S

Sacisaurus Ferigolo and Langer, 2006
    type species: S. agudoensis Ferigolo and Langer, 2006
Sahaliyania Godefroit, Hai S., Yu T., and Lauters, 2008
    type species: S. elunchunorum Godefroit et al., 2008
Saichania Maryanska, 1977
    type species: S. chulsanensis Maryanska, 1977
Saltasaurus Bonaparte and Powell, 1980
    type species: S. loricatus Bonaparte and Powell, 1980
    other species: S. australis (Lydekker, 1893 (originally Titanosaurus))=Neuquensaurus australis
                         S. robustus (Huene, 1929 (originally Titanosaurus))=?S. loricatus
Saltopus Huene, 1910
    type species: S. elginensis Huene, 1910
"Saltriosaurus" (N.N.) Dal Sasso, 2000=informally-named EJ Italian theropod
"Sanchusaurus" (N.N.) Hisa, 1988=informally-named EK Japanese ornithomimosaurian
"Sanghonghesaurus" (N.N.) Zhao, 1983=Tianchiasaurus
Sanjuansaurus Alcober and Martinez, 2010
    type species: S. gordilloi Alcober and Martinez, 2010
Sanpasaurus (N.D.) Yang, 1946
    type species: S. yaoi (N.D.) Yang, 1946
Santanaraptor Kellner, 1999
    type species: S. placidus Kellner, 1999
Sarahsaurus Rowe, Sues, and Reisz, 2010
    type species: S. aurifontanalis Rowe et al., 2010
Sarcolestes Lydekker, 1893
    type species: S. leedsi Lydekker, 1893
Sarcosaurus (N.D.) Andrews, 1921
    type species: S. woodi (N.D.) Andrew, 1921
    other species: "S." andrewsi (N.D.) Huene, 1932>Neotheropoda incertae sedis
Saturnalia Langer, Abdala, Richter, and Benton, 1999
    type species: S. tupiniquim Langer et al., 1999
"Sauraechinodon" (N.N.) Falconer, 1861=Echinodon
"Saurocephalus" monasterii (N.D. or N.N.) Münster, 1846>Theropoda incertae sedis    
Saurolophus Brown, 1912
    type species: S. osborni Brown, 1912
    other species: S. angustirostris Rozhdestvensky, 1952
                          S. morrisi Prieto-Márquez and Wagner, 2011
                         "S." kryschtofovici (N.D.) Riabinin, 1930>Hadrosauridae incertae sedis
Sauropelta Ostrom, 1970
    type species: S. edwardsorum Ostrom, 1970
Saurophaganax Chure, 1995
   type species: S. maximus Chure, 1995
"Saurophagus" (N.N.) Stovall vide Ray, 1941/Swainson, 1831=Saurophaganax
   "type species": "S. maximus" (N.N.) Stovall vide Ray, 1941=Saurophaganax maximus
Sauroplites (N.D.) Bohlin, 1953
    type species: S. scutiger (N.D.) Bohlin, 1953
Sauroposeidon Wedel, Cifelli, and Sanders, 2000
    type species: S. proteles Wedel, Cifelli, and Sanders, 2000
Saurornithoides Osborn, 1924
    type species: S. mongoliensis Osborn, 1924
    other species: S. asiamericanus (N.D.) (Nesov, 1985 (originally Troodon))="Troodon" asiamericanus
                          S. inequalis (Sternberg, 1932 (originally Stenonychosaurus))=Troodon formosus
                          S. isfarensis (N.D.) (Nesov, 1995 (originally Troodon))="Troodon" isfarensis
                          S. junior Barsbold, 1974=Zanabazar junior
Saurornitholestes Sues, 1978
    type species: S. langstoni Sues, 1978
    other species: S. robustus Sullivan, 2006
Scansoriopteryx Czerkas and Xu, 2002
    type species: S. heilmanni, Czerkas and Xu, 2002
Scelidosaurus Owen, 1860
    type species: S. harrisoni Owen, 1861
    other species: S. oehleri (N.D.) (Simmons, 1965 (originally Tatisaurus))=Tatisaurus oehleri
Scipionyx Sasso and Signore, 1998
