13 Aralık 2015 Pazar

11 Aralık 2015 Cuma

Cehennemden Tavuk : Anzu Wyliei

Amerikalı bilim insanları yeni bir dinozor türü keşfettiklerini açıkladı.
Anzu Wyliei adlı türün fosilleri 66 milyon yıl önce dinozorların nasıl yok olduğu ile ilgili yeni ipuçları veriyor.
Fakat bu yeni tür, dinozorların genel görünümünden biraz farklı.
Resim

Etçil Dinazor Listesi

Etçiller

  • Abelisaurus
  • Abrictosaurus
  • Acrocanthosaurus
  • Achillesaurus
  • Achillobator
  • Adasaurus

Dinozor dünyasının Pinokyo’su

Çin’in güneyinde yeni bir dinozor türü keşfedildi. Burnu diğer türlerinkinden uzun olan bu yeni türe Pinokyo Rex adını takıldı. Pinokyo Rex, avcı dinozorlar olarak bilinen Tiranozor familyasına ait.
Image
Yırtıcı ve etçil dinozor türünün boyu 9 metreyi buluyor ve boynuzu andıran uzun bir burnu var. Bir inşaat sahasında bulunan fosilin kazılarını Edinburgh Üniversitesi’nden bilim insanları yaptı. 66 milyon yaşındaki dinozorun bilimsel adı Qianzhousaurus sinensis, ama bilim insanları ona uzun burnu nedeniyle “Pinokyo” diyor.
Dr. Stev Brusatte, keşfi şöyle anlatıyor: “Pinokyo, görünüş olarak diğer tironozolardan çok farklı. Burnu çok ince ve uzun, ve üzerinde bir dizi boynuz var. Onun bir takma ada ihtiyacı olduğunu düşündük ve uzun burnu nedeniyle Pinokyo adını verdik.”
Bilim insanları Pinokyo’nun görüntüsü karikatürleri andırsa da en az diğer tironozorlar kadar tehlikeli olduğunu söylüyor.
Image
Burnu neden uzun?
“Pinokyo’nun burnunun benzer dinozor türlerinden üç kat daha uzun olmasının bir nedeni olmalı.” Bilim insanlarının görüşü bu, ancak kesin nedeni henüz bulunamadı.
Dr. Brusatte’ya göre nedeni beslenme şekliyle ilgili olabilir: “Tironozor türlerinden en bilineni heybetli ve ikonik görüntüsüyle T-Rex. Pinokyo’nun kemikleri T-Rex’e göre daha küçük. Bu onun benzer türlere göre daha hızlı bir avcı olduğunu ve farklı avlandığının göstergesi olabilir.”
Pinokyo’nun diğer tironozorlara göre daha ince olan dişleriyse, tüylü dinozorlar ve kertenkele cinsleri gibi daha küçük hayvanlarla besleniyor olabileceğini gösteriyor.
‘Uzun burunlu dinozorlar gerçekmiş’
Pinokyo’nun keşfi, son yıllarda bulunan farklı dinozor fosilleri hakkında yeni bir tartışma başlatabilir. Geçen yıllarda Moğolistan’da da hortuma benzer burunları olan iki dinozor iskeleti bulunmuştu. Bu da tironozorların daha önce bilinmeyen bir familyası olabileceğine dair kuşkuları artırdı.
Moğolistan’da bulunan fosillerin genç dinazorlara ait olması nedeniyle kesin bir çıkarımda bulunamamış olan bilim insanları için Pinokyo’nun keşfi büyük bir fırsat.
Dr. Brusatte “Bu tam da aradığımız kanıt, uzun burunlu dinozorlar gerçekmiş” diyor.
Araştırmacılara göre, Moğolistan ve Çin’de yapılan keşifler, uzun burunlu dinozorların Asya’da geniş bir alana yayıldığının da göstergesi.
Bu keşiften yola çıkarak, Asya’da Kretase yani Tebeşir dönemi olarak bilinen, günümüzden yaklaşık 142 milyon yıl önce başlamış ve yaklaşık 80 milyon yıl devam etmiş dönemde, farklı avlarla beslenen bir kaç tironozor türü yaşamış olabileceği belirtiliyor.

Dinozorlar listesi

Bu listede dinozor cinsleri kapsamlı bir şekilde listelenmiştir. Listede, geçerli olan veya henüz resmi isimlendirmesi yapılmamış 1379 cins ve alt sınıf dinozor ismi yer almıştır. Bazı isimlerin yanına aşağıdaki terminolojide belirtilen açıklamalar eklenmiştir.

A

• Aardonyx A.M. Yates, M.F. Bonnan, J. Neveling, A. Chinsamy and M.G. Blackbeard, 2009• “Abdallahsaurus G. Maier, 2003 [nomen nudum -> Giraffatitan]
• Abelisaurus J.F. Bonaparte and F.E. Novas, 1985
Abelisaurus
• Abrictosaurus J.A. Hopson, 1975
• Abrosaurus Ouyang H., 1989
• Abydosaurus Chure, Britt, Whitlock and J. A. Wilson, 2010
• Acanthopholis T.H. Huxley, 1867 [nomen dubium]
Achelousaurus S.D. Sampson, 1995
Achelousaurus
• Achillesaurus Martinelli and Vera, 2007
• Achillobator Perle, Norell and Clark, 1999
• Acracanthus W.R. Langston, 1947 vide N.J. Czaplewski, R.L. Cifelli and W.R. Langston, 1994 [nomen ex dissertatione -> Acrocanthosaurus]
• Acrocanthosaurus J.W. Stovall and W.R. Langston, 1950
Acrocanthosaurus
• Adamantisaurus Santucci and Bertini, 2006
• Adasaurus Barsbold, 1983
• Adeopapposaurus R.N. Martínez, 2009
• Aegyptosaurus E. Stromer, 1932
• Aeolosaurus J.E. Powell, 1987
• Aepisaurus P. Gervais, 1852 [nomen dubium]
• Aerosteon Sereno, R.N. Martínez, J.A. Wilson, Varricchio, Alcober and Larsson, 2008
Aerosteon 
• Aetonyx R. Broom, 1911 [JSS -> Massospondylus]
• Afrovenator Sereno, J.A. Wilson, Larsson, Dutheil and Sues, 1994
Afrovenator
• Agathaumas E.D. Cope, 1872 [nomen dubium; PSS -> Nedoceratops,Torosaurus or Triceratops]
• Agilisaurus Peng G., 1990
• Agnosphitys Fraser, Padian, Walkden and Davis, 2002
• Agrosaurus H.G. Seeley, 1891 [JSS -> Thecodontosaurus]
• Agujaceratops S.G. Lucas, R. Sullivan and Hunt, 2006
• Agustinia J.F. Bonaparte, 1999
Ahshislepelta Burns & R. Sullivan, 2011
• Airakoraptor Perle, Norell and Clark, 1999 [nomen nudum]
• Ajkaceratops Ösi, Butler and Weishampel, 2010
• Alamosaurus Gilmore, 1922
• Alashansaurus Chure, 2001 [nomen ex dissertatione]
• Alaskacephale R. Sullivan, 2006
• Albalophosaurus Ohashi and Barrett, 2009
• Albertaceratops Ryan, 2007
Albertaceratops
• Albertonykus N.R. Longrich and P.J. Currie, 2008
• Albertosaurus Osborn, 1905
Albertosaurus
• Albinykus S.J. Nesbitt, J.A. Clarke, A.H. Turner & M.A. Norell, 2011
• Alectrosaurus
 Gilmore, 1933
Alectrosaurus 
• Aletopelta Ford and Kirkland, 2001
• Algoasaurus Broom, 1904 [nomen dubium]
• Alioramus Kurzanov, 1976
Alioramus
• Aliwalia Galton, 1985 [JSS -> Eucnemesaurus]
• Allosaurus O.C. Marsh, 1877
Allosaurus 
• Alocodon Thulborn, 1973
• Altirhinus D.B. Norman, 1998
• Altispinax F. von Huene, 1923 [nomen dubium]
• Alvarezsaurus J.F. Bonaparte, 1991
• Alwalkeria Chatterjee and Creisler, 1994
• Alxasaurus D.A. Russell and Dong Z.M., 1994
Alxasaurus
• Amargasaurus Salgado and J.F. Bonaparte, 1991
Amargasaurus
• Amargatitanis Apesteguía, 2007
• Amazonsaurus Carvalho, Avilla and Salgado, 2003
• Ammosaurus O.C. Marsh, 1891
• Ampelosaurus LeLoeuff, 1995
• Amphicoelias E.D. Cope, 1877 [nomen dubium]
• Amphicoelicaudia Cheng Z., etal, 1994 vide Li K., 1998 [nomen nudum ->Huabeisaurus]
• Amphisaurus O.C. Marsh, 1882 / Barkas, 1870 -> Anchisaurus
• Amtosaurus Kurzanov and Tumanova, 1978 [nomen dubium]
• Amurosaurus Bolotsky and Kurzanov, 1991
• Amygdalodon Cabrera, 1947 [nomen dubium]
• Anabisetia R.A. Coria and Calvo, 2002
• Anasazisaurus Hunt and S.G. Lucas, 1993 [PSS –> Gryposaurus orKritosaurus]
• Anatosaurus Lull and Wright, 1942 [JSS -> Edmontosaurus]
• Anatotitan Brett-Surman vide Chapman and Brett-Surman, 1990
• Anchiceratops Brown, 1914
Anchiceratops 
• Anchiornis Xu X., Zhao Q., Norell, C. Sullivan, Hone, Erickson, Wang X.L., Han F. and Guo Y., 2009
• Anchisaurus O.C. Marsh, 1885
• Andesaurus Calvo and J.F. Bonaparte, 1991
• Angaturama Kellner and Campos, 1996 [JSS -> Irritator]
Angolatitan Mateus, Jacobs, Schulp, Polcyn, Taveres, Neto, Morais & Telles Antunes, 2011
• Angulomastacator daviesi Wagner, J.R. and T.M. Lehman, 2009
• Aniksosaurus R.D. Martínez and F.E. Novas, 2006
• Animantarx Carpenter, Kirkland, Burge and Bird, 1999
• Ankylosaurus Brown, 1908
Ankylosaurus 
• Anodontosaurus C.M. Sternberg, 1929 [JSS -> Dyoplosaurus]
• Anoplosaurus H.G. Seeley, 1879
• Anserimimus Barsbold, 1988
• Antarctopelta Salgado and Gasparini, 2006
• Antarctosaurus F. von Huene, 1929
• Antetonitrus Yates and Kitching, 2003
• Antrodemus J. Leidy, 1870 [nomen dubium; PSS -> Allosaurus]
• Apatodon O.C. Marsh, 1877 [nomen dubium; PSS -> Allosaurus]
• Apatosaurus O.C. Marsh, 1877
Apatosaurus
• Appalachiosaurus Carr, Williamson and Schwimmer, 2005
• Aragosaurus Sanz, Buscalioni, Casanovas-Cladellas (as Casanovas) and Santafe, 1987
• Aralosaurus Rozhdestvensky, 1968
• Araucanoraptor F.E. Novas, 1997 [nomen dubium -> Neuquenraptor]
• Archaeoceratops Dong Z.M. and Azuma, 1997
• Archaeodontosaurus Buffetaut, 2005
• Archaeoraptor Czerkas vide C.P. Sloan, 1999 vide Olson, 2000 [nomen rejectum (pending) -> Microraptor]
• Archaeornithoides Elzanowski and Wellnhofer, 1992
• Archaeornithomimus D.A. Russell, 1972
Arcusaurus Yates, Bonnan & Neveling, 2011
• Arenysaurus Pereda-Suberbiola, Canudo, Cruzado-Caballero, Barco, López-Martínez, Oms and Ruíz-Omeñaca, 2009
• Argentinosaurus J.F. Bonaparte and R.A. Coria, 1993
Argentinosaurus
• Argyrosaurus R. Lydekker, 1893
• Aristosaurus van Hoepen, 1920 [JSS -> Massospondylus]
• Aristosuchus H.G. Seeley, 1887 [nomen dubium]
• “Arkanosaurus” Sattler, 1983 [nomen nudum]
• Arkharavia V.R. Alifanov and Bolotsky, 2010
• Arrhinoceratops Parks, 1925
• Arstanosaurus Suslov vide Suslov and Shilin, 1982 [nomen dubium]
• Asiaceratops Nessov and Kaznyshkina vide Nessov, Kaznyshkina and Cherepanov, 1989
• Asiamericana Nessov, 1995 [nomen dubium]
• Asiatosaurus Osborn, 1924 [nomen dubium]
• Astrodon Johnston, 1859 [nomen dubium; PSS -> Pleurocoelus]
• Astrodonius Kuhn, 1961 [JOS -> Astrodon]
• Astrodontaurus C. Johnston, 1858 vide Kranz, 2004 [JOS -> Astrodon]
• Asylosaurus Galton, 2007
Atacamatitan Kellner, Rubilar-Rogers, Vargas & Suárez, 2011
• Atlantosaurus O.C. Marsh, 1877 [nomen dubium; PSS –> Apatosaurus orCamarasaurus]
• Atlasaurus Monbaron, D.A. Russell and Taquet, 1999
• Atlascopcosaurus T. Rich and Vickers-Rich (as P. Rich), 1989
• Atrociraptor P.J. Currie and Varricchio, 2004
• Atsinganosaurus G. Garcia, S. Amico, F. Fournier, E. Thouand X. Valentin, 2010
• Aublysodon J. Leidy, 1868 [nomen dubium; PSS –> Albertosaurus orDeinodon]
• Aucasaurus R.A. Coria, Chiappe and Dingus, 2002
Aucasaurus
• Augustia J.F. Bonaparte, 1998 / Zariquiey, 1927 -> Agustinia
• Auroraceratops You, Li D., Ji Q., Lamanna and Dodson, 2005
• Australodocus Remes, 2007
• Australovenator Scott A. Hocknull, Mathew A. White, Travis R. Tischler, Alex G. Cook, Naomi D. Calleja, Trish Sloan, David A. Elliott, 2009
• Austrocheirus Ezcurra, Agnolin and Novas, 2010
• Austroraptor F.E. Novas, Pol, Canale, Porfiri and Calvo, 2008
Austroraptor
• Austrosaurus Longman, 1933
• Avaceratops Dodson, 1986
• Aviatyrannis Rauhut, 2003
• Avimimus Kurzanov, 1981
Avimimus
• Avipes F. von Huene, 1932 [nomen dubium]
• Azendohsaurus Dutuit, 1972 [non-dinosaurian archosaur]

