Aachenosaurus
Abdallahsaurus
Abelisaurus
Abrictosaurus
Abrosaurus
Acanthopholis
Achelousaurus
Achillesaurus
Achillobator
Acrocanthosaurus
Actiosaurus
Adamantisaurus
Adasaurus
Aegyptosaurus
Aeolosaurus
Aepisaurus
Aetonyx
Afrovenator
Agathaumas
Aggiosaurus
Agilisaurus
Agnosphitys
Agrosaurus
Agujaceratops
Agustinia
Airakoraptor
Alamosaurus
Alashansaurus
Alaskacephale
Albertaceratops
Albertosaurus
Albisaurus
Alectrosaurus
Aletopelta
Algoasaurus
Alioramus
Aliwalia
Allosaurus
Alocodon
Altirhinus
Altispinax
Alvarezsaurus — possibly a bird
Alwalkeria
Alxasaurus
Amargasaurus
Amargatitanis
Amazonsaurus
Ammosaurus
Ampelosaurus
Amphicoelias
Amtosaurus
Amurosaurus
Amygdalodon
Anabisetia
Anasazisaurus
Anatotitan
Anchiceratops
Anchisaurus
Andesaurus
Angloposeidon
Aniksosaurus
Animantarx
Ankylosaurus
Anoplosaurus
Anserimimus
Antarctopelta
Antarctosaurus
Antetonitrus
Apatosaurus
Appalachiosaurus
Aragosaurus
Aralosaurus
Archaeoceratops
Archaeodontosaurus
Archaeopteryx
Archaeornis
Archaeornithoides
Archaeornithomimus
Argentinosaurus
Argyrosaurus
Aristosuchus
Arrhinoceratops
Arstanosaurus
Asiaceratops
Asiamericana
Asiatosaurus
Astrodon
Atlasaurus
Atlascopcosaurus
Atrociraptor
Aublysodon
Aucasaurus
Auroraceratops
Australodocus
Austrosaurus
Avaceratops
Aviatyrannis
Avimimus
Bactrosaurus
Bagaceratops
Bagaraatan
Bahariasaurus
Bainoceratops
Balochisaurus
Bambiraptor
Barapasaurus
Barosaurus
Barsboldia
Baryonyx
Baurutitan
Becklespinax
Beipiaosaurus
Bellusaurus
Berberosaurus
Betasuchus
Bienosaurus
Bihariosaurus
Bissektipelta
Blikanasaurus
Bonatitan
Bonitasaura
Borealosaurus
Borogovia
Bothriospondylus
Brachiosaurus
Brachyceratops
Brachylophosaurus
Brachypodosaurus
Brachytrachelopan
Bradycneme
Breviceratops
Brohisaurus
Bruhathkayosaurus
Bugenasaura
Buitreraptor
Byronosaurus
Caenagnathasia
Calamosaurus
Callovosaurus
Camarasaurus
Camelotia
Camposaurus
Camptosaurus
Campylodoniscus
Carcharodontosaurus
Cardiodon
Carnotaurus
Caseosaurus
Cathartesaura
Caudipteryx
Cedarosaurus
Cedarpelta
Cedrorestes
Centrosaurus
Cerasinops
Ceratops
Ceratosaurus
Cetiosauriscus
Cetiosaurus
Changchunsaurus
Chaoyangsaurus
Charonosaurus
Chasmosaurus
Chebsaurus
Chialingosaurus
Chiayusaurus
Chilantaisaurus
Chindesaurus
Chingkankousaurus
Chinshakiangosaurus
Chirostenotes
Chondrosteosaurus
Chuandongocoelurus
Chuanjiesaurus
Chubutisaurus
Chungkingosaurus
Cionodon
Citipati
Claosaurus
Clasmodosaurus
Coelophysis
Coeluroides
Coelurus
Colepiocephale
Coloradisaurus
Compsognathus
Compsosuchus
Conchoraptor
Condorraptor
Corythosaurus
Craspedodon
Craterosaurus
Crichtonsaurus
Cristatusaurus
Cryolophosaurus
Cryptosaurus
Cryptovolans
Daanosaurus
Dacentrurus
Dandakosaurus
Dashanpusaurus
Daspletosaurus
Datousaurus
Deinocheirus
Deinonychus
Deltadromeus
Diclonius
Dicraeosaurus
Dilong
Dilophosaurus
Dinheirosaurus
Dinodocus
Dinosaurus — preoccupied name, now known as Gresslyosaurus
Dinotyrannus — junior synonym of Tyrannosaurus
Diplodocus
Diplotomodon
Diracodon — junior synonym of Stegosaurus
Dolichosuchus
Domeykosaurus — nomen nudum
Dongbeititan
Doratodon — actually a crocodilian
Doryphorosaurus — junior synonym (unneeded replacement name) of Kentrosaurus
Draconyx
Dracorex
Dracopelta
Dracovenator
Dravidosaurus — actually a plesiosaurian
Drinker
Dromaeosauroides
Dromaeosaurus
Dromiceiomimus
Dromicosaurus — junior synonym of Massospondylus
Dryosaurus
Dryptosauroides
Dryptosaurus
Dubreuillosaurus
Dynamosaurus — junior synonym of Tyrannosaurus
Dyoplosaurus
Dysalotosaurus — junior synonym of Dryosaurus
Dysganus
Dyslocosaurus
Dystrophaeus
Dystylosaurus — junior synonym of Supersaurus

