A

Abelisaurus Bonaparte and Novas, 1985
    type species: A. comahuensis Bonaparte and Novas, 1985
Abrictosaurus Hopson, 1975
    type species: A. consors (Thulborn, 1974 (originally Lycorhinus))
Abrosaurus Ouyang, 1989
    type species: A. dongpoi Ouyang, 1989
    other species: "A. gigantorhinus" (N.N.) Ouyang, 1986 vide Zhang and Li, 1996=?A. dongpoi
Acanthopholis (N.D.) Huxley, 1867
    type species:  A. horridus (N.D.) Huxley, 1867
    other species: "A. hughesii" (N.N.) Seeley vide Pereda-Suberbiola and Barrett, 1998 (museum label for composite remains) 
                         "A. keepingi" (N.N.) Seeley vide Pereda-Suberbiola and Barrett, 1998 (museum label for composite remains)
                         A. tanyspondylus (N.D.) (Seeley, 1878 (originally Eucercosaurus))= Eucercosaurus tanyspondylus
                         "A." eucercus (N.D.) Seeley, 1869>?Ankylosauria incertae sedis
                         "A." macrocercus (N.D.) Seeley, 1869>?Genasauria incertae sedis
                         "A." platypus (N.D.) Seeley, 1869>Dinosauria incertae sedis
                         "A." stereocercus (N.D.) Seeley, 1869>?Genasauria incertae sedis                          
Achelousaurus Sampson, 1995
    type species: A. horneri Sampson, 1995
Achillesaurus Martinelli and Vera, 2007
    type species: A. manazzonei Martinelli and Vera, 2007
Achillobator Perle, Norell, and Clark, 1999
    type species: A. giganticus Perle et al., 1999
Acrocanthosaurus Stovall and Langston, 1950
    type species: A. atokensis Stovall and Langston, 1950
    other species: A. altispinax Paul, 1988=Becklespinax altispinax
Adamantisaurus Santucci and Bartini, 2006
    type species: A. mezzalirai Santucci and Bartini, 2006
Adasaurus Barsbold, 1983
    type species: A. mongoliensis Barsbold, 1983
Aegyptosaurus Stromer, 1932
    type species: A. baharijensis Stromer, 1932
Aeolosaurus Powell, 1987
    type species: A. rionegrinus Powell, 1987
    other species: A. colhuehuapensis Casal, Martínez, Luna, Sciutto, and Lamanna, 2007
Aepisaurus (N.D.) Gervais, 1852
    type species: A. elephantinus (N.D.) Gervais, 1852
Aetonyx (N.D.) Broom, 1911
   type species: A. palustris (N.D.) Broom, 1911
Afrovenator Sereno, Wilson, Larsson, Dutheil, and Sues, 1994
    type species: A. abakensis Sereno et al, 1994
Agauthamas (N.D.) Cope, 1872
    type species: A. sylvestris (N.D.) Cope, 1872
    other species: A. milo (N.D.) Cope, 1874 =?Edmontosaurus regalis
Agilisaurus Peng, 1990
    type species: A. louderbacki Peng, 1990
    other species: A. multidens (He and Cai, 1983 (originally Yandusaurus))=Hexinlusaurus multidens
Agnosphitys Fraser, Padian, Walkden, and Davis, 2002
    type species: A. cromhallensis Fraser et al., 2002
Agrosaurus (N.D.) Seeley, 1891=Thecodontosaurus
    type species: A. macgillivrayi (N.D.) Seeley, 1891=Thecodontosaurus antiquus
Agujaceratops Lucas, Sullivan, and Hunt, 2006
    type species: A. mariscalensis (Lehman, 1989 (originally Chasmosaurus))
Agustinia Bonaparte, 1999
    type species: A. ligabuei (Bonaparte, 1998 (originally Augustia))
Alamosaurus Gilmore, 1922
    type species: A. sanjuanensis Gilmore, 1922
Alaskacephale Sullivan, 2006
    type species: A. gangloffi Sullivan, 2006
Albertaceratops Ryan, 2007
    type species: A. nesmoi Ryan, 2007
Albertosaurus Osborn, 1905
    type species: A. sarcophagus Osborn, 1905
    other species: A. arctunguis Parks, 1928=A. sarcophagus
                         A. grandis (N.D.) (Marsh, 1890 (originally Ornithomimus))="O." grandis
                         A. incrassatus (N.D.) (Cope, 1876 (originally Laelaps))=?Gorgosaurus libratus
                         A. lancensis (Gilmore, 1946 (originally Gorgosaurus))=Tyrannosaurus rex
                         A. libratus (Lambe, 1914 (originally Gorgosaurus)=Gorgosaurus libratus
