Classification of Romer 1966

Cl. Reptilia Laurenti 1768 [reptile]
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Subcl. †Euryapsida Colbert 1945
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Invalid names: Synaptosauria Williston 1925 [synonym]
Or. Squamata Oppel 1811 [squamates]
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Subor. Ophidia Latreille 1804 [snake]
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Invalid names: Serpentes Linnaeus 1758 [synonym]
Fm. †Megalosaurinidae Fitzinger 1843
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G. †Bahariasaurus Stromer 1934
G. †Carcharodontosaurus Stromer 1931
G. †Ceratosaurus Marsh 1884
G. †Chienkosaurus Young 1942
G. †Chilantaiosaurus Hu 1964
G. †Dryptosauroides Huene 1933
G. †Inosaurus Lapparent 1960
G. †Macrodontophion Zborzewski 1834
G. †Proceratosaurus Huene 1926
G. †Sarcosaurus Andrews 1921
Fm. Tylopoda Illiger 1811
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Superfm. †Anoplotherioidea Bonaparte 1850
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Fm. †Anoplotheriidae Gray 1821
Subcl. Archosauria Cope 1869 [archosaur]
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Or. †Ornithischia Seeley 1888 [ornithischian]
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Subor. †Ankylosauria Osborn 1923 [ankylosaur]
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Fm. †Acanthopholidae Nopcsa 1902
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G. †Acanthopholis Huxley 1867
G. †Hylaeosaurus Mantell 1833
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Invalid names: Regnosaurus Mantell 1848 [synonym]
G. †Loricosaurus Huene 1927
G. †Onychosaurus Nopcsa 1902
G. †Rhodanosaurus Nopcsa 1929
G. †Struthiosaurus Bunzel 1870
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Invalid names: Crataeomus Seeley 1881 [synonym], Danubriosaurus Bunzel 1871 [synonym], Leipsanosaurus Nopcsa 1918 [synonym], Pleuropeltus Seeley 1881 [synonym]
Fm. †Nodosauridae Marsh 1890
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G. †Anodontosaurus Sternberg 1929
G. †Brachypodosaurus Chakravarti 1934 [heavy foot lizard]
G. †Dyoplosaurus Parks 1924
G. †Edmontonia Sternberg 1928
G. †Euoplocephalus Lambe 1910
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Invalid names: Ankylosaurus Brown 1908 [synonym], Stereocephalus Lambe 1902 [synonym]
G. †Heishanosaurus Bohlin 1953
G. †Hierosaurus Wieland 1909
G. †Hoplitosaurus Lucas 1902
G. †Lametasaurus Matley 1924
G. †Nodosaurus Marsh 1889
G. †Palaeoscincus Leidy 1856
G. †Panoplosaurus Lambe 1919
G. †Paracanthodon Nopcsa 1929
G. †Peishansaurus Bohlin 1953
G. †Pinacosaurus Gilmore 1933
G. †Polacanthoides Nopcsa 1928
G. †Polacanthus Fox 1866
G. †Sauroplites Bohlin 1953
G. †Scolosaurus Nopcsa 1928 [thorn lizard]
G. †Silvisaurus Eaton, Jr. 1960
G. †Stegopelta Williston 1905
G. †Stegosaurides Bohlin 1953
G. †Syrmosaurus Maleev 1952
G. †Talarurus Maleev 1952
Invalid names: Ankylosauridae Brown 1908 [synonym]
Subor. †Ceratopsia Marsh 1890 [ceratopsian]
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Fm. †Ceratopsidae Marsh 1888 [ceratopsid]
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G. †Anchiceratops Brown 1914
G. †Arrhinoceratops Parks 1925
G. †Centrosaurus Lambe 1905
G. †Ceratops Marsh 1888
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Invalid names: Proceratops Lull 1906 [synonym]
G. †Chasmosaurus Lambe 1914
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Invalid names: Protorosaurus Lambe 1914 [synonym]
G. †Diceratops Hatcher and Lull 1905
G. †Eoceratops Lambe 1915
G. †Microceratops Bohlin 1953
G. †Monoclonius Cope 1876
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Invalid names: Brachyceratops Gilmore 1914 [synonym]
G. †Pentaceratops Osborn 1923
G. †Styracosaurus Lambe 1913
G. †Torosaurus Marsh 1891
G. †Triceratops Marsh 1889
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Invalid names: Agathaumas Cope 1872 [synonym], Polyonax Cope 1874 [synonym], Sterrholophus Marsh 1891 [synonym]