E

Echinodon
Edmarka
Edmontonia
Edmontosaurus
Efraasia
Einiosaurus
Ekrixinatosaurus
Elachistosuchus — a rhynchocephalian
Elaphrosaurus
Elmisaurus
Elopteryx
Elosaurus — junior synonym of Apatosaurus
Elvisaurus — nomen nudum; Cryolophosaurus
Emausaurus
Embasaurus
Empaterias — misspelling of Epanterias
Enigmosaurus
Eobrontosaurus
Eoceratops — junior synonym of Chasmosaurus
Eocursor
Eohadrosaurus — nomen nudum; Eolambia
Eolambia
Eolosaurus[4] — junior synonym of Aeolosaurus
Eoraptor
Eotriceratops
Eotyrannus
Epachthosaurus
Epanterias — may be Allosaurus
Ephoenosaurus — nomen nudum; Machimosaurus (a crocodilian)
Epicampodon — actually a proterosuchid archisauriform
Epidendrosaurus
Equijubus
Erectopus
Erketu
Erliansaurus
Erlicosaurus — misspelling of Erlikosaurus
Erlikosaurus
Eshanosaurus
Euacanthus[4] — nomen nudum; junior synonym of Polacanthus
Eucamerotus
Eucentrosaurus — junior synonym (unneeded replacement name) of Centrosaurus
Eucercosaurus — possibly Anoplosaurus
Eucnemesaurus
Eucoelophysis — actually a non-dinosaurian dinosauromorph
Eugongbusaurus — nomen nudum
Euhelopus
Euoplocephalus
Eupodosaurus — a nothosaur synonymous with Lariosaurus
Eureodon[4] — nomen nudum; Tenontosaurus
Eurolimnornis — possibly a bird
Euronychodon
Europasaurus
Euskelosaurus
Eustreptospondylus

F

Fabrosaurus — possibly Lesothosaurus
Falcarius
Fenestrosaurus[4] — nomen nudum; Oviraptor
Ferganasaurus
Ferganosaurus[7] — misspelling of Ferganasaurus
Ferganocephale
Frenguellisaurus — junior synonym of Herrerasaurus
Fukuiraptor
Fukuisaurus
Fulengia
Fulgurotherium
Fusinasus — nomen nudum; Eotyrannus
Fusuisaurus
Futabasaurus — nomen nudum now identified as a plesiosaur
Futalognkosaurus
Futalongkosaurus — variant spelling of Futalognkosaurus

G

Gadolosaurus — nomen nudum
Galesaurus — actually a therapsid
Gallimimus
Galtonia — actually a pseudosuchian; possibly a junior synonym of Revueltosaurus
Galveosaurus
Galvesaurus — misspelling of Galveosaurus
Gargoyleosaurus
Garudimimus
Gasosaurus
Gasparinisaura
Gastonia
Gavinosaurus — nomen nudum; Eotyrannus
Genusaurus
Genyodectes
Geranosaurus
Giganotosaurus
Gigantoraptor
Gigantosaurus (Seeley, 1869)
Gigantosaurus (E. Fraas, 1908) — preoccupied name, now known as Tornieria, Malawisaurus, and Janenschia
Gigantoscelus — junior synonym of Euskelosaurus
Gigantspinosaurus
Gilmoreosaurus
Ginnareemimus — nomen nudum
Giraffatitan — possible junior synonym of Brachiosaurus
Glacialisaurus[8]
Glyptodontopelta
Gobipteryx — actually an enantiornithine bird
Gobisaurus
Gobititan
Godzillasaurus — nomen nudum; Gojirasaurus
Gojirasaurus
Gondwanatitan
Gongbusaurus
Gongxianosaurus
Gorgosaurus
Goyocephale
Graciliceratops
Graciliraptor
Gracilisuchus — actually a non-dinosaurian archosaur
Gravisaurus — nomen nudum; Lurdusaurus
Gravitholus
Gresslyosaurus — junior synonym of Plateosaurus
Griphornis — junior synonym of the bird Archaeopteryx
Griphosaurus — junior synonym of the bird Archaeopteryx
Gripposaurus — nomen nudum; Gyposaurus sinensis
Gryponyx — junior synonym of Massospondylus
Gryposaurus
Guaibasaurus
Guanlong
Gwyneddosaurus — a tanystrophid
Gyposaurus