                         A. megagracilis Paul, 1988=Tyrannosaurus rex
                         A. novojilovi (Maleev, 1955 (originally Gorgosaurus))=Tarbosaurus bataar
                         A. olseni (Gilmore, 1933 (originally Alectrosaurus))=Alectrosaurus olseni
                         A. sternbergi (Matthew and Brown, 1923 (originally Gorgosaurus))=Gorgosaurus ?libratus
                         "A." periculosus (N.D.) Riabinin, 1930>Tyrannosauridae incertae sedis
Alectrosaurus Gilmore, 1933
    type species: A. olseni Gilmore, 1933
Aletopelta Ford and Kirkland, 2001
    type species: A. coombsi Ford and Kirkland, 2001
Algoasaurus (N.D.) Broom, 1904
    type species: A. bauri (N.D.) Broom, 1904
Alioramus Kurzanov, 1976
    type species: A. remotus Kurzanov, 1976
Aliwalia Galton, 1985=Eucnemesaurus
    type species: A. rex Galton, 1985=Eucnemesaurus fortis
Allosaurus Marsh, 1877
    type species: A. fragilis Marsh, 1877
    other species: A. europaeus Mateus, Walen, and Telles-Antunes, 2006                          
                          A. amplexus (Cope, 1878 (originally Epanterias))=A. fragilis
                          A. atrox (Marsh, 1878 (originally Creosaurus))=A. fragilis
                          A. ferox (N.D.) (Marsh, 1884 (originally Labrosaurus)=A.fragilis
                          A. ferox Marsh, 1896=A. fragilis
                          A. lucaris (N.D.) Marsh, 1878=A. fragilis
                          A. maximus (Chure, 1995 (originally Saurophaganax))=Saurophaganax maximus
                         "A. maximus" (N.N.) (Stovall vide Ray, 1941 (originally "Saurophagus"))=Saurophaganax maximus
                          A. meriani (N.D.) (Greppin, 1870 (originally Megalosaurus))=?Ceratosaurus sp.
                          A. potens (N.D.) (Lull, 1911 (originally Creosaurus))="Creosaurus" potens
                          A. stechowi (N.D.) (Janensch, 1925 (originally Labrosaurus))=?Ceratosaurus sp.
                          A. trihedrodon (N.D.) (Cope, 1877 (originally Laelaps))=A. ?fragilis
                          A. valens (N.D.) (Leidy, 1870 (originally Poicilopleuron [sic] (Poekilopleuron)))= "P." valens
                         "A. whitei" (N.N.) Pickering, 1995=A. fragilis
                         "A." medius (N.D.) Marsh, 1888>?Coelurosauria incertae sedis
                         "A." sibiricus (N.D.) Riabinin, 1914>Theropoda incertae sedis
                         "A." tendagurensis (N.D.) Janensch, 1925>?Allosauridae incertae sedis
Alocodon (N.D.) Thulborn, 1973
    type species: A. kuehnei (N.D.) Thulborn, 1973
Altirhinus Norman, 1998
    type species A. kurzanovi Norman, 1998
Altispinax (N.D.) Huene, 1923="Megalosaurus"
    type species: A. dunkeri (N.D.) (Dames, 1884 (originally Megalosaurus))="M." dunkeri and Becklespinax altispinax
    other species: "A. lydekkeri-huenensis" (N.N.) Pickering, 1984 vide Pickering, 1995="A. lydekkerhueneorum"
                         "A. lydekkerhueneneorum" (N.N.) Pickering, 1994 vide Pickering, 1995=Beckelspinax altispinax
Alvarezsaurus Bonaparte, 1991
    type species: A. calvoi Bonaparte, 1991
Alwalkeria Chatterjee and Creisler, 1994
    type species: A. maleriensis (Chatterjee, 1987 (originally Walkeria))
Alxasaurus Russell and Dong, 1993
    type species: A. elesitaiensis Russell and Dong, 1993
Amargasaurus Salgado and Bonaparte, 1991
    type species: A. cazaui Salgado and Bonaparte, 1991
    other species: A. sattleri (Janensch, 1914 (originally Dicraeosaurus))=Dicraeosaurus sattleri
Amargatitanis Apesteguia, 2007
    type species: A. macni Apesteguia, 2007
Amazonsaurus Carvalho, Avilla, and Salgado, 2003
    type species: A. marahensis Carvalho et al., 2003
Ammosaurus Marsh, 1891=Anchisaurus