Fm. †Protoceratopsidae Granger and Gregory 1923
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G. †Leptoceratops Brown 1914
G. †Montanoceratops Sternberg 1951
G. †Notoceratops Tapia 1919 [southern horn face]
G. †Protoceratops Granger and Gregory 1923
Invalid names: Pachyrhinosauridae Sternberg 1950 [empty]
Subor. †Ornithopoda Marsh 1881 [ornithopod]
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Fm. †Hadrosauridae Cope 1869 [hadrosaurid]
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G. †Anatosaurus Lull and Wright 1942
G. †Bactrosaurus Gilmore 1933
G. †Brachylophosaurus Sternberg 1953
G. †Cheneosaurus Lambe 1917
G. †Claorhynchus Cope 1892
G. †Claosaurus Marsh 1890
G. †Corythosaurus Brown 1914
G. †Dysganus Cope 1876
G. †Edmontosaurus Lambe 1917
G. †Hadrosaurus Leidy 1858
G. †Hypacrosaurus Brown 1913
G. †Hypsibema Cope 1869
G. †Kritosaurus Brown 1910
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Invalid names: Gryposaurus Lambe 1914 [synonym]
G. †Lambeosaurus Parks 1923
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Invalid names: Stephanosaurus Lambe 1914 [synonym]
G. †Lophorhothon Langston 1960
G. †Mandschurosaurus Riabinin 1930
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Invalid names: Nipponosaurus Nagao 1936 [synonym]
G. †Ornithotarsus Cope 1869
G. †Orthomerus Seeley 1883
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Invalid names: Hecatasaurus Brown 1910 [synonym], Limnosaurus Nopcsa 1900 [synonym], Telmatosaurus Nopcsa 1903 [synonym]
G. †Parasaurolophus Parks 1922
G. †Procheneosaurus Matthew 1920
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Invalid names: Tetragonosaurus Parks 1931 [synonym]
G. †Prosaurolophus Brown 1916
G. †Saurolophus Brown 1912
G. †Tanius Wiman 1929
G. †Thespesius Leidy 1856
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Invalid names: Cionodon Cope 1874 [synonym], Diclonius Cope 1876 [synonym], Didanodon Osborn 1902 [synonym], Pterypelyx Cope 1889 [synonym]
G. †Trachodon Leidy 1856
G. †Tsintaosaurus Young 1958
G. †Yaxartosaurus Riabinin 1937
Invalid names: Trachodontidae Lydekker 1888 [synonym]
Fm. †Heterodontosauridae Romer 1966 [heterodontosaurid]
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G. †Heterodontosaurus Crompton and Charig 1962
Fm. †Hypsilophodontidae Dollo 1882 [hypsilophodontid]
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G. †Geranosaurus Broom 1911
G. †Hypsilophodon Huxley 1870
G. †Laosaurus Marsh 1878
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Invalid names: Dryosaurus Marsh 1894 [synonym]
G. †Lycorhinus Haughton 1924
G. †Marcellognathus Marsh 1884
G. †Nannosaurus Marsh 1877
G. †Parksosaurus Sternberg 1937
G. †Stenopelix Meyer 1857
G. †Tatisaurus Simmons 1965
G. †Thescelosaurus Gilmore 1913
Fm. †Iguanodontidae Bonaparte 1850 [iguanodontid]
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G. †Anoplosaurus Seeley 1879
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Invalid names: Eucerosaurus Seeley 1879 [synonym], Syngonosaurus Seeley 1879 [synonym]
G. †Camptosaurus Marsh 1885
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Invalid names: Campotonodus Marsh 1879 [synonym], Cumnoria Seeley 1888 [synonym]
G. †Craspedodon Dollo 1883
G. †Cryptodraco Lydekker 1889
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Invalid names: Cryptosaurus Seeley 1875 [synonym]
G. †Dysalotosaurus Virchow 1919
G. †Iguanodon Mantell 1825
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Invalid names: Iguanosaurus Anonymous 1824 [synonym], Sphenospondylus Seeley 1883 [synonym], Therosaurus Fitzinger 1843 [synonym]
G. †Kangnasaurus Haughton 1915
G. †Rhabdodon Matheron 1869
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Invalid names: Mochlodon Seeley 1881 [synonym], Ornithomerus Seeley 1881 [synonym]
G. †Vectisaurus Hulke 1879
Fm. †Pachycephalosauridae Sternberg 1945