H

Hadrosauravus[4] — nomen nudum; junior synonym of Gryposaurus
Hadrosaurus
Hagryphus
Hallopus — actually a crocodilian
Halticosaurus
Hanssuesia
Hanwulosaurus — nomen nudum
Haplocanthosaurus
Haplocanthus — preoccupied name, now known as Haplocanthosaurus
Harpymimus
Hecatasaurus — junior synonym of Telmatosaurus
Heilongjiangosaurus — nomen nudum
Heishansaurus
Helopus — preoccupied name, now known as Euhelopus
Heptasteornis
Herbstosaurus — actually a pterosaur
Herrerasaurus
Hesperosaurus
Heterodontosaurus
Heterosaurus — junior synonym of Iguanodon
Hexinlusaurus
Heyuannia
Hierosaurus — junior synonym of Nodosaurus
Hikanodon — junior synonym of Iguanodon
Hironosaurus — nomen nudum
Hisanohamasaurus — nomen nudum
Histriasaurus
Homalocephale
Honghesaurus — nomen nudum; Yandusaurus
Hongshanosaurus
Hoplitosaurus
Hoplosaurus — junior synonym of Struthiosaurus
Hortalotarsus — junior synonym of Massospondylus
Huabeisaurus
Huanghetitan
Huaxiagnathus
Huaxiasaurus — nomen nudum; Huaxiagnathus
Huayangosaurus
Hudiesaurus
Hulsanpes — possibly a bird
Hungarosaurus
Hylaeosaurus
Hylosaurus — junior synonym of Hylaeosaurus
Hypacrosaurus
Hypselosaurus
Hypselorhachis — nomen nudum
Hypsibema
Hypsilophodon
Hypsirophus — probable junior synonym of Stegosaurus

I

Ichabodcraniosaurus — nomen nudum
Iguanodon
Iguanoides — nomen nudum; Iguanodon
Iguanosaurus[4] — nomen nudum; Iguanodon
Iliosuchus
Ilokelesia
Incisivosaurus
Indosaurus
Indosuchus
Ingenia — preoccupied name, has not yet been renamed
Inosaurus
Irritator
Isanosaurus
Ischisaurus — junior synonym of Herrerasaurus
Ischyrosaurus — preoccupied name, has not yet been renamed
Isisaurus
Issasaurus — nomen nudum; Dicraeosaurus
Itemirus
Iuticosaurus

J

Jainosaurus
Janenschia
Jaxartosaurus
Jeholornis — actually a bird; junior synonym of Shenzhouraptor
Jeholosaurus
Jenghizkhan — junior synonym of Tarbosaurus
Jensenosaurus — nomen nudum; Supersaurus
Jiangjunmiaosaurus[4] — nomen nudum; Monolophosaurus
Jiangjunosaurus
Jiangshanosaurus
Jinfengopteryx
Jingshanosaurus
Jinzhousaurus
Jiutaisaurus
Jixiangornis — actually a bird
Jobaria
Jubbulpuria
Jurapteryx — junior synonym of the bird Archaeopteryx
Jurassosaurus — nomen nudum; Tianchisaurus
Juravenator

K

Kagasaurus — nomen nudum
Kaijiangosaurus
Kakuru
Kangnasaurus
Karongasaurus
Katsuyamasaurus — nomen nudum
Kelmayisaurus
Kentrosaurus
Kentrurosaurus — junior synonym (unneeded replacement name) of Kentrosaurus
Kerberosaurus
Khaan
Khateranisaurus[9] — misspelling of Khetranisaurus
Khetranisaurus
Kitadanisaurus — nomen nudum; Fukuiraptor
Kittysaurus — nomen nudum; Eotyrannus
Klamelisaurus
Koparion
Koreanosaurus — nomen nudum
Koreasaurus[4] — nomen nudum; probably an alternate spelling of Koreanosaurus
Kotasaurus
Koutalisaurus
Kritosaurus
Krzyzanowskisaurus — probably a pseudosuchian (?Revueltosaurus)
Kulceratops
Kunmingosaurus — may be a nomen nudum
Kuszholia — probably a bird