B

• Bactrosaurus Gilmore, 1933
Bactrosaurus 
• Bagaceratops Maryanska and Osmólska, 1975
• Bagaraatan Osmólska, 1996
• Bahariasaurus E. Stromer, 1934
• Bainoceratops Tereschenko and Alifanov, 2003
• Bakesaurus Zhou S., 2005 [nomen nudum]
• Balaur Z. Csiki, M. Vremir, S.L. Brusatte M.A. Norell, 2010
• Balochisaurus Malkani, 2006
• Bambiraptor Burnham, Derstler, P.J. Currie, Bakker, Zhou Z. and Ostrom, 2000
Bambiraptor
• Banji Xu X. and Han F., 2010
• Baotianmansaurus Zhang Xingliao et al, 2009
• Barapasaurus Jain, Kutty, Roy-Chowdhury and Chatterjee, 1975
• Barilium Norman, 2010
• Barosaurus O.C. Marsh, 1890
Barosaurus
• Barrosasaurus L. Salgado and R.A. Coria, 2009
• Barsboldia Maryanska and Osmólska, 1981
• Baryonyx Charig and Milner, 1986
Baryonyx
• Bashunosaurus Li K., 1998 [nomen nudum; possibly -> Datousaurus]
Basutodon von Huene, 1932* [nomen dubium; non-dinosaurian archosaur]
Batyrosaurus Godefroit, Escuillié, Bolotsky & Lauters, 2012
Batyrosaurus
• Baurutitan Kellner, Campos and Trotta, 2005
• Bayosaurus R.A. Coria, P.J. Currie and Carabajal, 2006 [nomen nudum]
• Becklespinax Olshevsky, 1991
 Becklespinax 
• “Beelemodon” Bakker, 1997 [nomen nudum]
• Beipiaosaurus Xu X., Tang Z. and Wang X.L., 1999
Beipiaosaurus
• Beishanlong Peter J. Makovicky et al, 2009
• Bellusaurus Dong Z.M., 1990
• Berberosaurus Allain, Tykoski, Aquesbi, Jalil, Monbaron, D.A. Russell and Taquet, 2007
• Betasuchus F. von Huene, 1932 [nomen dubium]
Bicentenaria Novas, Ezcurra, Agnolín, Pol & Ortíz, 2012
• Bienosaurus Dong Z.M., 2001
• Bihariosaurus Marinescu, 1989
• Bilbeyhallorum Burge, Bird, McClelland and Cicconetti, 1999 [nomen nudum -> Cedarpelta]
• Bissektipelta Parish and P.M. Barrett, 2004
• Bistahieversor T.D. Carr and T.E. Williamson, 2010
• “Blancocerosaurus” G. Maier, 2003 [nomen nudum -> Giraffatitan]
• Blikanasaurus Galton and van Heerden, 1985
• Bonatitan Martinelli and Forasiepi, 2004
• Bonitasaura Apesteguía, 2004
• Borealosaurus You, Ji Q., Lamanna, Li J. and Li Y.X., 2004
• Borogovia Osmólska, 1987
• Bothriospondylus R. Owen, 1875
• Brachiosaurus Riggs, 1903
Brachiosaurus
• Brachyceratops Gilmore, 1914
• Brachylophosaurus C.M. Sternberg, 1953
• Brachypodosaurus Chakravarti, 1934 [nomen dubium]
• Brachyrophus E.D. Cope, 1878 [JSS -> Camptosaurus]
• Brachytrachelopan Rauhut, K. Remes, R. Fechner, G. Cladera, and P. Puerta, 2005
• Bradycneme Harrison and C.A. Walker, 1975 [nomen dubium; PSS ->Elopteryx]
• Breviceratops Kurzanov, 1990
• Brohisaurus Malkani, 2003
• Brontomerus M.P. Taylor, M.J. Wedel & R.L. Cifelli, 2011
• Brontoraptor Redman, 1995 [nomen nudum]
• Brontosaurus O.C. Marsh, 1879 [JSS -> Apatosaurus]
• Bruhathkayosaurus Yadagiri and Ayyasami, 1987 [nomen dubium]
• Bugenasaura P.M. Galton, 1995 [PSS -> Thescelosaurus]
• Buitreraptor Makovicky, Apesteguía and Agnolín, 2005
• Byranjaffia Novacek, 2002 [nomen nudum -> Byronosaurus]
• Byronosaurus Norell, Makovicky and Clark, 2000
Byronosaurus 

C

• Caenagnathasia P.J. Currie, Godfrey and Nessov, 1994 (not 1993)
• Caenagnathus R.M. Sternberg, 1940
• Calamosaurus R. Lydekker, 1891 [nomen dubium]
• Calamospondylus W.D. Fox vide [Anonymous], 1866 [nomen dubium]
• Calamospondylus R. Lydekker, 1889 / W.D. Fox vide [Anonymous], 1866 ->Calamosaurus
• Callovosaurus Galton, 1980
• Camarasaurus E.D. Cope, 1877
Camarasaurus 
• Camelotia Galton, 1985
• Camposaurus Hunt, S.G. Lucas, Heckert, R. Sullivan and Lockley, 1998
• Camptonotus O.C. Marsh, 1879 / Uhler, 1864 -> Camptosaurus
• Camptosaurus O.C. Marsh, 1885
Camptosaurus
• Campylodon F. von Huene, 1929 / G. Cuvier and A. Valenciennes, 1832 ->Campylodoniscus
• Campylodoniscus Kuhn, 1961 [nomen dubium]
• “Capitalsaurus” Kranz, 1998 [nomen nudum]
• Carcharodontosaurus E. Stromer, 1931
Carcharodontosaurus
• Cardiodon R. Owen, 1841 [nomen dubium; PSS -> Cetiosaurus]
• Carnosaurus F. von Huene, 1929 [nomen nudum]
• Carnotaurus J.F. Bonaparte, 1985
Carnotaurus
• Caseosaurus Hunt, S.G. Lucas, Heckert, R. Sullivan and Lockley, 1998
• Cathartesaura Gallina and Apesteguía, 2005
• Cathetosaurus Jensen, 1988 [JSS -> Camarasaurus]
• Caudipteryx Ji Q., P.J. Currie, Norell and Ji S., 1998
Caudipteryx 
• Caudocoelus F. von Huene, 1932 [JOS -> Teinurosaurus]
• Caulodon E.D. Cope, 1877 [JSS -> Camarasaurus]
• Cedarosaurus Tidwell, Carpenter and Brooks, 1999
• Cedarpelta Carpenter, Kirkland, Burge and Bird, 2001
• Cedrorestes Gilpin, DiCroce and Carpenter, 2006
• Centrosaurus Lambe, 1904 / L.J. Fitzinger, 1843 -> Eucentrosaurus
Centrosaurus
• Cerasinops Chinnery and Horner, 2007
• Ceratonykus Alifanov and Barsbold, 2009
• Ceratops O.C. Marsh, 1888 / C.S. Rafinesque, 1815 -> Proceratops [nomen dubium]
• Ceratosaurus O.C. Marsh, 1884
Ceratosaurus
• Cetiosauriscus F. von Huene, 1927
• Cetiosaurus R. Owen, 1841
• Changchunsaurus Zan S.Q., Chen J., Jin L.Y. and Li T., 2005
• Changtusaurus Zhao X., 1983 [nomen nudum]
• Chaoyangsaurus Zhao X., Cheng Z. and Xu X., 1999
• Charonosaurus Godefroit, Zan and Jin L., 2000
• Chasmosaurus Lambe, 1914
Chasmosaurus
• Chassternbergia Bakker, 1988
• Chebsaurus Mahammed, Läng, Mami, Mekahli, Benhamou, Bouterfa, Kacemi, Chérief, Chaouati and Taquet, 2005
• Cheneosaurus Lambe, 1917 [JSS -> Hypacrosaurus]
• Chiayusaurus Bohlin, 1953 [nomen dubium]
• Chihuahuasaurus Ratkevich vide [Anonymous], 1997 [nomen nudum ->Sonorasaurus]
• Chilantaisaurus Hu S., 1964
• Chindesaurus R.A. Long and Murry, 1995
• Chingkankousaurus Yang Z.J. (as Young C.C.), 1958 [JSS -> Tarbosaurus]
• Chinshakiangosaurus Yeh, 1975 vide Dong Z.M., 1992 vide P. Upchurch, P.M. Barrett, Zhao X. and Xu X., 2007
• Chirostenotes Gilmore, 1924
Chirostenotes
• Chondrosteosaurus R. Owen, 1876 [nomen dubium]
• Chromogisaurus: M.D. Ezcurra, 2010
• Chuandongocoelurus He X., 1984
• Chuanjiesaurus Fang, Pang, Lü, Zhang Z., Pan, Wang Y., Li X.K. and Cheng Z., 2000
• Chubutisaurus del Corro, 1974
• Chungkingosaurus Dong Z.M., Zhou S. and Zhang Y.H., 1983
• Chuxiongosaurus Lü J, Y. Kobayashi, Li T-G & Zhong S, 2010
• Cinizasaurus Heckert, 1997 vide Nesbitt, Irmis and Parker, 2007 [nomen ex dissertatione]
• Cionodon E.D. Cope, 1874 [nomen dubium]
• Citipati Clark, Norell and Barsbold, 2001
• Claorhynchus E.D. Cope, 1892 [nomen dubium; PSS -> Triceratops]
• Claosaurus O.C. Marsh, 1890
• Clasmodosaurus F. Ameghino, 1898 [nomen dubium]
• Clevelanotyrannus Bakker, Williams and P.J. Currie vide P.J. Currie, 1987 [nomen nudum -> Nanotyrannus]
• Coahuilaceratops Loewen, S.D. Sampson, E.K. Lund, Farke, Aguillón Martínez, de Leon, Rodríguez de la Rosa, Getty and Eberth, 2009 [nomen manuscriptum]
• Coelophysis E.D. Cope, 1889
Coelophysis
• Coelosaurus J. Leidy, 1865 / [Anonymous, known to be R. Owen] 1854 ->Ornithomimus
• Coeluroides F. von Huene and Matley, 1933 [nomen dubium]
• Coelurosaurus F. von Huene, 1929 [nomen nudum]
• Coelurus O.C. Marsh, 1879
Coelurus
• Colepiocephale R. Sullivan, 2003
• Coloradia J.F. Bonaparte, 1978 / Blake, 1863 -> Coloradisaurus
• Coloradisaurus Lambert, 1983
• Colossosaurus G. Mantell, 1849 vide Torrens, 1997 [nomen nudum ->Pelorosaurus]
• Comanchesaurus Hunt, 1994 vide Nesbitt, Irmis and Parker, 2007 [nomen ex dissertatione]
• Compsognathus J.A. Wagner, 1859
Compsognathus
• Compsosuchus F. von Huene and Matley, 1933
• Concavenator F. Ortega, F. Escaso J.L. Sanz, 2010
• Conchoraptor Barsbold, 1986
Conchoraptor
• Condorraptor Rauhut, 2005
• Corythosaurus Brown, 1914
Corythosaurus
• Craspedodon L. Dollo, 1883
• Crataeomus H.G. Seeley, 1881 [nomen dubium; PSS -> Struthiosaurus]
• Craterosaurus H.G. Seeley, 1874 [nomen dubium; PSS -> Regnosaurus]
• Creosaurus O.C. Marsh, 1878 [nomen dubium; PSS -> Allosaurus]]
• Crichtonsaurus Dong Z.M., 2002
• Cristatusaurus Taquet and D.A. Russell, 1998
• Cruxicheiros R.B.J. Benson and J.D. Radley, 2009
• Cryolophosaurus Hammer and Hickerson, 1994
Cryolophosaurus
• Cryptodraco R. Lydekker, 1889 [JOS -> Cryptosaurus]
• Cryptoraptor Hunt, 1994 vide Nesbitt, Irmis and Parker, 2007 [nomen ex dissertatione]
• Cryptosaurus H.G. Seeley, 1869
• Cryptovolans Czerkas, Zhang D., Li J. and Li Y.X., 2002 [PSS -> Microraptor]
• Cumnoria H.G. Seeley, 1888 [JSS -> Camptosaurus]
• Cylindricodon R. Owen vide Ingles and Sawyer, 1979 / G. Jaeger, 1828 ->Hylaeosaurus
Cryptovolans

