. 95 |
1884 | Labrosaurus ferox Marsh p. 333 fig. 9 |
1884 | Allosaurus fragilis Vetter p. 357 |
1885 | Allosaurus fragilis Woodward p. 12 |
1887 | Allosaurus agilis Zittel |
1890 | Megalosaurus valens Zittel p. 724 |
1890 | Allosaurus agilis Zittel p. 725 |
1890 | Creosaurus atrox Zittel p. 725 |
1896 | Allosaurus ferox Marsh |
1897 | Allosaurus fragilis Marsh p. 526 |
1897 | Labrosaurus ferox Marsh p. 526 |
1900 | Allosaurus fragilis Knight p. 384 |
1900 | Labrosaurus ferox Walcott p. 23 |
1901 | Creosaurus atrox Nopcsa p. 197 |
1901 | Allosaurus fragilis Nopcsa p. 198 |
1901 | Allosaurus lucaris Nopcsa p. 198 |
1901 | Laelaps trihedrodon Nopcsa p. 199 |
1901 | Labrosaurus ferox Nopcsa p. 201 |
1901 | Megalosaurus valens Nopcsa p. 201 |
1901 | Epanterias amplexus Nopcsa p. 205 |
1902 | Epanterias amplexus Hay p. 483 |
1902 | Dryptosaurus trihedrodon Hay p. 488 |
1902 | Allosaurus fragilis Hay p. 489 |
1902 | Antrodemus lucaris Hay p. 489 |
1902 | Antrodemus valens Hay p. 489 |
1902 | Creosaurus atrox Hay p. 489 |
1902 | Apatodon mirus Hay p. 506 |
1902 | Allosaurus fragilis Mansel-Pleydell p. lxxviii |
1903 | Creosaurus atrox Osborn pp. 697-701 |
1904 | Creosaurus atrox Lambe p. 8 |
1904 | Allosaurus fragilis Lambe p. 22 |
1910 | Creosaurus atrox Versluys p. 181 |
1911 | Allosaurus agilis Jaekel p. 160 |
1911 | Allosaurus fragilis Lull p. 173 |
1911 | Creosaurus atrox Lull p. 186 |
1911 | Allosaurus agilis von Zittel p. 280 |
1914 | Allosaurus agilis Huene p. 587 figs. Pl. 7 |
1915 | Allosaurus agilis Stromer p. 6 |
1916 | Epanterias amplexus Mook p. 137 |
1916 | Creosaurus atrox Mook p. 140 |
1916 | Dryptosaurus trihedrodon Mook p. 140 |
1916 | Allosaurus fragilis Mook p. 141 |
1916 | Antrodesmus lucaris Mook p. 141 |
1916 | Antrodesmus valens Mook p. 142 |
1916 | Apatodon mirus Mook p. 147 |
1919 | Allosaurus fragilis Huene figs. Pl. VII |
1919 | Epanterias amplexus Osborn and Mook p. 383 |
1919 | Laelaps trihedrodon Osborn and Mook p. 390 |
1920 | Antrodemus valens Gilmore |
1920 | Labrosaurus ferox Gilmore p. 124 |
1923 | Antrodemus valens Huene p. 457 fig. 3 |
1923 | Antrodemus valens Piveteau p. 6 |
1924 | Allosaurus fragilis Lull p. 256 |
1928 | Allosaurus agilis Perrier p. 3087 |
1930 | Antrodemus trihedrodon Hay p. 174 |
1930 | Antrodemus valens Hay p. 174 |
1930 | Creosaurus atrox Hay p. 175 |
1930 | Labrosaurus ferox Hay p. 184 |
1930 | Labrosaurus lucaris Hay p. 184 |
1930 | Epanterias amplexus Hay p. 192 |
1930 | Apatodon mirus Hay p. 201 |
1931 | Antrodemus atrox Johnson p. 358 |
1931 | Antrodemus valens Stromer p. 4 |
1934 | Allosaurus fragilis Stromer p. 11 |
1934 | Labrosaurus ferox Stromer p. 23 |
1934 | Allosaurus fragilis Stromer pp. 77-78 |
1939 | Labrosaurus lucaris Kuhn p. 42 |
1939 | Labrosaurus ferox Kuhn p. 43 |
1939 | Antrodemus valens Kuhn p. 71 |
1939 | Antrodemus trihedrodon Kuhn p. 72 |
1939 | Creosaurus atrox Kuhn p. 73 |
1941 | Saurophagus maximus Ray p. 38 |
