List of dinosaur genera

Scope and terminology

A

• "Airakoraptor" – nomen nudum; KuruAjancingenia – synonym of HeyuanniaAjkaceratopsAjnabiaAkainacephalusAlamosaurus
• "Alamotyrannus" – nomen nudum
• "Alashansaurus" – nomen nudum; ShaochilongAlaskacephaleAlbalophosaurusAlbertaceratopsAlbertadromeusAlbertavenatorAlbertonykusAlbertosaurusAlbinykusAlbisaurus – subsequently found to be a non-dinosaurian reptileAlcovasaurus – possible junior synonym of MiragaiaAlectrosaurusAletopeltaAlgoasaurusAlioramusAliwalia – junior synonym of EucnemesaurusAllosaurusAlmasAlnashetriAlocodonAlpkarakushAltirhinusAltispinaxAlvarezsaurusAlwalkeriaAlxasaurusAmanasaurus – possibly non-dinosaurianAmanziaAmargasaurus
• "Amargastegos" – nomen nudumAmargatitanisAmazonsaurusAmbopteryx Ammosaurus – junior synonym of AnchisaurusAmpelognathusAmpelosaurusAmphicoelias
• "Amphicoelicaudia" – nomen nudum; synonym of Huabeisaurus
• "Amphisaurus" – preoccupied name, now known as AnchisaurusAmtocephaleAmtosaurus – possible junior synonym of TalarurusAmurosaurusAmygdalodonAnabisetiaAnalongAnasazisaurusAnatosaurus – junior synonym of EdmontosaurusAnatotitan – junior synonym of EdmontosaurusAnchiceratopsAnchiornisAnchisaurusAndesaurus
• "Andhrasaurus" – nomen nudumAngaturama – possible junior synonym of Irritator
• "Angloposeidon" – nomen nudumAngolatitanAngulomastacator
• "Angustungui" – nomen nudumAnhuilongAniksosaurusAnimantarxAnkistrodon – subsequently found to be a proterosuchid archosauriformAnkylosaurusAnodontosaurusAnomalipesAnoplosaurusAnserimimusAntarctopeltaAntarctosaurusAnteavisAntetonitrusAnthodon – subsequently found to be a pareiasaurAntrodemus – possible synonym of AllosaurusAnzuAoniraptorAorunApatodon – possible junior synonym of AllosaurusApatoraptorApatosaurusAppalachiosaurusAquilarhinusAquilopsArackarAragosaurusAralosaurusAratasaurus
• "Araucanoraptor" – nomen nudum; NeuquenraptorArchaeoceratopsArchaeocursorArchaeodontosaurusArchaeopteryx – possibly a birdArchaeoraptor – a chimaera of the bird Yanornis and the dromaeosaur MicroraptorArchaeornis – junior synonym of ArchaeopteryxArchaeornithoidesArchaeornithomimusArcovenatorArctosaurus – subsequently found to be a non-dinosaurian reptileArcusaurusArdetosaurusArenysaurusArgentinosaurusArgyrosaurusAristosaurus – possible junior synonym of MassospondylusAristosuchusArizonasaurus – subsequently found to be a rauisuchianArkansaurus ArkharaviaArrhinoceratopsArrudatitanArstanosaurusAsfaltovenatorAsiaceratopsAsiamericana – a fishAsiatosaurusAsiatyrannusAsilisaurus – possibly non-dinosaurianAstigmasauraAstrodonAstrodonius – junior synonym of AstrodonAstrodontaurus – junior synonym of AstrodonAstrophocaudiaAsylosaurusAtacamatitanAthenarAtlantosaurusAtlasaurusAtlascopcosaurusAtrociraptorAtsinganosaurusAublysodonAucasaurus
• "Augustia" – preoccupied name, now known as AgustiniaAugustynolophusAuroraceratopsAurornis AustralodocusAustralotitanAustralovenatorAustrocheirusAustroposeidonAustroraptorAustrosaurusAvaceratops
• "Avalonia" – preoccupied name, now known as AvalonianusAvalonianus – subsequently found to be a non-dinosaurian archosaurAviatyrannisAvimimusAvipes – probably a non-dinosaurian dinosauromorphAvisaurus – subsequently found to be an enantiornithine birdAzendohsaurus – subsequently found to be a non-dinosaurian archosauromorph