D

• Daanosaurus Ye, Gao Y. and Jiang, 2005
• Dacentrurus F.A. Lucas, 1902
• Dachungosaurus Zhao X. (as Chao S.), 1985 [nomen nudum]
Daemonosaurus Sues, Nesbitt, Berman & Henrici, 2011
• Dakotadon Paul, 2008
• Dalianraptor Gao C. and Liu J., 2005 [possible bird]
• Damalasaurus Zhao X., 1983 [nomen nudum]
• Dandakosaurus Yadagiri, 1982 [nomen dubium]
• Danubiosaurus E. Bunzel, 1871 [nomen dubium; PSS -> Struthiosaurus]
• Daptosaurus Brown vide Chure and McIntosh, 1989 [nomen nudum –> Deinonychus]
• Dashanpusaurus Peng G., Ye, Gao Y., Shu and Jiang, 2005
• Daspletosaurus D.A. Russell, 1970 [PSS -> Albertosaurus]
Daspletosaurus
• Datousaurus Dong Z.M. and Tang Z., 1984
• Daxiatitan You, Li D., Zhou L., and Ji Q., 2008
• Deinocheirus Osmólska and Roniewicz, 1970
• Deinodon J. Leidy, 1856 [nomen dubium; PSS -> Albertosaurus]
• Deinonychus Ostrom, 1969
Deinonychus 
Delapparentia Ruíz-Omeñaca, 2011
• Deltadromeus Sereno, Duthiel, Iarochene, Larsson, Lyon, Magwene, Sidor, Varricchio and J.A. Wilson, 1996
Deltadromeus
• Demandasaurus F.T. Fernández-Baldor, J.I. Canudo, P. Huerta, D. Montero, X. Pereda-Suberbiola & L.J. Salgado, 2010
• Denversaurus
 Bakker, 1988
• Diabloceratops J.I. Kirkland DeBlieux, 2010
• Diamantinasaurus Scott A. Hocknull, Mathew A. White, Travis R. Tischler, Alex G. Cook, Naomi D. Calleja, Trish Sloan, David A. Elliott, 2009
• Diceratops Lull vide Hatcher, 1905 / Foerster, 1868 -> Diceratus(unnecessary) * Nedoceratops
• Diceratus Mateus, 2008 [JOS -> Nedoceratops]
• Diclonius E.D. Cope, 1876 [nomen dubium]
• Dicraeosaurus Janensch, 1914
Dicraeosaurus
• Didanodon Osborn, 1902 [nomen dubium; PSS -> Lambeosaurus]
• Dilong Xu X., Norell, Kuang, Wang X., Zhao Q. and Jia C., 2004
Dilong 
• Dilophosaurus Welles, 1970
Dilophosaurus 
• Dimodosaurus Pidancet and Chopard, 1862 [nomen dubium; PSS ->Plateosaurus]
• Dinheirosaurus J.F. Bonaparte and Mateus, 1999
• Dinodocus R. Owen, 1884 [nomen dubium]
• Dinosaurus L. Rütimeyer, 1856 / Fischer von Waldheim, 1847 ->Gresslyosaurus
• Dinotyrannus Olshevsky vide Olshevsky, Ford and Yamamoto, 1995 [JSS -> Tyrannosaurus]
Diodorus Kammerer, Nesbitt & Shubin, 2011
• Diplodocus O.C. Marsh, 1878
Diplodocus
• Diplotomodon J. Leidy, 1868 [nomen dubium; PSS -> Dryptosaurus]
• Diracodon O.C. Marsh, 1881 [nomen dubium; PSS -> Stegosaurus]
• Dolichosuchus F. von Huene, 1932 [nomen dubium]
• Dollodon Paul, 2008
• Domeykosaurus Rubilar-Rogers (as Rubilar) and Vargas vide [Anonymous], 2003 [nomen nudum; in May 29, 2003 Reuters news reports]
• Dongbeititan Wang X., You H., Meng Q., Gao C., Chang X., and Liu J., 2007
• Dongyangosaurus Lü, Azuma, Chen R., Zheng W. and Jin X., 2008
• Doryphorosaurus F. Nopcsa, 1916 [JOS -> Kentrosaurus]
• Draconyx Mateus and Telles Antunes, 2001
• Dracopelta Galton, 1980
• Dracorex R.T. Bakker, R. Sullivan, Porter, Larson Saulsbury, 2006 [PSS ->Pachycephalosaurus]
• Dracovenator Yates, 2006 [for 2005]
• Dravidosaurus Yadagiri and Ayyasami, 1979
• Drinker Bakker, Galton, Siegwarth and Filla, 1990
• Dromaeosauroides P. Christiansen and Bonde, 2003
• Dromaeosaurus Matthew and Brown, 1922
Dromaeosaurus 
• Dromiceiomimus D.A. Russell, 1972
Dromiceiomimus
• Dromicosaurus van Hoepen, 1920 [JSS -> Massospondylus]
• Dromomeron Irmis, Nesbitt, Padian, N.D. Smith, Turner, Woody and A. Downs, 2007
• Dryosaurus O.C. Marsh, 1894
 Dryosaurus
• Dryptosauroides F. von Huene and Matley, 1933 [nomen dubium]
• Dryptosaurus O.C. Marsh, 1877
• Dubreuillosaurus Allain, 2005
• Duriatitan P.M. Barrett, R.B.J. Benson & P. Upchurch, 2010
• Duriavenator Benson, 2008
• Dynamosaurus Osborn, 1905 [JSS -> Tyrannosaurus]
• Dyoplosaurus Parks, 1924
• Dysalotosaurus Virchow, 1919 [JSS -> Dryosaurus]
• Dysganus E.D. Cope, 1876 [nomen dubium]
• Dyslocosaurus McIntosh, Coombs and D.A. Russell, 1992
• Dystrophaeus E.D. Cope, 1877
• Dystylosaurus Jensen, 1985 [JSS -> Supersaurus]
Dystylosaurus 

E

• Echinodon R. Owen, 1861
• Edmarka Bakker, Kralis, Siegwarth and Filla, 1992
• Edmontonia C.M. Sternberg, 1928
Edmontonia
• Edmontosaurus Lambe, 1917
Edmontosaurus
• Efraasia Galton, 1973
• Einiosaurus S.D. Sampson, 1995
Einiosaurus
• Ekrixinatosaurus Calvo, Rubilar-Rogers and Moreno, 2004
Elachistosuchus Janensch, 1949* [rhynchocephalian]
Elaltitan Mannion & Otero, 2012
• Elaphrosaurus Janensch, 1920
Elaphrosaurus 
• Elmisaurus Osmólska, 1981
• Elosaurus Peterson and Gilmore, 1902 [JSS -> Apatosaurus]
• Elrhazosaurus P.M. Galton, 2009
• Elvisaurus Holmes, 1993 [nomen nudum -> Cryolophosaurus]
• Emausaurus Haubold, 1990
• Embasaurus Riabinin, 1931 [nomen dubium]
• Enigmosaurus Barsbold and Perle vide Barsbold, 1983 [JSS -> Erlikosaurus]
Eoabelisaurus Pol & Rauhut, 2012
Eoabelisaurus
• Eobrontosaurus Bakker, 1998
• Eocarcharia Sereno and Brusatte, 2008
• Eoceratops Lambe, 1915 [PSS -> Chasmosaurus]
• Eocursor Butler, R.M.H. Smith and D.B. Norman, 2007
• Eodromaeus R.N. Martinez, P.C. Sereno, O.A. Alcober, C.E. Colombi, P.R. Renne, I.P. Montañez & B.S. Currie, 2011
• “Eohadrosaurus” Kirkland, 1997 [nomen nudum -> Eolambia]
• Eolambia Kirkland, 1998
• Eomamenchisaurus Lü, Li T.G., Zhong, Ji Q. and Li S.X., 2008
• Eoraptor Sereno, Forster, Rogers and Monetta, 1993
Eoraptor
• Eotriceratops Wu X., Brinkman, Eberth and Braman, 2007
• Eotyrannus Hutt, Naish, Martill, Barker and Newberry, 2001
 Eotyrannus
• Epachthosaurus J. Powell, 1990
• Epanterias E.D. Cope, 1878 [nomen dubium; PSS -> Allosaurus orSaurophaganax]
• Epidendrosaurus Zhang F., Zhou Z., Xu X. and Wang X., 2002
• Equijubus You, Luo, Shubin, Witmer, Tang Z. and Tang F., 2003
• Epidexipteryx Zhang F., Zhou Z., Xu X., Wang X. L. and C. Sullivan, 2008
• Erectopus F. von Huene, 1922
• Erketu Ksepka and Norell, 2006
• Erliansaurus Xu X., Zhang X.H., Sereno, Zhao X., Kuang, Han J. and Tan L., 2002
• Erlikosaurus Perle vide Barsbold and Perle, 1980
• Eshanosaurus Xu X., Zhau X. and Clark, 2001
• Euacanthus R. Owen vide Tennyson, 1897 [nomen nudum; JOS ->Polacanthus]
• Eucamerotus J.W. Hulke, 1872 [nomen dubium]
• Eucentrosaurus Chure and McIntosh, 1989 [JOS -> Centrosaurus]
• Eucercosaurus H.G. Seeley, 1879 [nomen dubium; PSS -> Acanthopholis]
• Eucnemesaurus van Hoepen, 1920
• Eucoelophysis R. Sullivan and S.G. Lucas, 1999
• Eugongbusaurus Knoll, 1999
• Euhelopus Romer, 1956
• Euoplocephalus Lambe, 1910
Euoplocephalus
• Eureodon Brown vide Olshevsky, 1991 [nomen nudum -> Tenontosaurus]
• Euronychodon Telles Antunes and Sigogneau-Russell, 1991
• Europasaurus Mateus, Laven and Knötschke vide Sander, Mateus, Laven and Knötschke, 2006
• Euskelosaurus T.H. Huxley, 1866
• Eustreptospondylus A.D. Walker, 1964
Eustreptospondylus

F

• Fabrosaurus Ginsburg, 1964 [nomen dubium]
• Falcarius Kirkland, Zanno, S.D. Sampson, Clark and DeBlieux, 2005
• Fenestrosaurus Osborn, 1924 [nomen nudum -> Oviraptor]
• Ferganasaurus Alifanov and Averianov, 2003
• Ferganocephale Averianov, T. Martin and Bakirov, 2005
• Frenguellisaurus F.E. Novas, 1986 [JSS -> Herrerasaurus]
• Fukuiraptor Azume and P.J. Currie, 2000
Ferganocephale
• Fukuisaurus Kobayashi and Azuma, 2003
• Fukuititan Azuma Shibata, 2010
• Fulengia Carroll and Galton, 1977 [JSS -> Lufengosaurus]
• Fulgurotherium F. von Huene, 1932
• Fusinasus Hutt, 2002 [nomen nudum -> Eotyrannus]
• Fusuisaurus Mo, Wang W., Huang Z., Huang X. and Xu X., 2006
• “Futabasaurus” Lambert, 1990 [nomen nudum; this name now belongs to a plesiosaur (Sato, Hasegawa and Manabe, 2006)]
• Futalognkosaurus Calvo, Porfiri, González-Riga and Kellner, 2007
Futalognkosaurus 