    type species: S. samniticus Sasso and Signore, 1998
Scolosaurus Nopcsa, 1928
   type species: S. cutleri Nopcsa, 1928
"Scrotum" (pre-Linnean name) Brookes, 1763=some kind of megalosaur-like basal tetanuran
   type species: S. humanum (pre-Linnean-name) Brookes, 1763
Scutellosaurus Colbert, 1981
    type species: S. lawleri Colbert, 1981
Secernosaurus Brett-Surman, 1979
    type species: S. koernei Brett-Surman, 1979
Segisaurus Camp, 1936
    type species: S. halli Camp, 1936
Segnosaurus Perle, 1979
    type species: S. galbinensis Perle, 1979
    other species: S. zheziangensis (N.D.) (Dong, 1979 (originally Chilantaisaurus))="C." zheziangensis
Seismosaurus Gillette, 1991=Diplodocus
    type species: S. hallorum Gillette, 1991=D. longus
Seitaad Sertich and Loewen, 2010
    type species: S. ruessi Sertich and Loewen, 2010
Sellacoxa Carpenter and Ishida, 2010
    type species: S. pauli Carpenter and Ishida, 2010
Sellosaurus Huene, 1907-08=Plateosaurus
    type species: S. gracilis Huene, 1907-08=Plateosaurus gracilis
    other species: S. fraasi Huene, 1907-08=Efraasia minor
Serendipaceratops Rich and Vickers-Rich, 2003
    type species: S. arthurcclarkei Rich and Vickers-Rich, 2003 
Shamosaurus Tumanov, 1983
    type species: S. scutatus Tumanov, 1983
Shanag Turner, Hwang, and Norell, 2007
    type species: S. ashile Turner et al., 2007
Shanshanosaurus Dong, 1977=Tarbosaurus
    type species: S. huoyanshanensis Dong, 1977=Tarbosaurus ?bataar
Shantungosaurus Hu, 1973
   type species: S. giganteus Hu, 1973
Shanxia Barrett, You, Upchurch, and Burton, 1998
    type species: S. tianzhenensis Barrett et al., 1998
Shanyangosaurus Xue, Zhang, and Bi, 1996
    type species: S. niupanggouensis Xue et al., 1996
Shaochilong Brusatte, Benson, Chure, X. Xu, Sullivan, and Hone, 2009
    type species: S. maortuensis (Hu, 1964 (originally Chilantaisaurus maortuensis))
Shenzhousaurus Ji Q., Norell, Makovicky, Gao, Ji.S., and Yuan, 2003
    type species: S. orientalis Ji Q., et al., 2003
Shidaisaurus Wu X., Currie, Dong Z., Pan S., and Wang T., 2009
    type species: S. jinae Wu X. et al., 2009
Shixinggia Lü J. and Zhang, 2005
    type species: S. oblita Lü J. and Zhang, 2005
Shuangmiaosaurus You, Ji Q., Li J., and Li Y., 2003
    type species: S. gilmorei You et. al., 2003
Shunosaurus Dong, Zhou, and Zhang, 1983
    type species: S. lii Dong et al., 1983
    other species: "S. ziliujingensis" (N.N.) Anonymous, 1986
"Shuosaurus" (N.N.) Chou, 1979=Shunosaurus
Shuvuuia Chiappe, Norell, and Clark, 1998
    type species: S. deserti Chiappe et al., 1998
Siamodon Buffetaut and Suteethorn, 2011
    type species: S. nimngami Buffetaut and Suteethorn, 2011
Siamosaurus (N.D.) Buffetaut and Ingavat, 1986
    type species: S. suteethorni (N.D.) Buffetaut and Ingavat, 1986
Siamotyrannus Buffetaut, Suteethorn, and Tong, 1996
    type species: S. isanensis Buffetaut et al., 1996
Sigilmassasaurus Russell, 1996
   type species: S. brevicollis Russell, 1996
Silesaurus Dzik, 2003
    type species: S. opolensis Dzik, 2003
Siluosaurus Dong, 1997
    type species: S. zhangqiani Dong, 1997
Silvisaurus Eaton, 1960
    type species: S. condrayi Eaton, 1960
Similicaudipteryx He T., Wang X.-L., and Zhou Z.-H., 2008
    type species: S. yixianensis He T. et al., 2008
Sinocalliopteryx Ji S., Ji Q., Lü J., and Yuan C., 2007