B

• "Bakesaurus" – nomen nudum; BactrosaurusBalaur – possibly a bird; possible junior synonym of Elopteryx
• "Balochisaurus" – nomen nudumBambiraptorBanjiBannykusBaotianmansaurusBarapasaurusBariliumBarosaurusBarrosasaurusBarsboldiaBaryonyxBashanosaurusBashunosaurusBasutodon – subsequently found to be a non-dinosaurian archosaurBathygnathus – a pelycosaur, DimetrodonBatyrosaurusBaurutitanBayannurosaurus
• "Bayosaurus" – nomen nudumBecklespinax – junior synonym of Altispinax
• "Beelemodon" – nomen nudumBegBeibeilong Beipiaognathus – chimera of several unnamed dinosaursBeipiaosaurusBeishanlongBellusaurusBelodon – subsequently found to be a phytosaurBerberosaurusBerthasauraBetasuchusBicentenariaBienosaurus
• "Bihariosaurus" – nomen nudum
• "Bilbeyhallorum" – nomen nudum; Cedarpelta
• "Biscoveosaurus" – nomen nudumBissektipeltaBistahieversorBisticeratopsBlasisaurusBlikanasaurusBolongBonapartenykusBonapartesaurusBonatitanBonitasauraBorealopeltaBorealosaurusBoreonykusBorogoviaBothriospondylusBrachiosaurusBrachyceratopsBrachylophosaurusBrachypodosaurusBrachyrophus – junior synonym of CamptosaurusBrachytaenius – subsequently found to be a metriorhynchid; junior objective synonym of Dakosaurus or GeosaurusBrachytrachelopanBradycnemeBrasileosaurus – subsequently found to be a non-dinosaurian archosaurBrasilotitanBravasaurusBravoceratopsBreviceratopsBrighstoneusBrohisaurusBrontomerus
• "Brontoraptor" – nomen nudum; synonym of TorvosaurusBrontosaurusBrontotholusBruhathkayosaurusBugenasaura – junior synonym of ThescelosaurusBuitreraptorBurianosaurusBuriolestesBustingorrytitan
• "Byranjaffia" – nomen nudum; Byronosaurus
• ''Byronosaurus''

C

• "Calamospondylus" – preoccupied name, now known as CalamosaurusCalamospondylusCaletodracoCallovosaurusCalvariusCamarasaurusCamarillasaurusCamelotiaCampananeyenCamposaurus
• "Camptonotus" – preoccupied name, now known as CamptosaurusCamptosaurus
• "Campylodon" – preoccupied name, now known as CampylodoniscusCampylodoniscusCanardia
• "Capitalsaurus" – nomen nudumCarcharodontosaurusCardiodonCariocecusCarnotaurusCaseosaurus CathartesauraCathetosaurus — possibly a species of CamarasaurusCaudipteryxCaudocoelus – junior synonym of TeinurosaurusCaulodon – junior synonym of CamarasaurusCedarosaurusCedarpeltaCedrorestesCentemodon – subsequently found to be a phytosaurCentrosaurusCerasinopsCeratonykusCeratopsCeratosaurusCeratosuchopsCetiosauriscusCetiosaurusChadititanChakisaurusChangchunsaurus
• "Changdusaurus" – nomen nudumChangmianiaChangyuraptorChaoyangsaurusCharonosaurusChasmosaurusChassternbergia – junior synonym of EdmontoniaChebsaurusChenanisaurusCheneosaurus – junior synonym of HypacrosaurusChialingosaurusChiayusaurusChienkosaurus – possible junior synonym of Szechuanosaurus
• "Chihuahuasaurus" – nomen nudum; SonorasaurusChilantaisaurusChilesaurusChindesaurus ChingkankousaurusChinshakiangosaurusChirostenotesChoconsaurusChondrosteosaurusChoyrodonChromogisaurusChuandongocoelurusChuanjiesaurusChuanqilongChubutisaurusChucarosaurusChungkingosaurusChuxiongosaurusCienciargentina
• "Cinizasaurus" – nomen nudumCionodonCitipatiCitipesCladeiodon – subsequently found to be a non-dinosaurian rauisuchian; synonym of TeratosaurusClaorhynchus – possibly TriceratopsClaosaurusClarencea – subsequently found to be a sphenosuchian; synonym of SphenosuchusClasmodosaurusClepsysaurus – subsequently found to be a phytosaur, possibly PalaeosaurusCoahuilaceratopsCoahuilasaurusCoelophysis
• "Coelosaurus" – preoccupied genus name, species "Coelosaurus" antiquusCoeluroidesCoelurosauravus – subsequently found to be a primitive diapsidCoelurusColepiocephale
• "Coloradia" – preoccupied name, now known as ColoradisaurusColoradisaurus
• "Colossosaurus" – nomen nudum; PelorosaurusComahuesaurus
• "Comanchesaurus" – nomen nudumCompsognathusCompsosuchusComptonatusConcavenatorConchoraptorCondorraptorConvolosaurusCoronosaurusCorythoraptorCorythosaurusCraspedodonCrataeomus – junior synonym of StruthiosaurusCraterosaurusCreosaurus – junior synonym of AllosaurusCrichtonpeltaCrichtonsaurusCristatusaurusCrittendenceratopsCrosbysaurus – subsequently found to be a non-dinosaurian archosauriformCruxicheirosCryolophosaurusCryptodraco – junior synonym of Cryptosaurus
• "Cryptoraptor" – nomen nudumCryptosaurusCryptovolans – junior synonym of Microraptor
• ''Cumnoria''