L

Labocania
Labrosaurus — junior synonym of Allosaurus
Laelaps — preoccupied name, now known as Dryptosaurus
Laevisuchus
Lagerpeton — actually a non-dinosaurian dinosauromorph
Lagosuchus — actually a non-dinosaurian dinosauromorph
Lamaceratops
Lambeosaurus
Lametasaurus
Lamplughsaura
Lanasaurus
Lancangjiangosaurus[4] — variant spelling of Lancanjiangosaurus
Lancangosaurus[4] — nomen nudum; Datousaurus
Lancanjiangosaurus — nomen nudum
Lanzhousaurus
Laornis — actually a bird
Laosaurus
Laplatasaurus
Lapparentosaurus
Leaellynasaura
Leipsanosaurus — junior synonym of Struthiosaurus
Lengosaurus — nomen nudum; Eotyrannus
Leptoceratops
Leptospondylus — junior synonym of Massospondylus
Lesothosaurus
Lessemsaurus
Lewisuchus — actually a non-dinosaurian dinosauromorph
Lexovisaurus
Liaoceratops
Liaoningosaurus
Liassaurus — nomen nudum
Libycosaurus — actually an anthracothere mammal
Ligabueino
Ligabuesaurus
Ligomasaurus — nomen nudum, probably Brachiosaurus or Giraffatitan
Likhoelesaurus — nomen nudum; possibly non-dinosaurian
Liliensternus
Limaysaurus
Limnornis — preoccupied name, now known as the birds Eurolimnornis and Palaeocursornis
Limnosaurus — preoccupied name, now known as Telmatosaurus
Lirainosaurus
Lisboasaurus — actually a crocodilian
Loncosaurus
Longisquama — actually some sort of non-dinosaurian reptile
Longosaurus — junior synonym of Coelophysis
Lophorhothon
Lophostropheus
Loricosaurus — possible junior synonym of Neuquensaurus
Losillasaurus
Lourinhanosaurus
Lourinhasaurus
Luanchuanraptor
Luanpingosaurus — nomen nudum; Psittacosaurus
Lucianosaurus — actually a non-dinosaurian archosauriform
Lufengocephalus — junior synonym of Lufengosaurus
Lufengosaurus
Lukousaurus
Lurdusaurus
Lusitanosaurus
Lusotitan
Lycorhinus

M

Macelognathus — actually a sphenosuchian crocodilian
Macrodontophion
Macrophalangia — junior synonym of Chirostenotes
Macroscelosaurus — nomen nudum; probable junior synonym of Tanystropheus
Macrurosaurus
Madsenius — nomen nudum
Magnirostris
Magnosaurus
Magulodon — nomen nudum
Magyarosaurus
Mahakala
Maiasaura
Majungasaurus
Majungatholus — probable junior synonym of Majungasaurus
Malawisaurus
Maleevosaurus — junior synonym of Tarbosaurus
Maleevus
Mamenchisaurus
Mandschurosaurus
Manospondylus — synonym of Tyrannosaurus
Mantellisaurus
Mapusaurus
Marasuchus — actually a non-dinosaurian dinosauromorph
Marisaurus
Marmarospondylus — probable junior synonym of Bothriospondylus
Marshosaurus
Masiakasaurus
Massospondylus
Maxakalisaurus
Medusaceratops — nomen nudum; Albertaceratops
Megacervixosaurus — nomen nudum
Megadactylus — preoccupied name, now known as Anchisaurus
Megadontosaurus[4] — nomen nudum; Microvenator
Megalosaurus
Megapnosaurus
Megaraptor
Mei
Melanorosaurus
Mendozasaurus
Merosaurus — nomen nudum
Metriacanthosaurus
Microcephale — nomen nudum
Microceratops — preoccupied name, has not yet been renamed
Microcoelus — junior synonym of Saltasaurus
Microdontosaurus — nomen nudum
Microhadrosaurus
Micropachycephalosaurus
Microraptor
Microsaurops — junior synonym of Saltasaurus
Microvenator
Mifunesaurus — nomen nudum
Minmi
Mirischia
Moabosaurus — nomen nudum
Mochlodon
Mohammadisaurus — nomen nudum; Tornieria
Mongolosaurus
Monkonosaurus
Monoclonius
Monolophosaurus
Mononychus — preoccupied name, now known as Mononykus
Mononykus — possibly a bird
Montanoceratops
Morinosaurus
Morosaurus — junior synonym of Camarasaurus
Moshisaurus[4] — nomen nudum; ?Mamenchisaurus
Mtapaiasaurus — nomen nudum, probably Brachiosaurus or Giraffatitan
Mtotosaurus — nomen nudum; Dicraeosaurus
Mussaurus
Muttaburrasaurus
Muyelensaurus — nomen nudum
Mymoorapelta