1943 | Saurophagus maximus Stovall p. 70 |
1947 | Allosaurus fragilis Lapparent p. 20 |
1954 | Antrodemus valens Untermann and Untermann p. 90 |
1958 | Antrodemus valens Young p. 233 |
1962 | Antrodemus valens Jain et al. p. 756 |
1962 | Allosaurus fragilis Lapparent p. 20 |
1964 | Antrodemus fragilis Tatarinov p. 536 fig. 572 |
1964 | Antrodemus valens Tatarinov p. 537 |
1967 | Allosaurus fragilis Pinna p. 145 |
1970 | Antrodemus valens Steel p. 29 |
1970 | Dryptosaurus trihedrodon Steel p. 31 |
1970 | Epanterias amplexus Steel p. 44 |
1970 | Apatodon mirus Steel p. 75 |
1970 | Antrodemus valens Swinton p. 148 |
1972 | Allosaurus fragilis Madsen Jr. and Stokes p. 49 |
1972 | Allosaurus fragilis Welles p. 3 |
1972 | Antrodemus valens Welles p. 3 |
1974 | Allosaurus fragilis Molnar p. 1011 |
1975 | Antrodemus valens Paton p. 17 |
1976 | Allosaurus fragilis Lawson p. 161 |
1976 | Allosaurus fragilis Madsen p. 10 |
1977 | Allosaurus fragilis Taquet and Welles p. 192 |
1978 | Allosaurus fragilis Madsen Jr. and Stokes p. 69 |
1979 | Allosaurus fragilis Madsen and Miller p. 59 |
1980 | Allosaurus fragilis Lisak p. 20 |
1980 | Allosaurus fragilis Molnar p. 92 |
1980 | Allosaurus fragilis Molnar and Pledge p. 285 fig. 3 |
1981 | Allosaurus fragilis Molnar et al. p. 142 |
1982 | Allosaurus fragilis McGinnis p. 57 |
1982 | Antrodemus valens Yadagiri p. 5 |
1984 | Allosaurus fragilis Jensen p. 375 |
1984 | Allosaurus fragilis Thulborn p. 137 |
1985 | Allosaurus fragilis Molnar et al. pp. 1511-1512 |
1986 | Allosaurus fragilis Gauthier p. 9 |
1986 | Allosaurus fragilis Hunt p. A21 |
1987 | Allosaurus fragilis Mateer p. 142 |
1988 | Allosaurus fragilis Paul p. 309 |
1988 | Allosaurus atrox Paul p. 311 |
1988 | Allosaurus amplexus Paul p. 312 |
1989 | Allosaurus fragilis Hutt et al. p. 141 |
1990 | Epanterias amplexus Bakker p. 2 |
1990 | Allosaurus fragilis Molnar et al. p. 189 |
1991 | Allosaurus fragilis Bonaparte p. 18 |
1991 | Allosaurus fragilis Molnar p. 165 |
1991 | Allosaurus fragilis Weishampel et al. p. 209 |
1992 | Epanterias amplexus Bakker et al. p. 2 |
1992 | Allosaurus fragilis Bakker et al. p. 9 |
1992 | Allosaurus fragilis Rich et al. p. 171 |
1992 | Allosaurus fragilis Sanz et al. p. 50 |
1994 | Allosaurus fragilis Molnar and Wiffen p. 693 |
1994 | Allosaurus fragilis Rauhut and Kriwet p. 182 |
1995 | Allosaurus fragilis Buffetaut et al. p. 70 |
1996 | Epanterias amplexus Bakker p. 44 |
1996 | Allosaurus fragilis Breithaupt p. 309 |
1996 | Allosaurus fragilis Novas p. 676 |
1996 | Allosaurus fragilis Osmólska p. 29 |
1997 | Allosaurus fragilis Carpenter p. 91 |
1997 | Allosaurus fragilis Currie and Padian p. 369 |
1997 | Allosaurus fragilis Padian and Hutchinson p. 8 |
1997 | Allosaurus fragilis Schweitzer p. 459 |
1997 | Allosaurus fragilis Smith p. 126 |
1998 | Allosaurus fragilis Smith p. 126 |
1999 | Allosaurus fragilis Carpenter p. 8 |