    type species: S. gigas Ji S. et al., 2007
Sinoceratops Xu X., Wang K.-B., Zhao X.-J., and Li D.-J., 2010
    type species: S. zhuchengensis Xu X. et al., 2010
Sinocoelurus (N.D.) Yang, 1942
    type species: S. fragilis (N.D.) Yang, 1942
"Sinopliosaurus" fusuiensis (N.D.) Hou, Yeh, and Zhao, 1975
Sinornithoides Russell and Dong, 1993
    type species: S. youngi Russell and Dong, 1993
Sinornithomimus Kobayashi and Lü, 2003
    type species: S. dongi Kobayashi and Lü, 2003
Sinornithosaurus Xu, Wang, and Wu, 1999
    type species: S. millenii Xu et al., 1999
    other species: S. haoianus Liu J., Ji S., Tang F., and Gao C., 2004
Sinosauropteryx Ji Q. and Ji S., 1996
    type species: S. prima Ji Q. and Ji S., 1996
Sinosaurus (N.D.) Yang, 1948
    type species: S. triassicus (N.D.) Yang, 1948
    other species: "S. shawanensis" (N.N.) Yang vide Anonymous, 1979=?S. triassicus
Sinotyrannus Ji. Q., Ji S., and Zhang L., 2009
    type species: S. kazuoensis Ji. Q. et al., 2009
Sinovenator Xu, Norell, Wang, Makovicky, and Wu, 2002
    type species: S. changiae Xu et al., 2002
Sinraptor Currie and Zhao, 1994
    type species: S. dongi Currie and Zhao, 1994
    other species: S. hepingensis (Gao, 1992 (originally Yangchuanosaurus))
Sinusonasus Xu and Wan, 2004
    type species: S. magnodens Xu and Wan, 2004
Skorpiovenator Canale, Scanferla, Agnolin, and Novas, 2008
    type species: S. bustingorryi Canale et al., 2008
Smilodon Plieninger, 1846/Lund, 1842=nondinosaurian on the whole (and renamed Zanclodon), but see below
   "type species": "S." laevis (N.D.) Plieninger, 1846=nondinosaurian, although possibly chimeric with Plateosaurus material
    other species: "S." crenatus (N.D.) Plieninger, 1846=nondinosaurian
Sonidosaurus Xu, Zhang X., Tan Q., Zhao X., and Tan L., 2006
    type species: S. saihangaobiensis Xu et al., 2006
Sonorasaurus (?N.D.) Ratkevich, 1998
    type species: S. thompsoni (?N.D.) Ratkevich, 1998
Sphaerotholus Williamson and Carr, 2002
    type species: S. goodwini Williamson and Carr, 2002
    other species: S. buchholtzae Williamson and Carr, 2002
Sphenospondylus (N.D.) Seeley, 1882
   type species: S. gracilis (N.D.) Lydekker, 1888
Spinophorosaurus Remes, Ortega, Fierro, Joger, U., Kosma, Marín Ferrer, Chiappe, Dantas, Escaso, Gasulla, López, Pomares, Ribeiro, Sanz, Tent-Manclús, Faust, Joger, H., Joger, J., Krüger, Mudroch, Rabe, Ritter, Sommer, Ide, and Maga, 2009
    type species: S. nigerensis Remes et al., 2009
Spinops Farke, Ryan, Barrett, Tanke, Braman, Loewen, and Graham, 2011
    type species: S. sternbergorum Farke et al., 2011
Spinosaurus Stromer, 1915
    type species: S. aegyptiacus Stromer, 1915
    other species: S. maroccanus Russell, 1996
Spinostropheus Sereno, Wilson, and Conrad, 2004
    type species: S. gautieri (Lapparent, 1960 (originally Elaphrosaurus)) 
Spondylosoma (N.D.) Huene, 1942
    type species: S. absconditum (N.D.) Huene, 1942
Staurikosaurus Colbert, 1970
    type species: S. pricei Colbert, 1970
Stegoceras Lambe, 1902
    type species: S. validum Lambe, 1918
    other species: S. novomexicanum Jasinski and Sullivan, 2011
                         S. bexelli (Bohlin, 1953 (originally Troodon))="Troodon" bexelli
                         S. browni (N.D.) Wall and Galton, 1979=S. validum