N

Naashoibitosaurus
Nanningosaurus
Nanosaurus
Nanotyrannus
Nanshiungosaurus
Nanyangosaurus
Nectosaurus — preoccupied name, now known as Kritosaurus
Nedcolbertia
Neimongosaurus
Nemegtia — preoccupied name, now known as Nemegtomaia
Nemegtomaia
Nemegtosaurus
Neosaurus — preoccupied name, now known as Parrosaurus (possible junior synonym of Hypsibema)
Neosodon
Neovenator
Neuquenraptor
Neuquensaurus
Newtonsaurus — nomen nudum
Ngexisaurus — nomen nudum
Nigersaurus
Ninghsiasaurus — nomen nudum; Pinacosaurus
Niobrarasaurus
Nipponosaurus
Noasaurus
Nodocephalosaurus
Nodosaurus
Nomingia
Nopcsaspondylus
Nothronychus
Notoceratops
Notohypsilophodon
Nouerosaurus[4] — variant spelling of Nurosaurus
Nqwebasaurus
Nteregosaurus — nomen nudum; Janenschia
Nuoerosaurus — variant spelling of Nurosaurus
Nuoersaurus — variant spelling of Nurosaurus
Nurosaurus[4] — nomen nudum
Nuthetes
Nyasasaurus — nomen nudum; ?non-dinosaurian
Nyororosaurus — nomen nudum; Dicraeosaurus

O

Ohmdenosaurus
Oligosaurus — junior synonym of Rhabdodon
Olorotitan
Omeisaurus
Omnivoropteryx - probably a bird
Omosaurus — preoccupied name, now known as Dacentrurus
Onychosaurus — synonym of Rhabdodon, or a dubious ankylosaurian
Opisthocoelicaudia
Oplosaurus
Orcomimus — nomen nudum
Orinosaurus — junior synonym (unneeded replacement name) of Orosaurus
Ornatotholus
Ornithodesmus
Ornithoides[4] — nomen nudum; Saurornithoides
Ornitholestes
Ornithomerus — junior synonym of Rhabdodon
Ornithomimoides
Ornithomimus
Ornithopsis
Ornithosuchus — actually a non-dinosaurian archosaur
Ornithotarsus — possible junior synonym of Hadrosaurus
Orodromeus
Orosaurus — ?junior synonym of Euskelosaurus
Orthogoniosaurus
Orthomerus
Oryctodromeus
Oshanosaurus — nomen nudum
Othnielia
Othnielosaurus
Otogosaurus — nomen nudum
Ouranosaurus
Oviraptor
Ovoraptor[4] — nomen nudum; Velociraptor
Ozraptor