1999 | Allosaurus fragilis Knoll et al. p. 105 |
2000 | Allosaurus fragilis Foster and Chure p. 8 fig. 3 |
2000 | Allosaurus fragilis Sanz p. 275 |
2001 | Allosaurus fragilis Farlow p. 415 |
2001 | Allosaurus fragilis Larsson p. 20 |
2001 | Allosaurus fragilis Mojon p. 3 |
2002 | Allosaurus fragilis Hanna p. 76 |
2003 | Allosaurus fragilis Rauhut p. 22 |
2004 | Allosaurus fragilis Holtz, Jr. et al. p. 75 |
2004 | Allosaurus fragilis Senter et al. p. 14 fig. 7 |
2005 | Allosaurus fragilis Kobayashi and Barsbold p. 120 |
2006 | Allosaurus fragilis Chure et al. p. 236 |
2006 | Allosaurus fragilis Hunt and Lucas p. 117 |
2006 | Allosaurus fragilis Malkani p. 8 |
2006 | Allosaurus fragilis Martínez and Novas p. 244 |
2006 | Allosaurus fragilis Mateus p. 231 |
2006 | Allosaurus fragilis Mateus et al. pp. 127-128 |
2006 | Allosaurus fragilis Scanlon p. 274 |
2006 | Allosaurus fragilis Smith and Merrill p. 595 |
2007 | Allosaurus fragilis Maganuco et al. p. 268 |
2007 | Allosaurus fragilis Malafaia et al. p. 255 |
2007 | Allosaurus fragilis Sampson and Witmer p. 33 |
2007 | Allosaurus fragilis Smith p. 104 |
2007 | Allosaurus fragilis Turner et al. p. 6 |
2007 | Allosaurus fragilis Wings et al. p. 126 |
2008 | Allosaurus fragilis Irmis and Knoll p. 121 |
2008 | Allosaurus fragilis Malafaia et al. p. 274 |
2008 | Allosaurus fragilis Watabe et al. p. 35 |
2009 | Allosaurus fragilis Bever and Norell p. 21 |
2009 | Allosaurus fragilis Bittencourt and Kellner p. 22 |
2009 | Allosaurus fragilis Malafaia et al. p. 244–245 |
2009 | Allosaurus fragilis Ortega et al. p. 51 |
2009 | Allosaurus fragilis Wu et al. p. 23 |
2009 | Allosaurus fragilis Xing et al. p. 1392 |
2010 | Allosaurus fragilis Bell p. 1263 |
2010 | Allosaurus fragilis Benson et al. p. 75 |
2010 | Allosaurus fragilis Choiniere et al. p. 573 fig. 2B |
2010 | Allosaurus fragilis Galiano and Albersdörfer p. 5 |
2010 | Allosaurus fragilis Malafaia et al. p. 200 |
2010 | Allosaurus fragilis Paulina Carabajal and Canale p. 249 |
2011 | Allosaurus fragilis Bronowicz p. 482 |
2011 | Allosaurus fragilis Hone et al. p. 502 |
2011 | Allosaurus fragilis Mateus et al. p. 65 |
2011 | Allosaurus fragilis Turner et al. p. 59 |
2011 | Allosaurus fragilis Xu et al. p. 220 |
2012 | Allosaurus fragilis Carrano et al. p. 223 |
2012 | Allosaurus fragilis Decker p. 8 |
2012 | Allosaurus fragilis Paulina Carabajal and Currie p. 86 |
2012 | Allosaurus fragilis White et al. p. 2 |
2013 | Allosaurus fragilis Bell and Coria p. 1 |
2013 | Allosaurus fragilis Fernandes de Azevedo et al. p. 134 |
2013 | Allosaurus fragilis Hanson and Makovicky p. 779 |
2014 | Allosaurus fragilis Dalman p. 161 |
2014 | Allosaurus atrox Dalman p. 168 |
2014 | Allosaurus fragilis Delsate and Ezcurra p. 177 |
2014 | Allosaurus fragilis Hendrickx and Mateus p. 20 |
2014 | Allosaurus fragilis Xing et al. p. 1653 |
2015 | Allosaurus fragilis White et al. p. 11 |
2016 | Allosaurus fragilis Coria and Currie p. 2 |