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G. †Pachycephalosaurus Brown and Schlaikjer 1943
G. †Stegoceras Lambe 1902
Invalid names: Troodontidae Gilmore 1924 [synonym]
Fm. †Psittacosauridae Osborn 1923
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G. †Protiguanodon Osborn 1923
G. †Psittacosaurus Osborn 1923
Subor. †Stegosauria Marsh 1877
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Fm. †Stegosauridae Marsh 1880
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G. †Chialingosaurus Young 1959
G. †Craterosaurus Seeley 1874
G. †Kentrosaurus Hennig 1915
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Invalid names: Doryphorosaurus Nopcsa 1916 [synonym], Kentrurosaurus Hennig 1916 [synonym]
G. †Lexovisaurus Hoffstetter 1957
G. †Priconodon Marsh 1888
G. †Priodontosaurus Romer 1966
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Invalid names: Dacentrurus Lucas 1902 [synonym], Omosaurus Owen 1875 [synonym], Priodontognathus Seeley 1875 [synonym]
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Invalid names: Echinodon Owen 1861 [synonym]
G. †Stegosaurus Marsh 1877
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Invalid names: Diracodon Marsh 1881 [synonym], Hysirophus Cope 1878 [synonym]
Invalid names: Scelidosauridae Cope 1869 [empty]
Or. Saurischia Seeley 1888 [saurischian]
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Subor. †Sauropodomorpha Huene 1932 [sauropodomorph]
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Infraor. †Prosauropoda Huene 1920 [prosauropod]
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Fm. †Plateosauridae Marsh 1895 [plateosaurid]
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G. †Herrerasaurus Reig 1963
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Invalid names: Ischisaurus Reig 1963 [synonym]
G. †Lufengosaurus Young 1940
G. †Plateosaurus Meyer 1837
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Invalid names: Dimodosaurus Pidancet and Chopard 1862 [synonym], Platysaurus Agassiz 1846 [synonym], Sellosaurus Huene 1905 [synonym]
G. †Yunnanosaurus Young 1940
Fm. †Thecodontosauridae Lydekker 1890
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G. †Aetonyx Broom 1911
G. †Arctosaurus Adams 1875
G. †Dromicosaurus Van Hoepen 1920
G. †Gryponyx Broom 1911
G. †Gryposaurus Broom 1911
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Invalid names: Aristosaurus Van Hoepen 1920 [synonym], Hortalotarsus Seeley 1894 [synonym]
G. †Massospondylus Owen 1854
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Invalid names: Leptospondylus Owen 1854 [synonym], Pachyspondylus Owen 1854 [synonym]
G. †Spondylosoma Huene 1942
G. †Thecodontosaurus Riley and Stutchbury 1836
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Invalid names: Anchisaurus Marsh 1885 [synonym]
G. †Yaleosaurus Huene 1932
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Invalid names: Amphisaurus Marsh 1882 [synonym], Megadactylus Hitchcock 1865 [synonym]
Invalid names: Gryponychidae Huene 1932 [synonym]
Invalid names: Melanorosauridae Huene 1929 [empty]
Infraor. †Sauropoda Marsh 1878 [sauropod]
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Fm. †Brachiosauridae Riggs 1904 [brachiosaurid]
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G. †Amygdalodon Cabrera 1947
G. †Apatosaurus Marsh 1877
G. †Astrodon Johnston 1859
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Invalid names: Pleurocoelus Marsh 1888 [synonym]
G. †Austrosaurus Longman 1933
G. †Bothriospondylus Owen 1875
G. †Brachiosaurus Riggs 1903
G. †Camarasaurus Cope 1877
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Invalid names: Morosaurus Marsh 1878 [synonym], Uintasaurus Holland 1919 [synonym]
G. †Cetiosaurus Owen 1841
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Invalid names: Cardiodon Owen 1841 [synonym], Cetiosauriscus Huene 1927 [synonym]
G. †Dystrophaeus Cope 1877
G. †Elosaurus Peterson and Gilmore 1902
G. †Haplocanthosaurus Hatcher 1903