P

Pachycephalosaurus
Pachyrhinosaurus
Pachysauriscus — probable junior synonym of Plateosaurus
Pachysaurops — probable junior synonym of Plateosaurus
Pachysaurus — preoccupied name, now known as Pachysauriscus; probable junior synonym of Plateosaurus
Pachyspondylus — probable junior synonym of Massospondylus
Pakisaurus
Palaeoctonus — actually a phytosaur
Palaeocursornis — possibly a bird
Palaeolimnornis — nomen nudum; Palaeocursornis, probable bird
Palaeopteryx — possibly a bird
Palaeosauriscus — junior synonym of Paleosaurus
Palaeosaurus (Riley & Stutchbury, 1836) — preoccupied name, now known as Paleosaurus
Palaeosaurus (Fitzinger, 1840) — preoccupied name, now known as Sphenosaurus, a non-dinosaurian procolophonid
Palaeoscincus
Paleosaurus — actually a non-dinosaurian archosaur
Paluxysaurus
Panoplosaurus
Pantydraco
Paraiguanodon[4] — nomen nudum; Bactrosaurus
Paralititan
Paranthodon
Pararhabdodon
Parasaurolophus
Pareiasaurus — actually a pareiasaur
Parhabdodon[4] — nomen nudum; misspelling of Pararhabdodon
Parksosaurus
Paronychodon
Parrosaurus — possible junior synonym of Hypsibema
Parvicursor — possibly a bird
Patagonykus — possibly a bird
Patagosaurus
Patricosaurus — actually a chimera of various non-dinosaurian reptiles
Pawpawsaurus
Pectinodon — junior synonym of Troodon
Pedopenna
Peishansaurus
Pekinosaurus — actually a pseudosuchian; possibly a junior synonym of Revueltosaurus
Pelecanimimus
Pellegrinisaurus
Pelorosaurus
Peltosaurus — preoccupied name, now known as Sauropelta
Penelopognathus
Pentaceratops
Phaedrolosaurus
Phuwiangosaurus
Phyllodon
Piatnitzkysaurus
Picrodon — junior synonym of Avalonianus
Pinacosaurus
Pisanosaurus
Piveteausaurus
Planicoxa
Plateosauravus
Plateosaurus
Platyceratops
Pleurocoelus — possibly Astrodon
Pleuropeltus — junior synonym of Struthiosaurus
Pneumatoarthrus — actually a turtle
Podokesaurus
Poekilopleuron
Polacanthoides — junior synonym of Hylaeosaurus
Polacanthus
Polyodontosaurus — junior synonym of Troodon
Polyonax
Ponerosteus
Poposaurus — actually a non-dinosaurian archosaur
Postosuchus — actually a rauisuchian
Pradhania
Prenocephale
Prenoceratops
Priconodon
Priodontognathus
Probactrosaurus
Proceratops — junior synonym (unneeded replacement name) of Ceratops
Proceratosaurus
Procerosaurus (von Huene, 1902) — actually a prolacertiform archosauromorph
Procerosaurus (Fritsch, 1905) — preoccupied name, now known as Ponerosteus
Procheneosaurus — junior synonym of Lambeosaurus
Procompsognathus
Prodeinodon
Proiguanodon — nomen nudum; Iguanodon
Prosaurolophus
Protarchaeopteryx
Protecovasaurus — actually a non-dinosaurian archosauriform
Protiguanodon — junior synonym of Psittacosaurus
Protoavis — supposedly a bird
Protoceratops
Protognathosaurus
Protognathus — preoccupied name, now known as Protognathosaurus
Protohadros
Protorosaurus (von Meyer, 1830) — actually a non-dinosaurian reptile
Protorosaurus (Lambe, 1914) — preoccupied name, now known as Chasmosaurus
Protrachodon — nomen nudum; Orthomerus
Proyandusaurus — nomen nudum; Hexinlusaurus.
Pseudolagosuchus — actually a non-dinosaurian dinosauromorph
Psittacosaurus
Pteropelyx
Pterospondylus
Puertasaurus
Pukyongosaurus
Pycnonemosaurus
Pyroraptor

Q

Qantassaurus
Qinlingosaurus
Quaesitosaurus
Quilmesaurus

R

Rachitrema — possibly an ichthyosaur
Rahona — preoccupied name, now known as Rahonavis
Rahonavis — possibly a bird
Rajasaurus
Rapator
Rapetosaurus
Rayososaurus
Razanandrongobe — may be a theropod or crocodylomorph
Rebbachisaurus
Regnosaurus
Revueltoraptor — nomen nudum; junior synonym of Gojirasaurus[6]
Revueltosaurus — actually a pseudosuchian
Rhabdodon
Rhadinosaurus — may be non-dinosaurian (?crocodilian)
Rhaetosaurus — misspelling of Rhoetosaurus
Rhodanosaurus — junior synonym of Struthiosaurus
Rhoetosaurus
Rhopalodon — actually a synapsid
Ricardoestesia — intended but unofficial spelling of Richardoestesia
Richardoestesia
Rileya — preoccupied name, now known as Rileyasuchus
Rileyasuchus — a chimera of phytosaur and Thecodontosaurus remains
Rinchenia
Rinconsaurus
Rioarribasaurus — junior synonym of Coelophysis
Riojasaurus
Riojasuchus — actually a non-dinosaurian archosaur
Rocasaurus
Roccosaurus[4] — nomen nudum; Melanorosaurus
Ruehleia
Rugops
Rutellum — pre-Linnaean name