                         S. edmontonense (N.D.) (Brown and Schlaikjer, 1943 (originally Troodon))="T." edmontonensis
                         S. lambei Sternberg, 1945=Colepiocephale lambei
                         S. sternbergi (Brown and Schlaikjer, 1943 (originally Troodon))=S. ?validum
                         S. validus (Gilmore, 1924 (originally Troodon))=S. validum
                         "S." breve Lambe, 1918>Pachycephalosauridae incertae sedis
Stegopelta Williston, 1905
   type species: S. landerensis Williston, 1905
Stegosaurides (N.D.) Bohlin, 1953
    type species: S. excavatus (N.D.) Bohlin, 1953
Stegosaurus Marsh, 1877
    type species: S. armatus Marsh, 1877
    other species: S. stenops Marsh, 1887
                         S. ungulatus Marsh, 1879
                         S. discursus (N.D.) (Cope, 1878 (originally Hypsirophus))=Hypsirophus discursus
                         S. duplex (N.D.) Marsh, 1887=S. ungulatus                        
                         S. laticeps (Marsh, 1881 (originally Diracodon))=S. stenops
                         S. marshi Lucas, 1901=Hoplitosaurus marshi
                         S. priscus Nopcsa, 1911=Loricatosaurus priscus
                         "S. affinis" (N.N.) Marsh, 1881>Stegosauria incertae sedis
                         "S." longispinus (N.D.) Gilmore, 1914>Stegosauria incertae sedis
                         "S." madagascariensis (N.D.) Piveteau, 1926>?Dinosauromorpha incertae sedis 
                         "S." sulcatus (N.D.) Marsh, 1887>Stegosauria incertae sedis
"Steneodactylus" (N.N.)=Chirostenotes
   "type species": "S. pergracilis" (N.N.)=Chirostenotes pergracilis
Stenonychosaurus Sternberg, 1932=Troodon
   type species: S. inequalis Sternberg, 1932=Troodon formosus
Stenopelix Meyer, 1857
    type species: S. valdensis Meyer, 1857
Stenotholus Giffin, Gabriel, and Johnson, 1987=Pachycephalosaurus
   type species: S. kohlerorum Giffin et al., 1987=Pachycephalosaurus wyomingensis
Stephanosaurus (N.D.) Lambe, 1914="Trachodon" and Lambeosaurus
    type species: S. marginatus (N.D.) (Lambe, 1902 (originally Trachodon))="Trachodon" marginatus and Lambeosaurus lambei
Stereocephalus Lambe, 1902/Arribalzaga, 1884=Euoplocephalus
   "type species": "S." tutus Lambe, 1902=Euoplocephalus tutus
Sterrholophus Marsh, 1891=Triceratops
   type species: S. flabellatus (Marsh, 1889 (originally Triceratops))=Triceratops horridus
Stokesosaurus Madsen, 1974
    type species: S. clevelandi Madsen, 1974
    other species: S. langhami Benson, 2008
Stormbergia Butler, 2005
    type species: S. dangershoeki Butler, 2005
Strenusaurus Bonaparte, 1969=Riojasaurus
   type species: S. procerus Bonaparte, 1969=Riojasaurus incertus
Streptospondylus Meyer, 1832
    type species: S. altdorfensis Meyer, 1832
    other species: S. grandis Hulke, 1879=possible typographic error
                         S. major (N.D.) Owen, 1842=iguanodontian spare parts
                         S. meyeri (N.D.) Owen, 1854=dinosaurian spare parts
                         S. recentior (N.D.) Owen, 1851=S. major
                         S. rostromajor (N.D.) (Owen, 1842 (originally Steneosaurus))=nondinosaurian
                         "S." cuvieri (N.D.) Owen, 1842>Tetanurae incertae sedis
Struthiomimus Osborn, 1917