    type species: A. major (Marsh, 1889 (originally Anchisaurus))=Anchisaurus polyzelus
    other species: A. solus (Marsh, 1892 (originally Anchisaurus))=Anchisaurus polyzelus
Ampelosaurus Le Loeuff, 1995
    type species: A. atacis Le Loeuff, 1995
"Amphicoelicaudia" (N.N.) Cheng et al. 1994 vide Li, 1998=?Huabeisaurus
Amphicoelias (?N.D.) Cope, 1877
    type species: A. altus (?N.D.) Cope, 1877
    other species: A. fragillimus (N.D.) Cope, 1878
                         A. latus (N.D.) Cope, 1877=Camarasaurus supremus
Amphisaurus Marsh, 1882\Barkas, 1870=Anchisaurus
   "type species": "A." polyzelus (Hitchcock, 1865 (originally Megadactylus))=Anchisaurus polyzelus
Amtosaurus (N.D.) Kurzanov and Tumanova, 1978=?Talarurus
   type species: A. magnus (N.D.) Kurzanov and Tumanova, 1978=?Talarurus plicatospineus
   other species:  A. archibaldi Averianov, 2002=Bissektipelta archibaldi
Amurosaurus Bolotsky and Kurzanov, 1991
    type species: A. riabinini Botolsky and Kurzanov, 1991
Amygdalodon Cabrera, 1947
    type species: A. patagonicus Cabrera, 1947
Anabisetia Coria and Calvo, 2002
    type species: A. saldiviai Coria and Calvo, 2002
Anasazisaurus Hunt and Lucas, 1993=Kritosaurus
    type species: A. horneri Hunt and Lucas, 1993=K. horneri
Anatosaurus Lull and Wright, 1942=Edmontosaurus
   type species: A. annectens (Marsh, 1892 (originally Claosaurus))=Edmontosaurus annectens
   other species: A. copei Lull and Wright, 1942=?E. copei
                         A. edmontonensis (Gilmore, 1924 (originally Thespesius))=E. annectens
                         A. longiceps (N.D.) (Marsh, 1897 (originally Trachodon))=E. ?copei
                         A. saskatchewanensis (Sternberg, 1926 (originally Thespesius))=?E. annectens
Anatotitan Brett-Surman vide Chapman and Brett-Surman, 1990 =?Edmontosaurus
    type species: A. copei (Lull and Wright, 1942 (originally Anatosaurus))=?E. copei
    other species: A. longiceps (N.D.) ( Marsh, 1897 (originally Trachodon))=?E. copei
Anchiceratops Brown, 1914
    type species: A. ornatus Brown, 1914
    other species: A. longirostris Sternberg, 1929=A. ornatus
Anchisaurus Marsh, 1885
    type species: A. polyzelus (Hitchcock, 1865 (originally Megadactylus))
    other species: A. capensis (?N.D.) (Broom, 1911 (originally Gyposaurus))=Gyposaurus capensis
                          A. colurus Marsh, 1891=A. polyzelus
                          A. major Marsh, 1889=A. polyzelus
                          A. sinensis (Young, 1941 (originally Gyposaurus))="Gyposaurus" sinensis
                          A. solus Marsh, 1892=A. polyzelus
Andesaurus Calvo and Bonaparte, 1991
    type species: A. delgadoi Calvo and Bonaparte, 1991
Angaturama Kellner and Campos, 1996=?Irritator
    type species: A. limai Kellner and Campos,1996=?Irritator challengeri
Aniksosaurus Martinez and Novas, 2006
    type species: A. darwini Martinez and Novas, 2006 
Animantarx Carpenter, Kirkland, Burge, and Bird, 1999
    type species: A. ramaljonesi Carpenter et al., 1999
Ankylosaurus Brown, 1908
    type species: A. magniventris Brown, 1908
    other species: "A. acinacodens" (N.N.) Brown, ?=Euoplocephalus tutus
Anodontosaurus Sternberg, 1929=Euoplocephalus
   type species: A. lambei Sternberg, 1929=Euoplocephalus acutosquameus
Anoplosaurus Seeley, 1878
    type species: A. curtonotus Seeley, 1878
    other species: A. macrocercus (N.D.) (Seeley, 1869 (originally Acanthopholis))=A. sp.,"Acanthopholis" macrocercus
                         A. stereocercus (N.D.) (Seeley, 1869 (originally Acanthopholis))=A. major,"Acanthopholis" stereocercus
                         A. tanyspondylus (N.D.) (Seeley, 1878 (originally Eucercosaurus))=Eucercosaurus tanyspondylus
                        "A." major (N.D.) Seeley, 1878>Genasauria incertae sedis
Anserimimus Barsbold, 1988