G

• Gadolosaurus Saito, 1979 [nomen nudum]
• Gallimimus Osmólska, Roniewicz and Barsbold, 1972
Gallimimus
• Galveosaurus Sánchez-Hernández, 2005
• Galvesaurus Barco, Canudo, Cuenca-Bescós and Ruíz-Omeñaca, 2005 [JOS -> Galveosaurus]
• Gansutitan You, Li D., Zhou L., and Ji Q., 2008 [nomen nudum -> Daxiatitan]
• Gargoyleosaurus Carpenter, C.A. Miles and Cloward, 1998
Gargoyleosaurus
• Garudimimus Barsbold, 1981
• Gasosaurus Dong Z.M., 1985
Gasosaurus
• Gasparinisaura R.A. Coria and Salgado, 1996
• Gastonia Kirkland, 1998
Gastonia
• Gavinosaurus Kelly, 1998 [nomen nudum -> Eotyrannus]
• Geminiraptor P. Senter, J.I. Kirkland, J. Bird & J.A. Bartlett, 2010
• Genusaurus Accarie, Beaudoin, Dejax, Fries, Michard and Taquet, 1995
• Genyodectes Woodward, 1901
• Geranosaurus Broom, 1911
Gideonmantellia Ruíz-Omeñaca, Canudo, Cuenca-Bescós, Cruzado-Caballero, Gasca & Moreno-Azanza, 2012
Gideonmantellia
• Gigantoraptor Xu X., Tan Q., Wang J., Zhao X. and Tan L., 2007
• Giganotosaurus R.A. Coria and Salgado, 1995
Giganotosaurus 
• Gigantosaurus H.G. Seeley, 1869 [nomen dubium; PSS -> Pelorosaurus]
• Gigantosaurus E. Fraas, 1908 / H.G. Seeley, 1869 -> Tornieria
• Gigantoscelus van Hoepen, 1916 [JSS -> Euskelosaurus]
• Gigantspinosaurus Ouyang H., 1992
• Gilmoreosaurus Brett-Surman, 1979
• Ginnareemimus Kaneko, 2000 [nomen nudum]
• Giraffatitan Paul, 1988
• Glacialisaurus N.D. Smith and Pol, 2007
• Glishades Prieto-Márquez, 2010
• Glyptodontopelta Ford, 2000
• Gobiceratops Alifanov, 2008
• Gobisaurus Vickaryous, A.P. Russell, P.J. Currie and Zhao X., 2001
• Gobititan You, Tang F. and Luo, 2003
• Godzillasaurus Ikejiri, 2003 [nomen nudum; JOS –> Gojirasaurus (misspelled)]
• Gojirasaurus Carpenter, 1997
Gilmoreosaurus
• Gondwanatitan Kellner and Azevedo, 1999
• Gongbusaurus Dong Z.M., Zhou S. and Zhang Y.H., 1983
• Gongxianosaurus He X., Wang C., Liu S., Zhou F., Liu T., Cai and Dai, 1998
• Gorgosaurus Lambe, 1914 [PSS -> Albertosaurus]
• Goyocephale Perle, Maryanska and Osmólska, 1982
• Graciliceratops Sereno, 2000
• Graciliraptor Xu X. and Wang X., 2004
• Gravisaurus Chabli vide D.B. Norman, 1989 [nomen nudum -> Lurdusaurus]
• Gravitholus Wall and Galton, 1979 [nomen dubium]
• Gresslyosaurus L. Rütimeyer, 1856 [PSS -> Plateosaurus]
• “Gripposaurus” P.M. Barrett, P. Upchurch, Zhou X. and Wang X., 2007 [nomen nudum]
Gryphoceratops Ryan, Evans, Currie, C. Brown & Brinkman, 2012
Gryphognathus Ryan, Evans, Currie, C. Brown & Brinkman, 2011 [nomen manuscriptum validly published online, but –> Gryphoceratops; not preoccupied by fish genus Griphognathus Gross, 1956, which has later appeared misspelled Gryphognathus in the literature]
Gryphoceratops
• Gryponyx Broom, 1911 [JSS -> Massospondylus]
• Gryposaurus Lambe, 1914
• Guaibasaurus J.F. Bonaparte, Ferigolo and Ribeiro, 1999
• Guanlong Xu X., Clark, Forster, Norell, Erickson, Eberth, Jia C. and Zhao Q., 2006
• Gyposaurus Broom, 1911 [JSS -> Massospondylus]
Guanlong

H

• “Hadrosauravus” Lambert, 1990 [nomen nudum -> Gryposaurus]
• Hadrosaurus J. Leidy, 1859 [nomen dubium]
• Hagryphus Zanno and S.D. Sampson, 2005
• Halticosaurus F. von Huene, 1908 [nomen dubium]
• Hanssuesia R. Sullivan, 2003
• “Hanwulosaurus” [Anonymous] 2001 [nomen nudum; in Xinhua News Service news articles]
• Haplocanthosaurus Hatcher, 1903
• Haplocanthus Hatcher, 1903 / L. Agassiz, 1845 -> Haplocanthosurus
• Harpymimus Barsbold and Perle, 1984
• Hecatasaurus Brown, 1910 [JOS -> Telmatosaurus]
• Heilongjiangosaurus Li W. and Jin J., 2001 [nomen nudum]
• Heishansaurus Bohlin, 1953 [nomen dubium]
• Helioceratops, Jin Liyong et al, 2009
• Helopus Wiman, 1929 / J.G. Wagler, 1832 -> Euhelopus
• Heptasteornis Harrison and C.A. Walker, 1975 [nomen dubium; PSS ->Elopteryx]
• Herrerasaurus Reig, 1963
Herrerasaurus 
• Hesperonychus N.R. Longrich and P.J. Currie, 2009
• Hesperosaurus Carpenter, C.A. Miles and Cloward, 2001
Hesperosaurus
• Heterodontosaurus Crompton and Charig, 1962
Heterodontosaurus
• Heterosaurus Cornuel, 1850 [JSS -> Iguanodon]
Hexing Jin L., Chen J. & Godefroit, 2012
• Hexinlusaurus P.M. Barrett, Butler and Knoll, 2005
• Heyuannia Lü, 2003
• Hierosaurus Wieland, 1909
• Hikanodon W.M. Keferstein, 1834 [JOS -> Iguanodon]
• “Hironosaurus” Hisa, 1988 [nomen nudum]
• “Hisanohamasaurus” Lambert, 1990 [nomen nudum]
• Histriasaurus Dalla Vecchia, 1998
• Homalocephale Maryanska and Osmólska, 1974
 Homalocephale
• Honghesaurus [Anonymous], 1981 [nomen nudum -> Yandusaurus]
• Hongshanosaurus You, Xu X. and Wang X., 2003
• Hoplitosaurus F.A. Lucas, 1902
• Hoplosaurus H.G. Seeley, 1881 [nomen dubium; PSS -> Struthiosaurus]
• Hortalotarsus H.G. Seeley, 1894 [JSS -> Massospondylus]
• Huabeisaurus Pang and Cheng Z., 2000
• Huanghetitan You, Li D., Zhou L. and Ji Q., 2006
• Huaxiagnathus Hwang, Norell, Ji Q. and Gao K., 2004
• “Huaxiasaurus” Rey, 2002 [nomen nudum -> Huaxiagnathus]
Huaxiaosaurus Zhao X., Wang K. & Li D. J., 2011
• Huayangosaurus Dong Z.M., Tang Z. and Zhou S., 1982
Huayangosaurus 
• Hudiesaurus Dong Z.M., 1997
Huehuecanauhtlus Ramírez-Velasco, Benammi, Prieto-Márquez, J. Ortega & Hernández-Rivera, 2012
Huehuecanauhtlus
• Hulsanpes Osmólska, 1982
• Hungarosaurus Ösi, 2005
• Hylaeosaurus G. Mantell, 1833
• Hylosaurus L.J. Fitzinger, 1840 [JOS -> Hylaeosaurus]
• Hypacrosaurus Brown, 1913
Hypacrosaurus
• Hypselosaurus Matheron, 1869
• Hypselospinus Norman, 2010
• Hypsibema E.D. Cope, 1869 [nomen dubium]
• Hypsilophodon T.H. Huxley, 1869
• Hypsirophus E.D. Cope, 1878 [nomen dubium; >Stegosaurus]
Hypsilophodon

I

• “Ichabodcraniosaurus” Novacek, 1996 [nomen nudum]
Ichthyovenator Allain, Xaisanavong, Richir & Khentavong, 2012
Ichthyovenator
• Iguanodon G. Mantell, 1825
Iguanodon 
• “Iguanoides” Conybeare vide Cadbury, 2000 [nomen nudum –> Iguanodon]
• Iguanosaurus [Anonymous], 1824 [nomen nudum -> Iguanodon]
• Iliosuchus F. von Huene, 1932
• Ilokelesia R.A. Coria and Salgado,2000 (not 1998)
• Incisivosaurus Xu X., Cheng Y., Wang X. and Chang C., 2002 [PSS ->Protarchaeopteryx]
• Indosaurus F. von Huene and Matley, 1933
• Indosuchus F. von Huene and Matley, 1933
Indosuchus
• Ingenia Barsbold, 1981 / Gerlach, 1957 (replacement name not yet published)
Ingenia
• Inosaurus de Lapparent, 1960 [nomen dubium]
• Irritator Martill, Cruickshank, Frey, Small and M. Clarke, 1996
Irritator
• Isanosaurus Buffetaut, Suteethorn, Cuny, Tong, LeLoeuff, Khansubha and Jongautchariyakul, 2000
• Ischisaurus Reig, 1963 [JSS -> Herrerasaurus]
• Ischyrosaurus J.W. Hulke, 1874 vide R. Lydekker, 1888 / E.D. Cope, 1869
• Isisaurus J.A. Wilson and P. Upchurch, 2003
• “Issasaurus” G. Maier, 2003 [nomen nudum -> Dicraeosaurus]
• Itemirus Kurzanov, 1976
• Iuticosaurus LeLoeuff, 1993 [nomen dubium]
Isisaurus 

J

• Jainosaurus Hunt, Lockley, S.G. Lucas and C. Meyer, 1995 (not 1994) [nomen dubium; PSS -> Titanosaurus]
• Janenschia Wild, 1991
• Jaxartosaurus Riabinin, 1937 [nomen dubium]
• Jeholornis Zhou Z. and Zhang F., 2002 [JSS -> Shenzhouraptor; possible bird]
• Jeholosaurus Xu X., Wang X. and You, 2000
• Jenghizkhan Olshevsky vide Olshevsky, Ford and Yamamoto, 1995 [JSS ->Tarbosaurus]
• Jensenosaurus Olshevsky vide B.D. Curtice, Stadtman and L.J. Curtice, 1996 [nomen nudum -> Ultrasauros; JSS -> Supersaurus]
• Jeyawati McDonald, Wolfe Kirkland, 2010
• “Jiangjunmiaosaurus” [Anonymous], 1987 [nomen nudum ->Monolophosaurus and Sinraptor]
• Jiangjunosaurus Jia C., Forster (as Foster), Xu X. and Clark, 2007
• Jiangshanosaurus Tang F., Kang, Jin X., Wei and Wu W.T., 2001
• Jinfengopteryx Ji Q., Ji S., Lü, You, Chen W., Liu Y.Q. and Liu Y.X., 2005
• Jingshanosaurus Zhang Y.H. and Yang Z.L., 1995
• Jinzhousaurus Wang X. and Xu X., 2001
• Jiutaisaurus Wu W.H., Dong Z.M., Sun, Li C. and Li T., 2006
• Jixiangornis Ji Q., Ji S., Zhang H., You, Zhang J.P., Wang L., Yuan and Ji X., 2002 [possible bird]
• Jobaria Sereno, Beck, Dutheil, Larsson, Lyon, Moussa, Sadleir, Sidor, Varricchio, G.P. Wilson and J.A. Wilson, 1999
Jobaria
• Jubbulpuria F. von Huene and Matley, 1933 [nomen dubium]
• “Jurassosaurus” Dong Z.M. vide Holden, 1992 [nomen nudum ->Tianchisaurus]
Juratyrant Brusatte & Benson, 2012
Juratyrant 
• Juravenator Göhlich and Chiappe, 2006
Juravenator

K

• “Kagasaurus” Hisa, 1988 [nomen nudum]
• Kaijiangosaurus He X., 1984
• Kakuru Molnar and Pledge, 1980
• Kangnasaurus Haughton, 1915
• Karongasaurus Gomani, 2005 [electronically published]
• “Katsuyamasaurus” Lambert, 1990 [nomen nudum -> Fukuiraptor]
• Kayentavenator R. Gay, 2010
• Kelmayisaurus Dong Z.M., 1973
• Kemkemia Cau, Andrea; Maganuco, Simone, 2009
• Kentrosaurus Hennig, 1915 / Lambe, 1904 -> Kentrurosaurus andDoryphorosaurus
Kentrosaurus
• Kentrurosaurus Hennig, 1916 [JOS -> Kentrosaurus]
• Kerberosaurus Bolotsky and Godefroit, 2004
• Khaan Clark, Norell and Barsbold, 2001
• Khetranisaurus Malkani, 2006
• Kinnareemimus Buffetaut, E., V. Suteethorn and H. Tong, 2009
• “Kitadanisaurus” Lambert, 1990 [nomen nudum]
• Kittysaurus Hargreaves, 2001 [nomen nudum -> Eotyrannus]
• Klamelisaurus Zhao X., 1993
Klamelisaurus 
• Kol ghuva Alan H. Turner, Sterling J. Nesbitt, and Mark A. Norell, 2009
• Koparion Chure, 1994
• Koreanosaurus Kim H.M., 1979 [nomen nudum]
• Kosmoceratops: S.D. Sampson, M.A. Loewen, A.A. Farke, E.M. Roberts, C.A. Forster, J.A. Smith and A.L. Titus, 2010
• Kotasaurus Yadagiri, 1988
• Koutalisaurus Prieto-Marquez, Gaete, Rivas, Galobart and Boada, 2006
• Kritosaurus Brown, 1910 [nomen dubium; PSS -> Anasazisaurus,Gryposaurus, and/or Naashoibitosaurus]
• Kryptops Sereno and Brusatte, 2008
• Kukufeldia A.T. McDonald, P.M. Barrett S.D. Chapman, 2010
• Kulceratops Nessov, 1995
Kundurosaurus Godefroit, Bolotsky & Lauters, 2012
Kundurosaurus
• Kunmingosaurus Zhao X. (as Chao S.), 1985
Kunmingosaurus