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Invalid names: Haplocanthus Hatcher 1903 [synonym]
G. †Omeisaurus Young 1939
G. †Parrosaurus Gilmore 1945
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Invalid names: Neosaurus Gilmore and Stewart 1945 [synonym]
G. †Pelorosaurus Mantell 1850
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Invalid names: Caulodon Cope 1877 [synonym], Chondrosteosaurus Owen 1876 [synonym], Dinodocus Owen 1884 [synonym], Eucamerotus Hulke 1871 [synonym], Gigantosaurus Seeley 1869 [synonym], Hoplosaurus Seeley 1881 [synonym], Ischyrosaurus Hulke 1874 [synonym], Morinosaurus Sauvage 1874 [synonym], Neosodon de la Moussaye 1884 [synonym], Oplosaurus Gervais 1852 [synonym], Ornithopsis Seeley 1870 [synonym]
G. †Rhoetosaurus Longman 1926
G. †Tienshanosaurus Young 1937
G. †Epantherias Cope 1878
G. †Kuangyuanpus Young 1943
G. †Microcoelus Lydekker 1893
G. †Microsaurus Hatcher 1900
G. †Sanpasaurus Young 1944
G. †Symphyrophus Cope 1878
Fm. †Titanosauridae Lydekker 1885 [titanosaurid]
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G. †Aegyptosaurus Stromer 1932
G. †Aepisaurus Gervais 1852
G. †Alamosaurus Gilmore 1922
G. †Algoasaurus Broom 1904 [Algoa lizard]
G. †Amphicoelias Cope 1877
G. †Antarctosaurus Huene 1927
G. †Argyrosaurus Lydekker 1893
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Invalid names: Campylodon Huene 1927 [synonym]
G. †Asiatosaurus Osborn 1924
G. †Barosaurus Marsh 1890
G. †Brontosaurus Marsh 1879
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Invalid names: Atlantosaurus Marsh 1877 [synonym]
G. †Chiayusaurus Bohlin 1953
G. †Dicraeosaurus Janensch 1914
G. †Diplodocus Marsh 1878
G. †Hypselosaurus Matheron 1869
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Invalid names: Magyarosaurus Huene 1932 [synonym]
G. †Laplatasaurus Huene 1927
G. †Macrurosaurus Seeley 1869
G. †Mamenchisaurus Young 1954
G. †Mongolosaurus Gilmore 1933
G. †Rebbachisaurus Lavocat 1954
G. †Succinodon Huene 1941
G. †Titanosaurus Lydekker 1877
G. †Tornieria Sternfeld 1911
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Invalid names: Gigantosaurus Fraas 1908 [synonym]
Invalid names: Cetiosauria Seeley 1874 [synonym]
Subor. Theropoda Marsh 1881 [theropod]
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G. †Ammosaurus Marsh 1891
Infraor. †Carnosauria Huene 1920 [carnosaur]
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Fm. †Megalosauridae Fitzinger 1843
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G. †Allosaurus Marsh 1877
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Invalid names: Antrodemus Leidy 1873 [synonym], Creosaurus Marsh 1878 [synonym], Labrosaurus Marsh 1879 [synonym]
G. †Dryptosaurus Marsh 1877
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Invalid names: Laelaps Cope 1866 [synonym]
G. †Embasaurus Riabinin 1931
G. †Erectopus Huene 1923
G. †Eustreptospondylus Walker 1964
G. †Megalosaurus Parkinson 1822
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Invalid names: Aggiosaurus Ambayrac 1913 [synonym], Iliosuchus Huene 1932 [synonym], Magnosaurus Huene 1932 [synonym], Nuthetes Owen 1854 [synonym], Poecilopleuron Eudes-Deslongchamps 1837 [synonym]
G. †Metriacanthosaurus Walker 1964
Fm. †Ornithosuchidae Huene 1908
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G. †Clarenceia Brink 1959
G. †Ornithosuchus Newton 1894
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Invalid names: Dasygnathoides Kuhn 1961 [synonym], Dasygnathus Huxley 1877 [synonym]
Fm. †Poposauridae Nopcsa 1923
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G. †Poposaurus Mehl 1915
Fm. †Spinosauridae Stromer 1915
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G. †Acrocanthosaurus Stovall and Langston, Jr. 1950
G. †Altispinax Huene 1923
G. †Spinosaurus Stromer 1915
Fm. †Tyrannosauridae Osborn 1906 [tyrannosaurid]
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G. †Albertosaurus Osborn 1905 [Alberta lizard]
G. †Alectrosaurus Gilmore 1933