2016 | Allosaurus fragilis Foster et al. p. 34 |
2016 | Allosaurus fragilis Foster and Peterson p. 431 |
2016 | Allosaurus fragilis Salisbury et al. p. 31 |
2018 | Allosaurus fragilis Aureliano et al. p. 286 |
2018 | Allosaurus fragilis Dal Sasso et al. p. 19 |
2018 | Allosaurus fragilis Delcourt p. 9 |
2019 | Allosaurus fragilis Brougham et al. p. 14 |
2019 | Allosaurus fragilis Zahner and Brinkmann p. 1148 |
2020 | Allosaurus fragilis Gutherz et al. |
2020 | Allosaurus fragilis Sakagami and Kawabe p. 12 |
2021 | Allosaurus fragilis Ferrante et al. p. 2 |
2021 | Allosaurus fragilis Titus et al. p. 2 |
2023 | Allosaurus fragilis International Commission on Zoological Nomenclature p. 65–68 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Allosaurus fragilis Marsh 1877
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Invalid names: Allosaurus ferox Marsh 1896 [synonym], Allosaurus lucaris Marsh 1878 [synonym], Apatodon mirus Marsh 1877 [synonym], Creosaurus atrox Marsh 1878 [synonym], Epanterias amplexus Cope 1878 [synonym], Labrosaurus ferox Marsh 1884 [synonym], Laelaps trihedrodon Cope 1877 [synonym], Poicilopleuron valens Leidy 1870 [synonym], Saurophagus maximus Ray 1941 [synonym]
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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coracoid height | 1 | 170.0 | - | - | - | - | |
femur circumference | 7 | 323.1 | 255.0 | 375.0 | 338.0 | 39.3 | |
fibula circumference | 6 | 113.8 | 97.0 | 128.0 | 114.0 | 11.8 | |
tibia circumference | 5 | 278.0 | 258.0 | 313.0 | 277.0 | 21.2 |
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Source: g = genus, o = order | |||||
References: Marsh 1875, Peczkis 1995 |
Age range: Early/Lower Tithonian or 150.80000 to 145.00000 Ma
Collections (25 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Kimmeridgian - Tithonian | USA (Utah) | Allosaurus sp. (49614 220417) | |
Kimmeridgian - Tithonian | USA (Colorado) | Allosaurus fragilis (184627) Allosaurus sp. (11611) Laelaps trihedrodon (48127 48128) Poicilopleuron valens (52872) | |
Kimmeridgian - Tithonian | USA (Wyoming) | Allosaurus ferox (39371) Allosaurus fragilis (39370 48837) Allosaurus fragilis, Creosaurus atrox, Antrodemus valens (13214) Allosaurus lucaris (39340) Allosaurus sp. (73998) Antrodemus sp. (12816) Antrodemus valens (39338 39342) Creosaurus atrox (13212) Creosaurus atrox, Allosaurus sp. (22648) | |
Late/Upper Kimmeridgian - Early/Lower Tithonian | USA (Colorado) | Allosaurus fragilis, Labrosaurus ferox (type locality: 28366) | |
Late/Upper Kimmeridgian - Early/Lower Tithonian | USA (Wyoming) | Allosaurus fragilis (49577) | |
Late/Upper Kimmeridgian - Tithonian | USA (Oklahoma) | Saurophagus maximus (49338) | |
Tithonian | USA (Utah) | Antrodemus sp. (46439) | |
Tithonian | USA (Colorado) | Allosaurus fragilis (48162) Epanterias amplexus (48129) | |
Early/Lower Tithonian | USA (Utah) | Allosaurus sp. (21852) |