    type species: A. planinychus Barsbold, 1988
Antarctopelta Salgado and Gasparini, 2006
    type species: A. oliveroi Salgado and Gasparini, 2006
Antarctosaurus Huene, 1929
    type species: A. wichmannianus Huene, 1929
    other species: ?A. brasiliensis Arid and Vizotto, 1972
                           A. septentrionalis Huene and Matley, 1933=Jainosaurus septentrionalis
                          "A." giganteus (N.D.) Huene, 1929>Titanosauria incertae sedis
                          "A." jaxartensis (N.D.) Riabinin, 1933>Titanosauria incertae sedis
Antetonitrus Yates and Kitching, 2003
    type species: A. ingenipes Yates and Kitching, 2003
Antrodemus (N.D.) Leidy, 1870="Poekilopleuron"
    type species: A. valens (N.D.) (Leidy, 1870 (originally Poicilopleuron [sic] (Poekilopleuron)))="P." valens
Apatodon (N.D.) Marsh, 1877 
   type species: A. mirus (N.D.) Marsh, 1877
Apatosaurus Marsh, 1877
    type species: A. ajax Marsh, 1877
    other species: A. excelsus (Marsh, 1879 (originally Brontosaurus))
                          A. louisae Holland, 1915
                          A. parvus (Peterson and Gilmore, 1902 (originally Elosaurus))
                          A. alenquerensis Lapparent and Zybszewski, 1957=Lourinhasaurus alenquerensis
                          A. amplus (Marsh, 1881 (originally Brontosaurus))=A. excelsus
                          A. grandis Marsh 1877=Camarasaurus grandis
                          A. immanis (Marsh, 1878 (originally Atlantosaurus))=A. ajax
                          A. laticollis Marsh, 1879=A. ajax
                          A. montanus (Marsh, 1877 (originally Titanosaurus))="T." montanus
                          A. yahnahpin Filla and Redman, 1994=Eobrontosaurus yahnahpin
                         "A." minimus (?N.D.) Mook, 1917>Sauropoda incertae sedis
Appalachiosaurus Carr, Williamson, and Schwimmer, 2005
    type species: A. montgomeriensis Carr et al., 2005
Aragosaurus Sanz, Buscalioni, Casanovas, and Santafé, 1987
    type species: A. ischiatus Sanz et al., 1987
Aralosaurus Rozhdestvensky, 1968
    type species: A. tuberiferus Rozhdestvensky, 1968
"Araucanoraptor" (N.N.) Novas, 1997=Neuquenraptor
    "type species": "A. argentinus" (N.N.) Novas, 1997=Neuquenraptor argentinus
Archaeoceratops Dong and Azuma, 1997
    type species: A. oshimai Dong and Azuma, 1997
Archaeodontosaurus Buffetaut, 2005
    type species: A. descouensi Buffetaut, 2005
Archaeopteryx Meyer, 1861
    type species: A. lithographica Meyer, 1861
    other species: A. siemensii Dames, 1897
                          A. bavarica Wellnhofer, 1993=A. siemensii
                          A. crassipes=A. lithographica
                          A. macrura Owen, 1862=A. lithographica
                          A. ownei Petronievics, 1917=A. lithographica
                          A. recurva Howgate, 1984=A. siemensii                          
"Archaeoraptor" (N.N.) Czerkas vide Sloan, 1999=Microraptor, Archaeovolans repatriatus (derived avian)    
    "type species": "A. liaoningensis" (N.N.) Czerkas vide Sloan, 1999
Archaeornis Petronievics vide Petronievics and Woodward, 1917=Archaeopteryx
   type species: none designated                   
Archaeornithoides Elzanowski and Wellnhofer, 1992
    type species: A. deinosauriscus Elzanowski and Wellnhofer, 1992
Archaeornithomimus Russell, 1972
    type species: A. asiaticus (Gilmore, 1933 (originally Ornithomimus))
    other species: "A." affinis (N.D.) (Gilmore, 1920 (originally Coelosaurus))="Coelosaurus" affinis
                          "A." bissektensis (N.D.) Nessov, 1995>Ornithomimidae incertae sedis
Argentinosaurus Bonaparte and Coria, 1993
    type species: A. huinculensis Bonaparte and Coria, 1993
Argyrosaurus Lydekker, 1893
    type species: A. superbus Lydekker, 1893