L

• Labocania Molnar, 1974
• Labrosaurus O.C. Marsh, 1879 [JSS -> Allosaurus]
• Laelaps E.D. Cope, 1866 / Koch, 1836 -> Drytosaurus
• Laevisuchus F. von Huene and Matley, 1933 [nomen dubium]
• Lagerpeton Romer, 1971
• Lagosuchus Romer, 1971 [nomen dubium]
• Lamaceratops Alifanov, 2003
• Lambeosaurus Parks, 1923
Lambeosaurus
• Lametasaurus Matley, 1923 [nomen dubium]
• Lamplughsaura Kutty, Chatterjee, Galton and P. Upchurch, 2007
• Lanasaurus Gow, 1975
• Lancangosaurus Zhao X. vide Dong Z.M., Zhou S. and Zhang Y.H., 1983 [nomen nudum -> Datousaurus]
• Lancanjiangosaurus Zhao X., 1983 [nomen nudum]
• Lanzhousaurus You, Ji Q and Li D, 2005
• Laosaurus O.C. Marsh, 1878 [nomen dubium]
• Laplatasaurus F. von Huene, 1929
• Lapparentosaurus J.F. Bonaparte, 1986
• Leaellynasaura T. Rich and Vickers-Rich (as P. Rich), 1989
Leaellynasaura
• Leipsanosaurus F. Nopcsa, 1918 [PSS -> Struthiosaurus]
• Lengosaurus Kelly, 1998 [nomen nudum -> Eotyrannus]
• Leptoceratops Brown, 1914
• Leptospondylus R. Owen, 1854 [JSS -> Massospondylus]
• Leshansaurus Li F., Peng G., Ye Y., Jiang S. and Huang D., 2009
• Lesothosaurus Galton, 1978 [PSS -> Fabrosaurus]
Lesothosaurus
• Lessemsaurus J.F. Bonaparte, 1999
• Levnesovia, Hans-Dieter Sues and Alexander Averianov, 2009
• Lexovisaurus Hoffstetter, 1957
Lexovisaurus 
• Liaoceratops Xu X., Makovicky, Wang X., Norell and You, 2002
• Liaoningosaurus Xu X., Wang X. and You, 2001
• Liassaurus Welles, H.P. Powell and Pickering vide Pickering, 1995 [nomen nudum]
• Ligabueino J.F. Bonaparte, 1996
• Ligabuesaurus J.F. Bonaparte, González-Riga (as González Riga) and Apesteguía, 2006
• “Ligomasaurus” G. Maier, 2003 [nomen nudum -> Giraffatitan]
• Liliensternus Welles, 1984
Liliensternus
• Limaysaurus Salgado, Garrido, S.E. Cocca and J.R. Cocca, 2004
• Limnosaurus F. Nopcsa, 1899 / O.C. Marsh, 1872 -> Telmatosaurus andHecatasaurus
• Limusaurus 
Xu, X., et al, 2009
• Lirainosaurus Sanz, J.E. Powell, Le Loeuff, R.D. Martínez and Pereda-Suberbiola, 1999
• Loncosaurus F. Ameghino, 1898 [nomen dubium]
• Longosaurus Welles, 1984 [JSS -> Coelophysis]
• Lophorhothon W.R. Langston, 1960
• Lophostropheus Ezcurra and Cuny, 2007
• Loricatosaurus S. Maidment, D.B. Norman, P.M. Barrett and P. Upchurch, 2008
• Loricosaurus F. von Huene, 1929
• Losillasaurus Casanovas-Cladellas (as Casanovas), Santafe and Sanz, 2001
• Lourinhanosaurus Mateus, 1998
Lourinhanosaurus
• Lourinhasaurus Dantas, Sanz, Da Silva, Ortega, Dos Santos and Cachao, 1998
• Luanchuanraptor Lü, Xu L., Zhang X.L., Ji Q., Jia S., Hu W., Zhang J.M. and Wu Y., 2007
• Luanpingosaurus Cheng vide Chen P., 1996 [nomen nudum ->Psittacosaurus]
• Luckyraptor [Anonymous], 2007 [nomen nudum]
• Lufengocephalus Yang Z.J. (as Young C.C.), 1974 [JSS -> Lufengosaurus]
• Lufengosaurus Yang Z.J. (as Young C.C.), 1941
• Lukousaurus Yang Z.J. (as Young C.C.), 1948
• Luoyanggia Lü, Xu L., Jiang X., Jia S., Li M., Yuan, Zhang X.L. and Ji Q., 2009
• Luoyangosaurus Lü, 2009 [nomen nudum -> Luoyanggia]
• Lurdusaurus Taquet and D.A. Russell, 1999
• Lusitanosaurus de Lapparent and Zbyszewski, 1957
• Lusotitan Telles Antunes and Mateus, 2003
• Lycorhinus Haughton, 1924

M

• Machairasaurus N.R. Longrich, P.J. Currie and Dong Z-M, 2010
• Macrodontophion
 A. Zborzewski, 1834 [nomen dubium]
• Macrogryphosaurus Calvo, Porfiri and F.E. Novas, 2007
• Macrophalangia C.M. Sternberg, 1932 [JSS -> Chirostenotes]
• Macrurosaurus H.G. Seeley, 1876
• “Madsenius” Lambert, 1990 [nomen nudum -> Allosaurus]
Magnapaulia Prieto-Márquez, Chiappe & Joshi, 2012
Magnapaulia
• Magnirostris You and Dong Z.M., 2003
• Magnosaurus F. von Huene, 1932
• Magulodon Kranz, 1996 [nomen nudum]
• Magyarosaurus F. von Huene, 1932
• Mahakala Turner, Pol, J.A. Clarke, Erickson and Norell, 2007
• Maiasaura Horner and Makela, 1979
Maiasaura
• Majungasaurus Lavocat, 1955
Majungasaurus 
• Majungatholus Sues and Taquet, 1979 [JSS -> Majungasaurus]
• Malarguesaurus González-Riga, Previtera and Pirrone, 2008
• Malawisaurus Jacobs, Winkler, W.R. Downs and Gomani, 1993
• Maleevosaurus Carpenter, 1992 [JSS -> Tarbosaurus]
• Maleevus Tumanova, 1987
• Mamenchisaurus Yang Z.J. (as Young C.C.), 1954
Mamenchisaurus 
• Mandschurosaurus Riabinin, 1930 [nomen dubium; PSS ->Amurosaurus orCharonosaurus]
• Manospondylus E.D. Cope, 1892 [nomen dubium; PSS -> Tyrannosaurus]
• Mantellisaurus Paul, 2006
• Mapusaurus R.A. Coria and P.J. Currie, 2006
Mapusaurus 
• Marasuchus Sereno and Arcucci, 1994
• Marisaurus Malkani, 2006
• Marmarospondylus R. Owen, 1875 [nomen dubium]
• Marshosaurus J.H. Madsen, 1976
• Masiakasaurus S.D. Sampson, Carrano and Forster, 2001
Masiakasaurus 
• Massospondylus R. Owen, 1854
• Maxakalisaurus Kellner, Campos, Azevedo, Trotta, Henriques, Craik and Silva, 2006
• Medusaceratops Ryan, A. P., Russell and Hartman, 2010
• Megacervixosaurus Zhao X., 1983 [nomen nudum]
• Megadactylus E. Hitchcock, 1865 / L.J. Fitzinger, 1843 -> Amphisaurus
• “Megadontosaurus” Brown vide Ostrom, 1970 [nomen nudum -> Deinonychusand Microvenator]
• Megalosaurus W. Buckland, 1824
Megalosaurus
• Megapnosaurus Ivie, Slipinski and Wegrzynowicz, 2001 [JSS -> Coelophysis]
• Megaraptor F.E. Novas, 1998
• Mei Xu X., and Norell, 2004
• Melanorosaurus Haughton, 1924
• Mendozasaurus González-Riga (as González Riga), 2003
• Merosaurus Welles, H.P. Powell and Pickering vide Pickering, 1995 [nomen nudum]
• Metriacanthosaurus A.D. Walker, 1964
Metriacanthosaurus
• Microcephale Sereno, 1997 [nomen nudum]
• Microceratops Bohlin, 1953 / Seyrig, 1952 -> Microceratus
• Microceratus Mateus, 2008 [nomen dubium]
• Microcoelus R. Lydekker, 1893 [nomen dubium; PSS -> Saltasaurus]
• Microdontosaurus Zhao X., 1983 [nomen nudum]
• Microhadrosaurus Dong Z.M., 1979 [nomen dubium]
• Micropachycephalosaurus Dong Z.M., 1978
• Microraptor Xu X., Zhou Z. and Wang X., 2000
Micropachycephalosaurus
• Microsaurops Kuhn, 1963 [JOS -> Microcoelus]
• Microvenator Ostrom, 1970
• “Mifunesaurus” Hisa, 1985 [nomen nudum]
• Minmi Molnar, 1980
Minmi 
• Minotaurasaurus C.A. Miles and C.J. Miles, 2009
• Miragaia Mateus, S. Maidment and N.A. Christiansen, 2009
• Mirischia Naish, Martill and Frey, 2004
• Moabosaurus Britt vide [Anonymous] 2006 [nomen nudum, in “The Gigantic Dinosaur Expo 2006 Official Guidebook”]
• Mochlodon H.G. Seeley, 1881
• “Mohammadisaurus” G. Maier, 2003 [nomen nudum -> Tornieria]
• Mojoceratops N.R. Longrich, 2010 [PSS -> Eoceratops]
• Mongolosaurus Gilmore, 1933 [nomen dubium]
• Monkonosaurus Zhao X. vide Dong Z.M., 1990
• Monoclonius E.D. Cope, 1876 [nomen dubium; PSS -> Centrosaurus orStyracosaurus]
• Monolophosaurus Zhao X. and P.J. Currie, 1994 (not 1993)
Monolophosaurus 
• Mononychus Perle, Norell, Chiappe and Clark, 1993 / Schueppel, 1824 ->Mononykus
• Mononykus Perle, Norell, Chiappe and Clark, 1993
Mononykus
• Montanoceratops C.M. Sternberg, 1951
• Morinosaurus H.E. Sauvage, 1874 [nomen dubium; PSS -> Pelorosaurus]
• Morosaurus O.C. Marsh, 1878 [JSS -> Camarasaurus]
• “Moshisaurus” Hisa, 1985 [nomen nudum -> Mamenchisaurus]
• “Mtapaiasaurus” G. Maier, 2003 [nomen nudum -> Giraffatitan]
• “Mtotosaurus” G. Maier, 2003 [nomen nudum -> Dicraeosaurus]
• Mussaurus J.F. Bonaparte and Vince, 1979
• Muttaburrasaurus Bartholomai and Molnar, 1981
Muttaburrasaurus 
• Muyelensaurus Calvo, González-Riga and Porfiri, 2007
• Mymoorapelta Kirkland and Carpenter, 1994
Mymoorapelta