S

Sacisaurus — probably a dinosauromorph
Saichania
Salimosaurus — nomen nudum, probably Brachiosaurus or Giraffatitan
Saltasaurus
Saltopus — probably a dinosauromorph
Saltriosaurus — nomen nudum
Sanchusaurus[4] — nomen nudum
Sangonghesaurus[4] — nomen nudum
Sanpasaurus
Santanaraptor
Sarcolestes
Sarcosaurus
Saturnalia
Sauraechinodon[4] — junior synonym of Echinodon
Sauraechmodon — nomen nudum; Echinodon
Saurolophus
Sauropelta
Saurophaganax
Saurophagus — preoccupied name, now known as Saurophaganax
Sauroplites
Sauropodus[10] — nomen nudum
Sauroposeidon
Saurornithoides
Saurornitholestes
Scansoriopteryx — possible junior synonym of Epidendrosaurus
Scaphonyx — actually a rhynchosaur
Scelidosaurus
Scipionyx
Scleromochlus — actually a non-dinosaurian avemetatarsalian
Scolosaurus — junior synonym of Euoplocephalus
Scrotum — a nomen oblitum no longer considered valid
Scutellosaurus
Secernosaurus
Segisaurus
Segnosaurus
Seismosaurus — junior synonym of Diplodocus
Selimanosaurus — nomen nudum; Dicraeosaurus
Sellosaurus
Serendipaceratops
Shamosaurus
Shanshanosaurus — junior synonym of Tarbosaurus
Shantungosaurus
Shanag
Shanxia
Shanyangosaurus
Shenzhouraptor — actually a bird, also known as Jeholornis
Shenzhousaurus
Shixinggia
Shuangmiaosaurus
Shunosaurus
Shuosaurus[4] — misspelling of Shunosaurus
Shuvosaurus — actually a rauisuchian
Shuvuuia — possibly a bird
Siamosaurus
Siamotyrannus
Sigilmassasaurus
Silesaurus — probably a dinosauromorph
Siluosaurus
Silvisaurus
Sinocalliopteryx
Sinocoelurus
Sinornithoides
Sinornithomimus
Sinornithosaurus
Sinosauropteryx
Sinosaurus
Sinovenator
Sinraptor
Sinucerasaurus — junior synonym of Sinusonasus
Sinusonasus
Smilodon — preoccupied name, now known as Zanclodon
Sonidosaurus
Sonorasaurus
Sphaerotholus
Sphenosaurus — actually a non-dinosaurian reptile
Sphenospondylus — junior synonym of Iguanodon
Spinosaurus
Spinostropheus
Spinosuchus — actually a non-dinosaurian reptile
Spondylosoma — possibly a rauisuchian
Squalodon — actually a cetacean
Staurikosaurus
Stegoceras
Stegopelta
Stegosaurides
Stegosauroides[4] — misspelling of Stegosaurides
Stegosaurus
Stenonychosaurus — junior synonym of Troodon
Stenopelix
Stenotholus — junior synonym of Stygimoloch
Stephanosaurus — junior synonym of Lambeosaurus
Stereocephalus — preoccupied name, now known as Euoplocephalus
Stereosaurus — nomen nudum; possibly a plesiosaur
Sterrholophus — junior synonym of Triceratops
Stokesosaurus
Stormbergia
Strenusaurus — junior synonym of Riojasaurus
Streptospondylus
Struthiomimus
Struthiosaurus
Stygimoloch
Stygivenator — junior synonym of Tyrannosaurus
Styracosaurus
Succinodon — actually fossilized mollusc borings
Suchomimus
Suchosaurus — originally described as a crocodile, possibly a spinosaurid
Suchoprion — actually a phytosaur
Sugiyamasaurus — nomen nudum
Sulaimanisaurus
Sulaimansaurus[9] — misspelling of Sulaimanisaurus
Supersaurus
Suuwassea
Suzhousaurus
Symphyrophus — junior synonym of Camptosaurus
Syngonosaurus — junior synonym of Acanthopholis
Syntarsus — preoccupied name, now known as Megapnosaurus
Syrmosaurus — junior synonym of Pinacosaurus
Szechuanoraptor — nomen nudum
Szechuanosaurus