Aristosaurus Hoepen, 1920
   type species: A. erectus Hoepen, 1920
Aristosuchus Seeley, 1887
    type species: A. pusillus (Owen, 1876 (originally Poikilopleuron [sic](Poekilopleuron)))
   other species: A. oweni (N.D.) (Fox, 1866 (originally Calamospondylus))=Calamospondylus oweni
"Arkansaurus" (N.N.) Sattler, 1983
    "type species": "A. fridayi" (N.N.) Sattler, 1983
Arrhinoceratops Parks, 1925
    type species: A. brachyops Parks, 1925   
    other species: A. utahensis Gilmore, 1946=Torosaurus utahensis
Arstanosaurus (N.D.) Suslov and Shilin, 1982
    type species: A. akkurganensis (N.D.) Suslov and Shilin, 1982
Asiaceratops (N.D.) Nessov, Kaznyshkina, and Cherepanov, 1989
    type species: A. salsopudalis (N.D.) Nessov et al., 1989
Asiamericana (N.D.) Nessov, 1995
    type species: A. asiaticus (N.D.) Nessov, 1995
Asiatosaurus (N.D.) Osborn, 1924
    type species: A. mongoliensis (N.D.) Osborn, 1924
    other species: A. lacustris (N.D.) (Bohlin, 1953 (originally Chiayusaurus))=Chiayusaurus lacustris
                         "A." kwangshiensis (N.D.) Hou, Yeh, and Zhao, 1975>Sauropoda incertae sedis
Astrodon Johnston, 1859
    type species: A. johnstoni Leidy, 1865
    other species: A. altus (Marsh, 1888 (originally Pleurocoelus)=A. johnstoni
                         A. nanus (Marsh, 1888 (originally Pleurocoelus)=A. johnstoni
                         A. pusillus Lapparent and Zybszewski, 1957=Dacentrurus armatus
Astrodonius (N.D.) Kuhn, 1963=Astrodon
   type species: A. johnstoni (N.D.) (Leidy, 1865 (originally Astrodon))=Astrodon johnstoni
   other species: A. pusillus (Lapparent and Zybszewski, 1957 (originally Astrodon))=Dacentrurus armatus
Asylosaurus Galton, 2007
    type species: A. yalensis Galton, 2007
Atlantosaurus (N.D.) Marsh, 1877="Titanosaurus"
   type species: A. montanus (N.D.) (Marsh, 1877 (originally Titanosaurus))="T." montanus
   other species: A. immanis (N.D.) Marsh, 1878=Apatosaurus ajax
Atlasaurus Monbaron, Russell, and Taquet, 1999
    type species: A. imelakei Monbaron et al., 1999
Atlascopcosaurus Rich and Rich, 1989
    type species: A. loadsi Rich and Rich, 1989
Atrociraptor Currie and Varricchio, 2004
    type species: A. marshalli Currie and Varricchio, 2004
Aublysodon (N.D.) Leidy, 1868
    type species: A. mirandus (N.D.) Leidy, 1868
    other species: A. huoyanshanensis (Dong, 1977 (originally Shanshanosaurus))=Tarbosaurus ?bataar
                         A. molnari Paul, 1988=Tyrannosaurus rex
                        "A." amplus (N.D.) Marsh, 1892>?Tyrannosauridae incertae sedis
                        "A." cristatus (N.D.) Marsh, 1892>?Tyrannosauridae incertae sedis
                        "A." lateralis (N.D.) Cope, 1876>?Tyrannosauridae incertae sedis
Aucasaurus Coria, Chiappe, and Dingus, 2002
    type species: A. garridoi Coria, Chiappe, and Dingus, 2002
Augustia Bonaparte, 1998\Zariquiey, 1927=Agustinia
    "type species": "A." ligabuei Bonaparte, 1998=Agustinia ligabuei
Auroraceratops You, H., D. Li, Q. Ji, Lamanna, and Dodson, 2005
    type species: A. rugosus You et al., 2005
"Austroraptor" (unpublished)=Ozraptor
Australodocus Remes, 2007
    type species: A. bohetii Remes, 2007
Austrosaurus Longman 1933
    type species: A. mckillopi Longman 1933
Avaceratops Dodson, 1986
    type species: A. lammersi Dodson, 1986
Avalonia (N.D.) Seeley, 1898\Walcott, 1889=?"Zanclodon"
    "type species": A. sanfordi (N.D.) Seeley, 1898=?"Zanclodon" cambrensis
Avalonianus (N.D.) Kuhn, 1961=Avalonia
    type species: A. sanfordi (N.D.) (Seeley, 1898)=A. sanfordi
Aviatyrannis Rauhut, 2003
    type species: A. jurassica Rauhut, 2003
Avimimus Kurzanov, 1981
    type species: A. portentosus Kurzanov, 1981
Avipes (N.D.) Huene, 1932
    type species: A. dillstedtianus (N.D.) Huene, 1932