U-V-W-X-Y-Z

U

Udanoceratops Kurzanov, 1992
    type species: U. tschizhovi Kurzanov, 1992
Ugrosaurus (N.D.) Cobabe and Fastovsky, 1987=Triceratops
   type species: U. olseni (N.D.) Cobabe and Fastosky, 1987=Triceratops ?horridus
Uintasaurus Holland, 1919=Camarasaurus
   type species: U. douglassi Holland, 1919=Camarasaurus ?supremus
Ultrasauros Olshevsky, 1991=Supersaurus
   type species: U. macintoshi (Jensen, 1985 (originally Ultrasaurus))=Supersaurus vivianae
Ultrasaurus (N.D.) Kim, 1983
    type species: U. tabriensis (N.D.) Kim, 1983
"Ultrasaurus" Jensen, 1985/Kim, 1983=Brachiosaurus, Supersaurus
   "type species": "U." macintoshi Jensen, 1985=Brachiosaurus altithorax, Supersaurus vivianae
"Umarsaurus" (N.N.) Maryanska and Osmólska, 1981 vide Oshevsky, 1992=Barsboldia
Unaysaurus Leal, Azevedo, Kellner, and Da Rosa, 2004
    type species: U. tolentinoi Leal et al., 2004
Unenlagia Novas and Puerta, 1997
    type species: U. comahuensis Novas and Puerta, 1997
    other species: U. paynemili Calvo, Porfiri, and Kellner, 2004
Unquillosaurus Powell, 1979
    type species: U. ceibalii Powell, 1979
Urbacodon Averianov and Sues, 2007
    type species: U. itemirensis Averianov and Sues, 2007
Utahraptor Kirkland, Gaston, and Burge, 1993
    type species: U. ostrommaysorum Kirkland et al., 1993

V

Valdoraptor Olshevsky, 1991
    type species: V. oweni (Lydekker, 1889 (originally Megalosaurus))
Valdosaurus Galton, 1977
    type species: V. canaliculatus (Galton, 1975 (originally Dryosaurus))
    other species: V. nigeriensis Galton and Taquet, 1982
                         "V. dextrapoda" (N.N.) Blows, 1998=unofficial faunal list name 
Variraptor (?N.D.) Le Loeuff and Buffetaut, 1998
    type species: V. mechinorum (?N.D.) Le Loeuff and Buffetaut, 1998
"Vectensia" (N.N.) Delair, 1982=Polacanthus foxii
Vectisaurus (N.D.) Hulke, 1879=?Mantellisaurus
   type species: V. valdensis (N.D.) Hulke, 1879=?Mantellisaurus atherfieldensis
Velafrons Gates, Sampson, Delgado de Jesús, Zanno, Eberth, Hernandez-Rivera, Aguillón Martínez, and Kirkland, 2007
    type species: V. coahuilensis Gates et al., 2007
Velociraptor Osborn, 1924
    type species: V. mongoliensis Osborn, 1924
    other species: V. antirrhopus (Ostrom, 1969 (originally Deinonychus))=Deinonychus antirrhopus
                         V. langstoni (Sues, 1978 (originally Saurornitholestes))=Saurornitholestes langstoni
Velocisaurus Bonaparte, 1991
    type species: V. unicus Bonaparte, 1991
Venenosaurus Tidwell, Carpenter, and Meyer, 2001
    type species: V. dicrocei Tidwell et al., 2001
Vitakridrinda Malkani, 2006
    type species: V. sulaimani Malkani, 2006  
Volkheimeria Bonaparte, 1979
    type species: V. chubutensis Bonaparte, 1979
Vulcanodon Raath, 1972
    type species: V. karibaensis Raath, 1972

W

Wakinosaurus (N.D.) Okazaki, 1992
    type species: W. satoi (N.D.) Okazaki, 1992
    other species: W. kwangshiensis (N.D.) (Hou, Yeh, and Zhao, 1975 (originally Prodeinodon))="Prodeinodon" kwangshiensis
Walgettosuchus (N.D.) Huene, 1932
    type species: W. woodwardi (N.D.) Huene, 1932
Walkeria Chatterjee, 1987/Fleming, 1823=Alwalkeria
   "type species": "W." maleriensis Chatterjee, 1987=Alwalkeria maleriensis
"Walkersaurus" (N.N.) Welles, Powell, and Pickering vide Pickering, 1995="Megalosaurus"
    "type species": "W. hesperis" (N.N.) (Waldman, 1974 (originally Megalosaurus))="Megalosaurus" hesperis
Wannanosaurus Hou, 1977
    type species: W. yansiensis Hou, 1977
Wellnhoferia Elzanowski, 2001=Archaeopteryx
    type species: W. grandis Elzanowski, 2001=Archaeopteryx lithographica
Wuerhosaurus Dong, 1973
    type species: W. homheni Dong, 1973
    other species: W. ordosensis Dong, 1993
Wulagasaurus Godefroit, Hai S., Yu T., and Lauters, 2008
    type species: W. dongi Godefroit et al., 2008
Wyleyia (N.D.) Harrison and Walker, 1973
    type species: W. valdensis (N.D.) Harrison and Walker, 1973
"Wyomingraptor" (N.N.) 1997=Allosaurus