    type species: S. altus (Lambe, 1902 (originally Ornithomimus))
    other species: S. brevitertius Parks, 1926=Dromiceiomimus brevitertius
                         S. currelli Parks, 1933=D. brevitertius
                         S. ingens Parks, 1933=D. brevitertius
                         S. samueli Parks, 1928=D. samueli
Struthiosaurus Bunzel, 1871
    type species: S. austriacus Bunzel, 1871
    other species: S. languedocensis Garcia and Suberbiola, 2003
                         S. transylvanicus Nopcsa, 1915
                         S. lepidophorus (N.D.) (Seeley, 1881 (originally Crataeomus))=?S. transylvanicus
                         S. ludgunensis (N.D.) (Nopcsa, 1929 (originally Rhodanosaurus))=Rhodanosaurus ludgunensis
                         S. noricus (N.D.) (Nopcsa, 1918 (originally Leipsanosaurus))=S. austriacus
Stygimoloch Galton and Sues, 1983=Pachycephalosaurus
    type species: S. spinifer Galton and Sues, 1983=Pachycephalosaurus wyomingensis
Stygivenator Olshevsky, 1995=Tyrannosaurus
    type species: S. molnari (Paul, 1988 (originally Aublysodon))=Tyrannosaurus rex
Styracosaurus Lambe, 1913
    type species: S. albertensis Lambe, 1913
    other species: S. apertus (Lambe, 1904 (originally Centrosaurus))=Centrosaurus apertus
                         "S. borealis" (N.N.) Brown vide Olshevsky, 1992=S. albertensis
                         "S. makeli" (N.N.) Czerkas and Czerkas, 1990=Einiosaurus procurvicornis
                         S. ovatus Gilmore, 1930=Rubeosaurus ovatus
                         S. parksi Brown and Schlaikjer, 1937=S. albertensis
Suchomimus Sereno, Beck, Dutheil, Gado, Larsson, Lyon, Marcot, Rauhut, Sadleir, Sider, Varricchio, G. Wilson, and J. Wilson, 1998=?Baryonyx
    type species: S. tenerensis Sereno et al., 1998=?B. tenerensis
Suchosaurus Owen, 1842
    type species: S. cultridens (Owen, 1841 (originally Crocodilus))
    other species: S. girardi Sauvage, 1897-98
"Sugiyamasaurus" (N.N.) Lambert, 1990
Sulaimanisaurus Malkani, 2006
    type species: S. gingerichi Malkani, 2006
Supersaurus Jensen, 1985
    type species: S. vivianae Jensen, 1985
Suuwassea Harris and Dodson, 2004
    type species: S. emilieae Harris and Dodson, 2004
Suzhousaurus Li D., Peng C., You H., Lamanna, Harris, Lacovata, and Zhang J., 2007
    type species: S. megatherioides Li D. et al., 2007
Symphyrophus (N.D.) Cope, 1878
    type species: S. musculosus (N.D.) Cope, 1878
Syngonosaurus (N.D.) Seeley, 1879="Acanthopholis"
   type species: S. macrocercus (N.D.) (Seeley, 1869 (originally Acanthopholis))="Acanthopholis" macrocercus
Syntarsus Raath, 1969/Fairmaire, 1869=Coelophysis
    "type species": S. rhodesiensis Raath, 1969=C. rhodesiensis
    other species: S. kayentakatae Rowe, 1989="S." kayentakatae
                          S. colberti (N.O.) (Hunt and Lucas, 1991 (originally Rioarribosaurus))=Coelophysis bauri
Syrmosaurus Maleev, 1952=Pinacosaurus
   type species: S. viminicaudus Maleev, 1952=Pinacosaurus grangeri
   other species: S. disparoserratus Maleev, 1952=Talarurus plicatospineus
Szechuanosaurus (N.D.) Yang, 1942
    type species: S. campi (N.D.) Yang, 1942
    other species: "S. yandonensis" (N.N.) Dong, Cheng, Li, and Zhou, 1978>Tetanurae incertae sedis
                          "S." zigongensis Gao, 1993>Tetanurae incertae sedis