T

Talarurus
Talenkauen
Tangvayosaurus
Tanius
Tanycolagreus
Tanystropheus — actually a prolacertiform archosauromorph
Tanystrosuchus — possible junior synonym of Halticosaurus or Liliensternus
Tapinocephalus — actually a therapsid
Tarascosaurus
Tarbosaurus
Tarchia
Tatisaurus
Taveirosaurus
Tawasaurus — junior synonym of Lufengosaurus
Tazoudasaurus
Technosaurus — possibly a dinosauromorph
Tecovasaurus — actually a non-dinosaurian archosauriform
Tehuelchesaurus
Teinurosaurus
Teleocrater — nomen nudum; possibly non-dinosaurian
Telmatosaurus
Tenantosaurus[4] — nomen nudum; Tenontosaurus
Tenchisaurus[11] — nomen nudum; actually an unpublished museum name for Tianchisaurus
Tendaguria
Tenontosaurus
Teratosaurus — actually a non-dinosaurian archosaur
Termatosaurus — actually a phytosaur, with some Internet sources accidentally transposing species of Tetragonosaurus onto it
Tetragonosaurus — junior synonym of Lambeosaurus
Texasetes
Teyuwasu
Thecocoelurus
Thecodontosaurus
Thecospondylus
Theiophytalia
Therizinosaurus
Therosaurus — junior synonym of Iguanodon
Thescelosaurus
Thespesius — possibly Edmontosaurus
Thotobolosaurus — nomen nudum
Tianchisaurus
Tianchungosaurus — nomen nudum; Dianchungosaurus (crocodilian)
Tianzhenosaurus
Tichosteus
Tienshanosaurus
Timimus
Titanosaurus (Lydekker, 1877)
Titanosaurus (Marsh, 1877) — preoccupied name, now known as Atlantosaurus
Tochisaurus
Tomodon — preoccupied name, now known as Diplotomodon
Tonouchisaurus — nomen nudum
Tornieria
Torosaurus
Torvosaurus
Trachodon
Trialestes — actually a crocodilian
Triassolestes — preoccupied name, now known as Trialestes
Tribelesodon — actually Tanystropheus, a prolacertiform archosauromorph
Triceratops
Trigonosaurus
Trimucrodon
Troodon
Tsaagan
Tsagantegia
Tsintaosaurus
Tugulusaurus
Tuojiangosaurus
Turanoceratops
Turiasaurus
Tylocephale
Tylosteus — synonym of Pachycephalosaurus
Tyrannosaurus
Tyrannotitan
Tyreophorus — nomen nudum, probably a typographical error for thyreophoran

U

Udanoceratops
Ugrosaurus — probably junior synonym of Triceratops
Uintasaurus — junior synonym of Camarasaurus
Ultrasauros — junior synonym of Supersaurus
Ultrasaurus (H. M. Kim, 1983)
Ultrasaurus (Jensen, 1985) — preoccupied name, now known as Ultrasauros
Umarsaurus[4] — nomen nudum; Barsboldia
Unaysaurus
Unenlagia
Unicerosaurus — nomen nudum, actually a fish
Unquillosaurus
Urbacodon
Utahraptor

V

Valdoraptor
Valdosaurus
Variraptor
Vectensia — junior synonym of Hylaeosaurus
Vectisaurus — junior synonym of Iguanodon
Velafrons
Velocipes
Velociraptor
Velocisaurus
Venaticosuchus — actually a non-dinosaurian archosaur
Venenosaurus
Vitakridrinda[12]
Vitaridrinda[9] — misspelling of Vitakridrinda
Volkheimeria
Vulcanodon

W

Wakinosaurus
Walgettosuchus
Walkeria — preoccupied name, now known as Alwalkeria
Walkersaurus — nomen nudum
Wangonisaurus — nomen nudum, probably Brachiosaurus or Giraffatitan
Wannanosaurus
Wellnhoferia — actually a bird, possible junior synonym of Archaeopteryx
Wuerhosaurus
Wyleyia — probably a bird
Wyomingraptor — nomen nudum

X

Xenoposeidon [13]
Xenotarsosaurus
Xiaosaurus
Xinjiangovenator
Xuanhanosaurus
Xuanhuaceratops
Xuanhuasaurus[4] — nomen nudum; Xuanhuaceratops

Y

Yaleosaurus — junior synonym of Anchisaurus
Yamaceratops
Yandusaurus
Yangchuanosaurus
Yanornis — actually a bird
Yaverlandia
Yaxartosaurus[4] — misspelling of Jaxartosaurus
Yezosaurus — nomen nudum; non-dinosaurian
Yibinosaurus — nomen nudum
Yimenosaurus
Yingshanosaurus — nomen nudum
Yinlong
Yixianosaurus
Yuanmousaurus
Yubasaurus — nomen nudum; Yandusaurus
Yunnanosaurus
Yunxiansaurus — nomen nudum

Z

Zalmoxes
Zanclodon — non-dinosaurian (in part), some species referred to Megalosaurus and Plateosaurus
Zapalasaurus
Zapsalis — junior synonym of Paronychodon
Zatomus — actually a non-dinosaurian archosaur
Zephyrosaurus
Zhejiangosaurus
Zhongyuansaurus
Zhuchengosaurus
Zigongosaurus — possible junior synonym of Mamenchisaurus
Zizhongosaurus
Zuniceratops
Zupaysaurus