N

• Naashoibitosaurus Hunt and S.G. Lucas, 1993 [PSS -> Gryposaurus orKritosaurus]
• Nanningosaurus Mo, Zhao Z., Wang W. and Xu X., 2007
• Nanosaurus O.C. Marsh, 1877
• Nanotyrannus Bakker, Williams and P.J. Currie, 1988 [PSS -> Tyrannosaurus]
 Nanotyrannus
• Nanshiungosaurus Dong Z.M., 1979
• Nanyangosaurus Xu X., Zhao X., Lü, Huang W., Li Z. and Dong Z.M., 2000
• Nectosaurus Versluys, 1910 / Merriam, 1905 -> Kritosaurus
• Nedcolbertia Kirkland, Britt, Whittle, S.K. Madsen and Burge, 1998
• Nedoceratops Ukrainsky, 2007 [PSS -> Triceratops]
• Neimongosaurus Zhang X.H., Xu X., Zhao X., Sereno, Kuang and Tan L., 2001
• Nemegtia Lü, Tomida, Azuma, Dong Z.M. and Lee, 2004 / Szczechura, 1978 -> Nemegtomaia
• Nemegtomaia Lü, Tomida, Azuma, Dong Z.M. and Lee, 2005
• Nemegtosaurus Nowinski, 1971
• Neosaurus Gilmore vide Gilmore and Stewart, 1945 / F. Nopcsa, 1923 ->Parrosaurus
• Neosodon M. de la Moussaye, 1885
• Neovenator Hutt, Martill and Barker, 1996
Neovenator
• Neuquenraptor F.E. Novas and D. Pol, 2005 [PSS -> Unenlagia]
• Neuquensaurus J.E. Powell, 1992
• Newtonsaurus Welles vide Welles and Pickering, 1999 [nomen nudum]
• Ngexisaurus Zhao X., 1983 [nomen nudum]
• Nigersaurus Sereno, Beck, Dutheil, Larsson, Lyon, Moussa, Sadleir, Sidor, Varricchio, G.P. Wilson and J.A. Wilson, 1999
Nigersaurus
• Niobrarasaurus Carpenter, Dilkes and Weishampel, 1995
• Nipponosaurus Nagao, 1936
• Noasaurus J.F. Bonaparte and J.E. Powell, 1980
• Nodocephalosaurus R. Sullivan, 1999
• Nodosaurus O.C. Marsh, 1889
• Nomingia Barsbold, Osmólska, Watabe, P.J. Currie and Tsogtbaatar, 2000
• Nopcsaspondylus Apesteguía, 2007
• Nothronychus Kirkland and Wolfe, 2001
• Notoceratops Tapia, 1918 [nomen dubium]
• Notohypsilophodon R.D. Martínez, 1998
• Nqwebasaurus de Klerk, Foster, S.D. Sampson, Chinsamy and Ross, 2000
• Nteregosaurus G. Maier, 2003 [nomen nudum -> Janenschia]
• Nuoersaurus Dong Z.M. and Li X.M., 1991 [nomen nudum; later spelledNuoerosaurus and Nurosaurus but neither formally described nor named]
• Nuthetes R. Owen, 1854
• Nyororosaurus G. Maier, 2003 [nomen nudum -> Dicraeosaurus]
Nothronychus

O

• Ohmdenosaurus Wild, 1978
• Ojoceratops R. Sullivan and S. G. Lucas, 2010
• Oligosaurus H.G. Seeley, 1881 [nomen dubium; PSS -> Rhabdodon]
• Olorotitan Godefroit, Bolotsky and Alifanov, 2003
• Omeisaurus Yang Z.J. (as Young C.C.), 1939
• Omnivoropteryx Czerkas and Ji Q., 2002
• Omosaurus R. Owen, 1875 / J. Leidy, 1856 -> Dacentrurus
• Onychosaurus F. Nopcsa, 1902 [nomen dubium; PSS -> Rhabdodon]
• Opisthocoelicaudia Borsuk-Bialynicka, 1977
• Oplosaurus P. Gervais, 1852 [nomen dubium; PSS -> Pelorosaurus]
• Orcomimus Triebold, 1997 [nomen nudum]
• Orinosaurus R. Lydekker, 1889 [JOS -> Orosaurus]
• Orkoraptor F.E. Novas, Ezcurra and Lecuona, 2008
• Ornatotholus Galton and Sues, 1983 [JSS -> Stegoceras]
• Ornithodesmus H.G. Seeley, 1887
• Ornithoides Osborn, 1924 [nomen nudum -> Saurornithoides]
• Ornitholestes Osborn, 1903
Ornitholestes
• Ornithomerus H.G. Seeley, 1881 [JSS -> Rhabdodon]
• Ornithomimoides F. von Huene and Matley, 1933 [nomen dubium]
• Ornithomimus O.C. Marsh, 1890
Ornithomimus 
• Ornithopsis H.G. Seeley, 1870 [nomen dubium]
• Ornithotarsus E.D. Cope, 1869 [nomen dubium; PSS -> Hadrosaurus]
• Orodromeus Horner and Weishampel, 1988
• Orosaurus T.H. Huxley, 1867 [JSS -> Euskelosaurus]
• Orthogoniosaurus Das-Gupta, 1931 [nomen dubium]
• Orthomerus H.G. Seeley, 1883 [nomen dubium; PSS -> Telmatosaurus]
• Oryctodromeus Varricchio, A.J. Martin and Katsura, 2007
• Oshanosaurus Zhao X. (as Chao S.), 1985 [nomen nudum]
Osmakasaurus McDonald, 2011 
Ostafrikasaurus Buffetaut, 2012
Ostafrikasaurus
Othnielia Galton, 1977
• Othnielosaurus Galton, 2006
Othnielosaurus
• Otogosaurus Zhao X. and Tan L., 2004 [citation not seen, author’s name(s) may change]
• Ouranosaurus Taquet, 1976
Ouranosaurus
• Oviraptor Osborn, 1924
• Ovoraptor Osborn, 1924 [nomen nudum -> Velociraptor]
• Ozraptor J.A. Long and Molnar, 1998
Ozraptor

P

• Pachycephalosaurus Brown and Schlaikjer, 1943
Pachycephalosaurus
• Pachyrhinosaurus C.M. Sternberg, 1950
Pachyrhinosaurus
• Pachysauriscus Kuhn, 1959 [nomen dubium; PSS -> Plateosaurus]
• Pachysaurops F. von Huene, 1961 (not 1959) [JOS -> Pachysauriscus]
• Pachysaurus F. von Huene, 1908 / L.J. Fitzinger, 1843 -> Pachysauriscus
• Pachyspondylus R. Owen, 1854 [JSS -> Massospondylus]
• Pakisaurus Malkani, 2006
• Palaeopteryx Jensen, 1981
• Palaeoscincus J. Leidy, 1856 [nomen dubium; PSS -> Edmontonia orPanoplosaurus]
• Paludititan Z. Csiki, V. Codrea, C. Jipa-Murzea and P. Godefroit, 2010
• Paluxysaurus Rose, 2007
Pampadromaeus Cabreira, Schultz, Bittencourt, Soares, Fortier, L. Silva & Langer, 2011
Pamparaptor Porfiri, Calvo & D. Dos Santos, 2011
• Panamericansaurus J.O. Calvo and J.D. Porfiri, 2010
• Panoplosaurus Lambe, 1919
• Panphagia R.N. Martínez and Alcober, 2009
• Pantydraco Galton, Yates and Kermack, 2007
• Paraiguanodon Brown vide Olshevsky, 1991 [nomen nudum -> Bactrosaurus]
• Paralititan J.B. Smith, Lamanna, Locovara, Dodson, J.R. Smith, Poole, Giegengack and Attia, 2001
• Paranthodon F. Nopcsa, 1929
• Pararhabdodon Casanovas-Cladellas, Santafé-Llopis and Isidro-Llorens, 1993
• Parasaurolophus Parks, 1922
Parasaurolophus
• Parksosaurus C.M. Sternberg, 1937
• Paronychodon E.D. Cope, 1876 [nomen dubium]
• Parrosaurus Gilmore, 1945 [nomen dubium; PSS -> Hypsibema]
• Parvicursor Karhu and Rautian, 1996
• Patagonykus F.E. Novas, 1996
• Patagosaurus J.F. Bonaparte, 1979
Patagosaurus
• Pawpawsaurus Lee, 1996
• Pectinodon Carpenter, 1982
• Pedopenna Xu X. and Zhang F., 2005
• Peishansaurus Bohlin, 1953 [nomen dubium]
• Pelecanimimus Perez-Moreno, Sanz, Buscalioni, Moratalla, Ortega and Rasskin-Gutman, 1994
Pelecanimimus
• Pellegrinisaurus Salgado, 1996
• Peloroplites Carpenter, Bartlett, Bird and Barrick, 2008
• Pelorosaurus G. Mantell, 1850
Pelorosaurus
• Peltosaurus Brown vide Chure and McIntosh, 1989 (see also Glut, 1972) / E.D. Cope, 1873 -> Sauropelta
• Penelopognathus Godefroit, Li H. and Shang, 2005
• Pentaceratops Osborn, 1923
Pentaceratops 
• Phaedrolosaurus Dong Z.M., 1973
Philovenator Xu X., Zhao Q., C. Sullivan, Tan Q., Sander & Ma, 2012
Philovenator
• Phuwiangosaurus V. Martin, Buffetaut and Suteethorn, 1994
• Phyllodon Thulborn, 1973
• Piatnitzkysaurus J.F. Bonaparte, 1979
Piatnitzkysaurus
• Pinacosaurus Gilmore, 1933
• Pisanosaurus Casamiquela, 1967
• Pitekunsaurus Filippi and Garrido, 2008
• Piveteausaurus Taquet and Welles, 1977
• Planicoxa DiCroce and Carpenter, 2001
• Plateosauravus F. von Huene, 1932 [JSS -> Euskelosaurus]
• Plateosaurus von Meyer, 1837
Plateosaurus
• Platyceratops Alifanov, 2003
• Pleurocoelus O.C. Marsh, 1888
• Pleuropeltus H.G. Seeley, 1881 [nomen dubium; PSS -> Struthiosaurus]
• Pneumatoraptor Ösi, Apesteguía and Kowalewski, 2010
• Podokesaurus Talbot, 1911 [JSS -> Coelophysis]
• Poekilopleuron Eudes-Deslongchamps, 1838
• Polacanthoides F. Nopcsa, 1928 [PSS -> Hylaeosaurus]
• Polacanthus R. Owen vide [Anonymous], 1865
• Polyodontosaurus Gilmore, 1932 [JSS -> Troodon]
• Polyonax E.D. Cope, 1874 [JSS -> Triceratops]
• Ponerosteus Olshevsky, 2000 [nomen dubium]
• Pradhania Kutty, Chatterjee, Galton and P. Upchurch, 2007
• Prenocephale Maryanska and Osmólska, 1974
 Prenocephale 
• Prenoceratops Chinnery, 2004
• Priconodon O.C. Marsh, 1888 [nomen dubium]
• Priodontognathus H.G. Seeley, 1875 [nomen dubium]
• Probactrosaurus Rozhdestvensky, 1966
• Proceratops Lull, 1906 [JOS -> Ceratops]
• Proceratosaurus F. von Huene, 1926
 Proceratosaurus
• Procerosaurus Fritsch, 1905 / F. von Huene, 1902 -> Ponerosteus
• Procheneosaurus Matthew, 1920 [JSS -> Lambeosaurus]
• Procompsognathus E. Fraas, 1913
Procompsognathus
• Prodeinodon Osborn, 1924 [nomen dubium]
• Proiguanodon van den Broeck, 1900 [nomen nudum -> Iguanodon]
• Proplanicoxa: K. Carpenter and Y. Ishida, 2010
• Prosaurolophus Brown, 1916
• Protarchaeopteryx Ji Q. and Ji S., 1997
• Protiguanodon Osborn, 1923 [JSS -> Psittacosaurus]
• Protoavis Chatterjee, 1991
• Protoceratops Granger and Gregory, 1923
Protoceratops
• Protognathosaurus Olshevsky, 1991
• Protognathus Zhang Y.H., 1988 / Basilewsky, 1950 -> Protognathosaurus
• Protohadros Head, 1998
• Protorosaurus Lambe, 1914 / H. von Meyer, 1830 -> Chasmosaurus
• Protrachodon F. Nopcsa, 1923 [nomen nudum -> Orthomerus]
• Proyandusaurus Knoll, 1999
• Pseudolagosuchus Arcucci, 1987
• Psittacosaurus Osborn, 1923
Psittacosaurus
• Pteropelyx E.D. Cope, 1889 [nomen dubium]
• Pterospondylus Jaekel, 1913 [PSS -> Procompsognathus]
• Puertasaurus F.E. Novas, Salgado, Calvo and Agnolin, 2005
• Pukyongosaurus Dong Z.M., Paik and Kim H.J., 2001
• Pycnonemosaurus Kellner and Campos, 2002
• Pyroraptor Allain and Taquet, 2000
Pyroraptor 

Q

• Qantassaurus T. Rich and Vickers-Rich, 1999
• Qiaowanlong You H.-L. and Li D.-Q., 2009
• Qingxiusaurus Mo, Huang C., Zhao Z., Wang W. and Xu X., 2008
• Qinlingosaurus Xue, Zhang Y.X., Bi, Yue and Chen D., 1996
• Quaesitosaurus Bannikov and Kurzanov vide Kurzanov and Bannikov, 1983
• Quilmesaurus R.A. Coria, 2001
Quilmesaurus