G. †Chingkankonsaurus Young 1958
G. †Genyodectes Woodward 1901
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Invalid names: Clasmosaurus Ameghino 1898 [synonym], Loncosaurus Ameghino 1899 [synonym]
G. †Gorgosaurus Lambe 1914
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Invalid names: Aublysodon Leidy 1868 [synonym], Deinodon Leidy 1856 [synonym], Teinurosaurus Nopcsa 1928 [synonym]
G. †Majungasaurus Lavocat 1955
G. †Orthogoniosaurus Das-Gupta 1930
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Invalid names: Indosaurus Huene 1933 [synonym], Indosuchus Huene 1933 [synonym]
G. †Prodeinodon Osborn 1924
G. †Szechusanosaurus Young 1942
G. †Tarbosaurus Maleev 1955
G. †Tyrannosaurus Osborn 1905 [tyrant lizard]
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Invalid names: Dynamosaurus Osborn 1905 [synonym], Manospondylus Cope 1892 [synonym]
Invalid names: Deinodontidae Brown 1914 [synonym]
G. †Cladeiodon Owen 1841
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Invalid names: Cladyodon Owen 1841 [misspelling], Kladeisteriodon Owen 1841 [misspelling], Smilodon Plieninger 1846 [synonym]
Infraor. Coelurosauria Huene 1914 [coelurosaur]
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Fm. †Caenagnathidae Sternberg 1940
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G. †Caenagnathus Sternberg 1940
Fm. †Coeluridae Marsh 1881 [coelurid]
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G. †Agrosaurus Seeley 1891
G. †Aristosuchus Seeley 1887
G. †Brasileosaurus Huene 1931
G. †Calamospondylus Lydekker 1889
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Invalid names: Calamosaurus Lydekker 1891 [synonym]
G. †Caudocoelus Huene 1932
G. †Coelosaurus Leidy 1865
G. †Coeluroides Huene 1933
G. †Coelurus Marsh 1879
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Invalid names: Ornitholestes Osborn 1903 [synonym]
G. †Compsognathus Wagner 1861 [elegant jaw]
G. †Compsosuchus Huene 1933
G. †Dromaeosaurus Matthew and Brown 1922
G. †Elaphrosaurus Janensch 1920
G. †Hallopus Marsh 1881
G. †Jubbulpuria Huene 1933
G. †Laevisuchus Huene 1933
G. †Paronychodon Cope 1876
G. †Saurornithoides Osborn 1924
G. †Sinocoelurus Young 1942
G. †Thecocoelurus Huene 1923
G. †Thecospondylus Seeley 1882
G. †Troodon Leidy 1856
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Invalid names: Polyodontosaurus Gilmore 1932 [synonym]
G. †Velociraptor Osborn 1924
G. †Walgettosuchus Huene 1932
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Invalid names: Fulgurotherium Huene 1932 [synonym], Rapator Huene 1932 [synonym]
Invalid names: Coelurosauridae Cope 1882 [synonym], Compsognathidae Cope 1871 [synonym]
Fm. †Ornithomimidae Marsh 1890 [ornithomimid]
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G. †Betasuchus Huene 1932
G. †Chirostenotes Gilmore 1924
G. †Macrophalangia Sternberg 1932
G. †Ornithomimoides Huene 1933
G. †Ornithomimus Marsh 1890
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Invalid names: Struthiomimus Osborn 1916 [synonym]
G. †Oviraptor Osborn 1924
Invalid names: Procompsognathidae Huene 1929 [empty], Segisauridae Camp 1936 [empty]
G. †Gresslyosaurus Rütimeyer 1856 [Gressly's lizard]
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Invalid names: Dinosaurus Rütimeyer 1856 [synonym], Pachysauriscus Kuhn 1959 [synonym], Pachysaurops Huene 1959 [synonym], Pachysaurus Huene 1905 [synonym], Picrodon Seeley 1898 [synonym]
G. †Palaeosauriscus Kuhn 1959
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Invalid names: Palaeosaurus Riley and Stutchbury 1836 [synonym]
G. †Pneumatoarthrus Cope 1870
G. †Stenonychosaurus Sternberg 1932
G. †Tichosteus Cope 1877
G. †Zapsalis Cope 1876
G. †Zatomus Cope 1871
Subor. †Sauropoda Marsh 1878 [sauropod]
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Invalid names: Opisthocoelia Owen 1859 [synonym]
G. †Crymocetus Romer 1966
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Invalid names: Gymocetus Romer 1966 [misspelling]