X

Xenoposeidon Taylor and Naish, 2007
    type species: X. proneneukos Taylor and Naish, 2007
Xenotarsosaurus Martinez, Gimenez, Rodriguez, and Bochatey 1987
    type species: X. bonapartei Martinez et al., 1987
Xiaosaurus Dong and Tang, 1983
    type species: X. dashanpensis Dong and Tang, 1983
Xinjiangovenator Rauhut and Xu, 2005
    type species: X. parvus Rauhut and Xu, 2005
Xuanhanosaurus Dong, 1984
    type species: X. qilixiaenisis Dong, 1984
Xuanhuaceratops Zhao, X., Cheng, Z., Xu., X., and Makovicky, 2006
    type species: X. niei Zhao, X. et al., 2006
"Xuanhuasaurus" Zhao, 1986=Xuanhuaceratops
    "type species": "X. niei" or "X. nieii" (N.N.) Zhao, 1986=Xuanhuaceratops niei

Y

Yaleosaurus Huene, 1932=Anchisaurus
    type species: Y. colurus (Marsh, 1891 (originally Anchisaurus))=Anchisaurus polyzelus
Yamaceratops Makovicky and Norell, 2006
    type species: Y. dorngobiensis Makovicky and Norell, 2006
Yandusaurus He, 1979
    type species: Y. hongheensis He, 1979
    other species: Y. multidens He and Cai, 1983=Hexinlusaurus multidens
Yangchuanosaurus Dong, Chang, Li, and Zhou, 1978
    type species: Y. shangyouensis Dong et al., 1978
    other species: "Y. longqiaoensis" (N.N.) Li, Zhang, and Cai, 1999
                          Y. hepingensis Gao, 1992=Sinraptor dongi
                          Y. magnus Dong, Zhou, and Zhang, 1983=Y. shangyouensis
                          Y. yandonensis=Y. shangyouensis
Yaverlandia Galton, 1971
    type species: Y. bitholus Galton, 1971
"Yibinosaurus" (N.N.) Ouyang vide Anonymous, 2001
    "type species": "Y. zhoui" (N.N.) Ouyang vide Anonymous, 2001
Yimenosaurus Bai vide Bai, Yang, and Wang, 1990
    type species: Y. youngi Bai vide Bai et al., 1990
"Yingshanosaurus" (N.N.) in press
    "type species": "Y. jichuanensis" (N.N.) in press
Yinlong Xu X., Forster, Clark, and Mo J., 2006
    type species: Y. downsi Xu X. et al., 2006
Yixianosaurus Xu and Wang, 2003
    type species: Y. longimanus, Xu and Wang, 2003
Yuanmousaurus Lu, Li, Ji Q., Wang G., Zhang J., and Dong, 2006
    type species: Y. jiangyiensis Lu et al., 2006 
"Yubasaurus" (N.N.) He, 1975=Yandusaurus
Yunnanosaurus Yang, 1942
    type species: Y. huangi Yang, 1942
    other species: Y. youngi Lü J., Li T., Zhong S., Azuma, Fujita, Dong Z., and Ji Q., 2007
                          Y. robustus Yang, 1951=Y. huangi
"Yunxiansaurus hubei" (N.N.) Zhou S., 2005=museum name for ?LK Chinese sauropod

Z

Zalmoxes Weishampel, Jianu, Csiki, and Norman, 2003
    type species: Z. robustus (Nopcsa, 1899 (originally Mochlodon))
    other species: Z. shqiperorum Weishampel et al., 2003
Zanclodon (N.D.) Pleininger, 1846
   type species: Z. laevis (N.D.) Plieninger, 1846=nondinosaurian
   other species: Z. plieningeri Fraas, 1896=nondinosaurian
                         Z. schutzii (N.D.) Fraas, 1900=?Plateosaurus engelhardti
                         Z. sileiacus (N.D.) Jaekel, 1910=?Plateosaurus engelhardti
                         "Z." bavaricus (N.D.) Fraas (?vide Sandberger), 1894>Sauropodomorpha incertae sedis
                         "Z." cambrensis (?N.D.) Newton, 1899>Theropoda incertae sedis
                         "Z." quenstedti (N.D.) Koken, 1900>Sauropodomorpha incertae sedis
Zapalasaurus Salgado, Carvalho, and Gorrido, 2006
    type species: Z. bonapartei Salgado et al., 2006
Zapsalis (N.D.) Cope, 1876
   type species: Z. abradens (N.D.) Cope, 1876
Zephyrosaurus Sues, 1980
    type species: Z. schaffi Sues, 1980
Zhejiangosaurus Lu J., Jin X., Sheng Y., and Li Y., 2007
    type species: Z. lishuiensis Lu, J. et al., 2007
Zhongyuansaurus Xu L., Lu J., Zhang X., Jia S., Hu W., Zhang J., Wu Y., and Ji Q., 2007
    type species: Z. luoyangensis Xu, L. et al., 2007
Zhuchengosaurus Zhao X., Li D., Han G., Hao H., Liu F., Li L., and Fang X., 2007 
    type species: Z. maximus Zhao, X. et al., 2007
Zigongosaurus Hou, Zhao, and Chu, 1976
    type species: Z. fuxiensis Hou et al., 1976
Zizhongosaurus Dong, Zhou, and Zhang, 1983
    type species: Z. chuanchengensis Dong et al., 1983
    other species: "Z. huangshibanensis" (N.N.) Li vide Li, Zhang, and Cai, 1999
Zuniceratops Wolfe and Kirkland, 1998
    type species: Z. christopheri Wolfe and Kirkland, 1998
Zupaysaurus Arcucci and Coria, 2003
    type species: Z. rougieri Arcucci and Coria, 2003