R

• Rahiolisaurus F.E. Novas, S. Chatterjee, D.K. Rudra P.M. Datta, 2010
• Rahona
 Forster, S.D. Sampson, Chiappe and Krause, 1998 / Griveaud, 1975 -> Rahonavis
• Rahonavis Forster, S.D. Sampson, Chiappe and Krause, 1998
• Rajasaurus J.A. Wilson, Sereno, Srivastava, Bhatt, Khosla and Sahni, 2003
Rajasaurus
• Rapator F. von Huene, 1932 [nomen dubium]
• Rapetosaurus Rogers and Forster, 2001
• Raptorex P.C. Sereno, Tan L., S.L. Brusatte, H.J. Kriegstein, Zhao X. and K. Cloward, 2009
Ratchasimasaurus Shibata, Jintasakul & Azuma, 2011 
Ratchasimasaurus
• Rayososaurus J.F. Bonaparte, 1996
• Razanandrongobe Maganuco, Dal Sasso and Pasini, 2006 (possible crocodylomorph or theropod)
• Rebbachisaurus Lavocat, 1954
• Regnosaurus G. Mantell, 1848
• Revueltoraptor Hunt, 1994 vide Nesbitt, Irmis and Parker, 2007 [nomen ex dissertatione -> Gojirasaurus]
• Rhabdodon Matheron, 1869
• Rhadinosaurus H.G. Seeley, 1881 [nomen dubium]
• Rhodanosaurus F. Nopcsa, 1929 [JSS -> Struthiosaurus]
• Rhoetosaurus Longman, 1926
Rhoetosaurus
• Ricardoestesia P.J. Currie, Rigby and R.E. Sloan, 1990
• Rileya F. von Huene, 1902 / W.H. Ashmead, 1888 -> Rileyasuchus [nomen dubium]
• Rileyasuchus Kuhn, 1961 [nomen dubium]
• Rinchenia Barsbold, 1997 vide Osmólska, P.J. Currie and Barsbold, 2004
• Rinconsaurus Calvo and González-Riga (as González Riga), 2003
• Rioarribasaurus Hunt and S.G. Lucas, 1991 [nomen rejectum -> Coelophysis]
• Riojasaurus J.F. Bonaparte, 1969
• Rocasaurus Salgado and Azpilicueta, 2000
• Roccosaurus van Heerden vide Anderson and Cruickshank, 1978 [nomen nudum -> Melanorosaurus]
• Rubeosaurus McDonald and Horner, 2010
• Ruehleia Galton, 2001
Rugocaudia Woodruff, 2012
Rugocaudia
• Rugops Sereno, J.A. Wilson and Conrad, 2004
Rugops 
• Rutellum E. Lhuyd, 1699 [nomen oblitum; pre-Linnaean name cf. Delair and Sarjeant, 2002]
• Ruyangosaurus Lu J, Xu L, Jia S, Zhang X, Zhang J, Yang L, You H and Ji Q, 2009
Ruyangosaurus

S

• Sacisaurus Ferigolo and Langer, 2006
• Sahaliyania Godefroit, Hai, Yu and Lauters, 2008
• Saichania Maryanska, 1977
Saichania 
• Salimosaurus G. Maier, 2003 [nomen nudum -> Giraffatitan]
• Saltasaurus J.F. Bonaparte and J.E. Powell, 1980
Saltasaurus
• Saltopus F. von Huene, 1910
• Saltriosaurus Dal Sasso, 2000 [nomen nudum]
• Sanchusaurus Hisa, 1985 [nomen nudum -> Gallimimus]
• Sangonghesaurus Zhao X., 1983 [nomen nudum -> Tianchisaurus]
• Sanjuansaurus O.A. Alcober and R.N. Martínez, 2010
• Sanpasaurus Yang Z.J. (as Young C.C.), 1944 [nomen dubium]
• Santanaraptor Kellner, 1999
• Sarahsaurus T.B. Rowe, H-D Sues and R.R. Reisz, 2010
• Sarcolestes R. Lydekker, 1893
• Sarcosaurus Andrews, 1921
• Saturnalia Langer, Abdala, Richter and Benton, 1998
• Sauraechmodon H. Falconer, 1861 [nomen nudum -> Echinodon]
• Saurolophus Brown, 1912
  Sauroniops pachytholus
Saurolophus
• Sauropelta Ostrom, 1970
Sauropelta
• Saurophaganax Chure, 1995
Saurophaganax
• Saurophagus J.W. Stovall vide Ray, 1941 / W.J. Swainson 1831
• Sauroplites Bohlin, 1953 [nomen dubium]
• Sauroposeidon Wedel, Cifelli and Sanders, 2000
• Saurornithoides Osborn, 1924
Saurornithoides
• Saurornitholestes Sues, 1978
Saurornitholestes
• Scansoriopteryx Czerkas and Yuan, 2002
• Scelidosaurus R. Owen, 1859
 Scelidosaurus 
• Scipionyx Dal Sasso and Signore, 1998
Sciurumimus Rauhut, Foth, Tischlinger & Norell, 2012
Sciurumimus
• Scolosaurus F. Nopcsa, 1928
• Scrotum Brookes, 1763 [nomen oblitum; PSS -> Megalosaurus]
• Scutellosaurus Colbert, 1981
• Secernosaurus Brett-Surman, 1979
• Segisaurus Camp, 1936
• Segnosaurus Perle, 1979
Segnosaurus
• Selimanosaurus G. Maier, 2003 [nomen nudum -> Dicraeosaurus]
• Sellacoxa K. Carpenter and Y. Ishida, 2010
• Sellosaurus F. von Huene, 1908
• Serendipaceratops T. Rich and Vickers-Rich, 2003
• Shamosaurus Tumanova, 1983
• Shanag Turner, Hwang and Norell, 2007
• Shanshanosaurus Dong Z.M., 1977 [JSS -> Tarbosaurus]
• Shantungosaurus Hu C., 1973
• Shanxia P.M. Barrett, You, P. Upchurch and Burton, 1998
• Shanyangosaurus Xue, Zhang Y.H., Bi, Yue and Chen D., 1996
Shaochilong
• Shenzhouraptor Ji Q., Ji S., You, Zhang J.P., Yuan, Ji X., Li J. and Li Y.X., 2002 [possible bird]
• Shenzhousaurus Ji Q., Norell, Makovicky, Gao K., Ji S. and Yuan, 2003
• Shidaisaurus Wu X., P.J. Currie, Dong Z.M., Pan S. and Wang T., 2009
• Shixinggia Lü and Zhang B., 2005
• Shuangmiaosaurus You, Ji Q., Li J. and Li Y.X., 2003
• Shunosaurus Dong Z.M., Zhou S. and Zhang Y.H., 1983
Shunosaurus 
• Shuvosaurus Chatterjee, 1993 [dinosaurian status currently in debate]
• Shuvuuia Chiappe, Norell and Clark, 1998
Siamodon Buffetaut & Suteethorn, 2011
Siamodon
• Siamosaurus Buffetaut and Ingavat, 1986
• Siamotyrannus Buffetaut, Suteethorn and Tong, 1996
• Sigilmassasaurus D.A. Russell, 1996
• Silesaurus Dzik, 2003
• Siluosaurus Dong Z.M., 1997 [nomen dubium]
• Silvisaurus Eaton, 1960
• Similicaudipteryx He T., Wang X.L. and Zhou Z., 2008
• Sinocalliopteryx Ji S., Ji Q., Lü and Yuan, 2007
• Sinoceratops Xu X., Wang K., Zhao X. and Li D. J., 2010
• Sinocoelurus Yang Z.J. (as Young C.C.), 1942
• Sinornithoides D.A. Russell and Dong Z.M., 1994 (not 1993)
Sinornithoides 
• Sinornithomimus Kobayashi and Lü, 2003
• Sinornithosaurus Xu X., Wang X. and Wu X., 1999
Sinornithosaurus 
• Sinosauropteryx Ji Q. and Ji S., 1996
Sinosauropteryx 
• Sinosaurus Yang Z.J. (as Young C.C.), 1948
• Sinotyrannus Ji Q., Ji S.-A. and Zhang L.-J., 2009
• Sinovenator Xu X., Norell, Wang X., Makovicky and Wu X., 2002
• Sinraptor P.J. Currie and Zhao X., 1994 (not 1993)
Sinraptor 
• Sinucerasaurus Xu X. and Wang X., 2004 vide Xu X. and Norell, 2006 [JOS ->Sinusonasus]
• Sinusonasus Xu X. and Wang X., 2004
• Skorpiovenator Canale, Scanferla, Agnolin and F.E. Novas, 2008
• Sonidosaurus Xu X., Zhang X.H., Tan Q., Zhao X. and Tan L., 2006
• Sonorasaurus Ratkevich, 1998
• Sphaerotholus Williamson and Carr, 2003 [PSS -> Prenocephale]
• Sphenospondylus H.G. Seeley, 1882 [JSS -> Iguanodon]
• Spinophorosaurus K. Remes, F. Ortega, I. Fierro, U. Joger, R. Kosma, J.M.M. Ferrer, Chiappe, Dantas, Escaso, Gasulla, López, Pomares, B. Ribeiro, Sanz, Tent-Manclús, Faust, H. Joger, J. Joger, Krüger, Mudroch, Rabe, Ritter, Sommer, O.A. Ide and A. Maga, 2009
Spinops Farke, Ryan, Barrett, Tanke, Braman, Loewen & Graham, 2011
Spinops
• Spinosaurus E. Stromer, 1915
Spinosaurus 
• Spinostropheus Sereno, J.A. Wilson and Conrad, 2004
• Staurikosaurus Colbert, 1970
 Staurikosaurus 
• Stegoceras Lambe, 1902
Stegoceras
• Stegopelta Williston, 1905 [PSS -> Nodosaurus]
• Stegosaurides Bohlin, 1953 [nomen dubium]
• Stegosaurus O.C. Marsh, 1877
Stegosaurus 
• Stenonychosaurus C.M. Sternberg, 1932 [JSS -> Troodon]
• Stenopelix H. von Meyer, 1857
• Stenotholus Giffin, Gabriel and Johnson, 1988 [JSS -> Stygimoloch]
• Stephanosaurus Lambe, 1914 [nomen dubium; PSS -> Lambeosaurus]
• Stereocephalus Lambe, 1902 / Lynch-Arribalzaga, 1884 -> Euoplocephalus
• Sterrholophus O.C. Marsh, 1891 [JSS -> Triceratops]
• Stokesosaurus J.H. Madsen, 1974
• Stormbergia Butler, 2005
• Strenusaurus J.F. Bonaparte, 1969 [JSS -> Riojasaurus]
• Streptospondylus H. von Meyer, 1830 [nomen dubium]
• Struthiomimus Osborn, 1916
Struthiomimus
• Struthiosaurus E. Bunzel, 1870
Stygimoloch P.M. Galton H-D Sues, 1983 [PSS – > Pachycephalosaurus]
Stygimoloch 
• Stygivenator Olshevsky vide Olshevsky, Ford and Yamamoto, 1995 [JSS ->Tyrannosaurus]
• Styracosaurus Lambe, 1913
Styracosaurus
• Suchomimus Sereno, Beck, Dutheil, Gado, Larsson, Lyon, Marcot, Rauhut, Sadleir, Sidor, Varricchio, G.P. Wilson and J.A. Wilson, 1998
Suchomimus
• Suchosaurus R. Owen, 1841 [nomen dubium; PSS ->Baryonyx]
• “Sugiyamasaurus” Lambert, 1990 [nomen nudum]
• Sulaimanisaurus Malkani, 2006
• Supersaurus Jensen, 1985
Supersaurus 
• Suuwassea Harris and Dodson, 2004
• Suzhousaurus Li D., Peng C., You, Lamanna, Harris, Lacovara and Zhang J.P., 2007
• Symphyrophus E.D. Cope, 1878 [JSS -> Camptosaurus]
• Syngonosaurus H.G. Seeley, 1879 [nomen dubium]
• Syntarsus Raath, 1969 / L. Fairmaire, 1869 -> Megapnosaurus
• Syrmosaurus Maleev, 1952 [JSS -> Pinacosaurus]
• Szechuanoraptor Chure, 2001 [nomen ex dissertatione]
Suuwassea
• Szechuanosaurus Yang Z.J. (as Young C.C.), 1942 [nomen dubium]
Szechuanosaurus

T

• Talarurus Maleev, 1952
• Talenkauen F.E. Novas, Cambiaso and Ambrosio, 2004
• Tangvayosaurus Allain, Taquet, Battail, Dejax, Richir, Veran, Limon-Duparcmeur, Vacant, Mateus, Sayarath, Khenthavong and Phouyavong, 1999
• Tanius Wiman, 1929
• Tanycolagreus Carpenter, C.A. Miles and Cloward, 2005
• Tanystrosuchus Kuhn, 1963 [nomen dubium; PSS -> Halticosaurus orLiliensternus]
• Tarascosaurus Le Loeuff and Buffetaut, 1991
• Tarbosaurus Maleev, 1955
Tarbosaurus
• Tarchia Maryanska, 1977
• Tastavinsaurus Canudo, Royo-Torres and Cuenca-Bescós, 2008
• Tatankacephalus W.L. Parsons and K.M. Parsons, 2009
• Tatankaceratops Ott Larson, 2010
Tatankaceratops
• Tatisaurus Simmons, 1965
• Taveirosaurus Telles Antunes and Sigogneau-Russell, 1991
• Tawa S.J. Nesbitt, N.D. Smith, R.B. Irmis, A.H. Turner, A. Downs and M.A. Norell, 2009
• Tawasaurus Yang Z.J. (as Young C.C.), 1982
• Tazoudasaurus Allain, Aquesbi, Dejax, C. Meyer, Monbaron, Montenat, Richir, Rochdy, D.A. Russell and Taquet, 2004
• Technosaurus Chatterjee, 1984
• Tehuelchesaurus T. Rich, Vickers-Rich, Gimenez, Cúneo, Puerta and Vacca, 1999
• Teinurosaurus F. Nopcsa, 1928 vide F. Nopcsa, 1929 [nomen dubium]
• Telmatosaurus F. Nopcsa, 1903
• Tenantosaurus Brown vide Chure and McIntosh, 1989 [nomen nudum ->Tenontosaurus]
• Tendaguria J.F. Bonaparte, Heinrich and Wild, 2000
• Tenontosaurus Ostrom, 1970
Tenontosaurus 
Teratophoneus Carr, Williamson, Britt & Stadtman, 2011
Teratophoneus
• Tethyshadros F.M. Dalla Vecchia, 2009
• Tetragonosaurus Parks, 1931 [nomen rejectum -> Procheneosaurus]
• Texacephale N.R. Longrich, J. Sankey, and D. Tanke, 2010
• Texasetes Coombs, 1995
• Teyuwasu Kischlat, 1999
• Thecocoelurus F. von Huene, 1923 [nomen dubium]
• Thecodontosaurus Riley and Stutchbury, 1836
• Thecospondylus H.G. Seeley, 1882 [nomen dubium]
• Theiophytalia Brill and Carpenter, 2006
• Therizinosaurus Maleev, 1954
Therizinosaurus
• Therosaurus L.J. Fitzinger, 1840 [JOS -> Iguanodon]
• Thescelosaurus Gilmore, 1913
• Thespesius J. Leidy, 1856 [nomen dubium]
• Thotobolosaurus Ellenberger, 1972 [nomen nudum]
• Tianchisaurus Dong Z.M., 1993
• Tianchungosaurus Zhao X., 1983 [nomen nudum]
• Tianyulong Zheng X.T., You H.L., Xu X. and Dong Z.M., 2009
• Tianyuraptor Zheng, X., Xu, X., You, H., Zhao, Q. and Dong, Z. 2009
• Tianzhenosaurus Pang and Cheng Z., 1998
• Tichosteus E.D. Cope, 1877 [nomen dubium]
• Tienshanosaurus Yang Z.J. (as Young C.C.), 1937
• Timimus T. Rich and Vickers-Rich, 1994
• Titanosaurus R. Lydekker, 1877 [nomen dubium]
• Titanosaurus O.C. Marsh, 1877 / R. Lydekker, 1877 -> Atlantosaurus [nomen dubium]
Timimus 
• Tochisaurus Kurzanov and Osmólska, 1991
• Tomodon J. Leidy, 1865 / A. Duméril 1853 -> Diplotomodon
• Tonganosaurus
 Li K, Yang C-Y, Liu J. Wang Z-X, 2010
• Tonouchisaurus Barsbold, 1994 [nomen nudum]
• Torilion K. Carpenter and Y. Ishida, 2010 [JOS -> Barilium]
• Tornieria Sternfeld, 1911
 Torosaurus O.C. Marsh, 1891 [PSS -> Triceratops]
Torosaurus
• Torvosaurus Galton and Jensen, 1979
Torvosaurus
• Trachodon J. Leidy, 1856 [nomen dubium] (The original material has turned out to be from two different types of dinosaurs. This makes the name useless for scientific purposes.)
• Triceratops O.C. Marsh, 1889
Triceratops
• Trigonosaurus Campos, Kellner, Bertini and Santucci, 2005
• Trimucrodon Thulborn, 1973
• Troodon J. Leidy, 1856
Troodon 
• Tsaagan Norell, Clark, Turner, Makovicky, Barsbold and Rowe, 2006
• Tsagantegia Tumanova, 1993
• Tsintaosaurus Yang Z.J. (as Young C.C.), 1958
Tsintaosaurus 
• Tugulusaurus Dong Z.M., 1973
• Tuojiangosaurus Dong Z.M., Li X.M., Zhou S. and Zhang Y.H., 1977
Tuojiangosaurus
• Turanoceratops Nessov and Kaznyshkina vide Nessov, Kaznyshkina and Cherepanov, 1989
• Turiasaurus Royo-Torres, Cobos and Alcalá, 2006
• Tylocephale Maryanska and Osmólska, 1974
• Tylosteus J. Leidy, 1872 [nomen oblitum; SSS -> Pachycephalosaurus]
• Tyrannosaurus Osborn, 1905
Tyrannosaurus
• Tyrannotitan F.E. Novas, S. de Valai, P. Vickers-Rich and T. Rich, 2005
• Tyreophorus F. von Huene, 1929 [nomen nudum]
Tyrannotitan

U

• Uberabatitan Salgado and Carvalho, 2008
• Udanoceratops Kurzanov, 1992
• Ugrosaurus Cobabe and Fastovsky, 1987 [JSS -> Triceratops]
• Uintasaurus Holland, 1919 [JSS -> Camarasaurus]
• Ultrasauros Jensen vide Olshevsky, 1991 [JSS -> Supersaurus]
• Ultrasaurus Kim H.M., 1983 [nomen dubium]
• Ultrasaurus Jensen, 1985 / Kim H.M., 1983 -> Ultrasauros
• Umarsaurus Maryanska and Osmólska, 1981 vide Olshevsky, 1992 [nomen nudum -> Barsdoldia]
• Unaysaurus Leal, Azevedo, Kellner and Da Rosa, 2004
• Unenlagia Nova and Puerta, 1997
Unescoceratops Ryan, Evans, Currie, C. Brown & Brinkman, 2011 [electronic publication but here considered valid]
Unescoceratops
• Unquillosaurus J.E. Powell, 1979
• Urbacodon Averianov and Sues, 2007
• Utahceratops S.D. Sampson, M.A. Loewen, A.A. Farke, E.M. Roberts, C.A. Forster, J.A. Smith and A.L. Titus, 2010
• Utahraptor Kirkland, Burge and Gaston, 1993
Utahraptor
Uteodon McDonald, 2011

V

• Vagaceratops S.D. Sampson, M.A. Loewen, A.A. Farke, E.M. Roberts, C.A. Forster, J.A. Smith and A.L. Titus, 2010
• Valdoraptor
 Olshevsky, 1991
• Valdosaurus Galton, 1977
• Variraptor Le Loeuff and Buffetaut, 1998
• Vectensia Delair, 1982 [nomen nudum -> Hylaeosaurus]
• Vectisaurus J.W. Hulke, 1879 [JSS -> Iguanodon]
• Velafrons Gates, S.D. Sampson, Delgado deJesús, Zanno, Eberth, Hernandez-Rivera, Aguilló Martínez and Kirkland, 2007
• Velocipes F. von Huene, 1932 [nomen dubium]
• Velociraptor Osborn, 1924
Velociraptor 
• Velocisaurus J.F. Bonaparte, 1991
• Venenosaurus Tidwell, Carpenter and S. Meyer, 2001
Veterupristisaurus Rauhut, 2011
• Vitakridrinda Malkani, 2006
Vitakrisaurus Malkani, 2010
• Volkheimeria J.F. Bonaparte, 1979
• Vulcanodon Raath, 1972
Vulcanodon

W

• Wadhurstia K. Carpenter and Y. Ishida, 2010 [JOS -> Hypselospinus]
• Wakinosaurus
 Okazaki, 1992
• Walgettosuchus F. von Huene, 1932
• Walkeria Chatterjee, 1987 / J. Fleming, 1823 -> Alwalkeria
• Walkersaurus Welles, H.P. Powell and Pickering vide Pickering, 1995 [nomen nudum -> Duriavenator]
• “Wangonisaurus” G. Maier, 2003 [nomen nudum -> Giraffatitan]
• Wannanosaurus Hou, 1977
Willinakaqe Juárez Valieri, Haro, Fiorelli & Calvo, 2011 (not 2010)
• Wintonotitan Scott A. Hocknull, Mathew A. White, Travis R. Tischler, Alex G. Cook, Naomi D. Calleja, Trish Sloan, David A. Elliott, 2009
• Wuerhosaurus Dong Z.M., 1973
Wuerhosaurus 
• Wulagasaurus Godefroit, Hai, Yu and Lauters, 2008
• Wyomingraptor [Anonymous], 1997 [nomen nudum -> Allosaurus]
Wulagasaurus

X

• Xenoposeidon Taylor and Naish, 2007
• Xenotarsosaurus R.D. Martínez, Gimenez, Rodriguez and Bochatey, 1986
• Xianshanosaurus Lü, Xu L., Jiang X., Jia S., Li M., Yuan, Zhang X.L. and Ji Q., 2009
• Xiaosaurus Dong Z.M. and Tang Z., 1983
Xiaotingia Xu X., You, Du K. & Han F., 2011
Xiaotingia
• Xinghesaurus Hasegawa, Carpenter, Lamanna and Xu X., 2009 [nomen nudum]
• Xinjianogovenator Rauhut and Xu X., 2005
• Xiongguanlong Daqing Li, Mark A. Norell, Ke-Qin Gao, Nathan D. Smith and Peter J. Makovicky, 2009
• Xixianykus Xu X., Wang D-Y, C. Sullivan, D.W.E. Hone, Han F-L, Yan R-H, and Du F-M, 2010
• Xixiposaurus Sekiya T, 2010
• Xuanhanosaurus Dong Z.M., 1984
• Xuanhuaceratops Zhao X., Cheng Z., Xu X. and Makovicky, 2006
• Xuanhuasaurus Zhao X. (as Chao S.), 1985 [nomen nudum ->Xuanhuaceratops]
Xuwulong You, Li D. Q. & Liu W., 2011
Xenoposeidon

Y

• Yaleosaurus F. von Huene, 1932 [JSS -> Anchisaurus]
• Yamaceratops Makovicky and Norell, 2006
• Yandusaurus He X., 1979
• Yangchuanosaurus Dong Z.M., Chang Y.H. (as Chang Y.), Li X.M. and Zhou S., 1978
Yangchuanosaurus
• Yaverlandia Galton, 1971
• Yibinosaurus Ouyang H., 2001
• Yimenosaurus Bai vide Bai, Yang J. and Wang G.H., 1990
• Yingshanosaurus Zhou S., 1984 [nomen nudum]
• Yinlong Xu X., Forster, Clark and Mo, 2006
• Yixianosaurus Xu X. and Wang X., 2003
• Yizhousaurus S. Chatterjee, Wang T, Pan S-G, Dong Z-M, Wu X-C and P. Upchurch, 2010 [nomen nudum; in abstract]
• Yuanmousaurus Lü, Li S., Ji Q., Wang G.F., Zhang J.H. and Dong Z.M., 2006
• Yubasaurus He X., 1975 ? [nomen nudum -> Yandusaurus]
Yueosaurus Zheng W., Jin X., Shibata, Azuma & Yu F., 2011
• Yunnanosaurus Yang Z.J. (as Young C.C.), 1942
• Yunxiansaurus Zhou S., 2005 [nomen nudum]
Yurgovuchia Senter, Kirkland, DeBlieux, S. K. Madsen & Toth, 2012 
Yutyrannus Xu X., Wang K., Zhang K., Ma, Xing, C. Sullivan, Hu D., Cheng S. & Wang S., 2012
Yixianosaurus

Z

• Zalmoxes Weishampel, Jianu, Csiki and D.B. Norman, 2003
• Zanabazar Norell, M.A.; Makovicky, P.J., Bever, G.S., Balanoff, A.M., Clark, J.M., Barsbold, R. and Rowe, T., 2009
• Zapalasaurus Salgado, Carvalho and Garrido, 2006
• Zapsalis E.D. Cope, 1876 [nomen dubium]
• Zephyrosaurus Sues, 1980
• Zhejiangosaurus Lü , Jin X., Sheng, Li Y.H., Wang G.P. and Azuma, 2007
• Zhongyuansaurus Xu L., Lü, Zhang X.L., Jia S., Hu W., Zhang J.M., Wu Y. and Ji Q., 2007
• Zhuchengosaurus Zhao X., Li D., Han G., Zhao H., Liu F., Li L. and Fang X., 2007
Zhuchengtyrannus Hone, Wang K., C. Sullivan, Zhao X., Chen S., Li D., Ji S., Ji Q.& Xu X., 2011
• Zigongosaurus Hou, Chao and Chu, 1976 [JSS -> Mamenchisaurus]
• Zizhongosaurus Dong Z.M., Zhou S. and Zhang Y.H., 1983
• Zuniceratops Wolfe and Kirkland, 1998
• Zupaysaurus Arcucci and R.A. Coria, 2003
Zupaysaurus