D

• "Dachongosaurus" – nomen nudumDaemonosaurus DahalokelyDakosaurus – subsequently found to be a metriorhynchid crocodilianDakotadonDakotaraptorDaliansaurus
• "Damalasaurus" – nomen nudumDandakosaurusDanubiosaurus – junior synonym of Struthiosaurus
• "Daptosaurus" – nomen nudum; early manuscript name for DeinonychusDarwinsaurus – junior synonym of Hypselospinus or MantellisaurusDashanpusaurusDaspletosaurusDasygnathoides – subsequently found to be a non-dinosaurian archosaur; possible junior synonym of Ornithosuchus
• "Dasygnathus" – preoccupied name, now known as DasygnathoidesDataiDatanglongDatonglongDatousaurusDaurlongDaurosaurus – synonym of KulindadromeusDaxiatitanDeinocheirusDeinodon – possibly GorgosaurusDeinonychusDelapparentia – junior synonym of IguanodonDeltadromeusDemandasaurusDenversaurusDeuterosaurus – subsequently found to be a therapsidDiabloceratops
• DiamantinasaurusDianchungosaurus – subsequently found to be a crocodilian
• "Diceratops" – preoccupied name, now known as NedoceratopsDiceratus – junior synonym of NedoceratopsDicloniusDicraeosaurusDidanodon – possible synonym of Lambeosaurus; possibly a nomen nudumDilongDilophosaurusDiluvicursorDimodosaurus – junior synonym of PlateosaurusDineobellatorDinheirosaurus – possible junior synonym of SupersaurusDinodocus
• "Dinosaurus" – preoccupied name for a junior synonym of Brithopus; now a junior synonym of PlateosaurusDinotyrannus – junior synonym Tyrannosaurus or some other tyrannosauridDiodorus – possibly non-dinosaurianDiplodocusDiplotomodonDiracodon – junior synonym of StegosaurusDiuqinDolichosuchusDollodon – junior synonym of Mantellisaurus
• "Domeykosaurus" – nomen nudum; synonym of ArackarDongbeititanDongyangopeltaDongyangosaurusDoratodon – subsequently found to be a crocodilianDornraptorDoryphorosaurus – junior synonym of KentrosaurusDraconyxDracopeltaDracoraptorDracorex – junior synonym of PachycephalosaurusDracovenatorDravidosaurus – possibly non-dinosaurianDreadnoughtusDrinker – possible junior synonym of NanosaurusDromaeosauroidesDromaeosaurusDromiceiomimus Dromicosaurus – possible junior synonym of MassospondylusDrusilasauraDryosaurusDryptosauroidesDryptosaurusDubreuillosaurusDuonychus
• "Duranteceratops" – nomen nudumDuriatitanDuriavenatorDynamosaurus – junior synonym of TyrannosaurusDynamoterrorDyoplosaurusDysalotosaurusDysganusDyslocosaurusDystrophaeusDystylosaurus – junior synonym of SupersaurusDzharacursor
• Dzharaonyx
• ''Dzharatitanis''

E

• "Echizensaurus" – nomen nudumEdmarka – junior synonym of TorvosaurusEdmontoniaEdmontosaurusEfraasiaEiniosaurusEkrixinatosaurusElachistosuchus – subsequently found to be a rhynchocephalianElaltitanElaphrosaurusElemgasemElmisaurusElopteryx – possibly a birdElosaurus – junior synonym of BrontosaurusElrhazosaurus
• "Elvisaurus" – nomen nudum; CryolophosaurusEmausaurusEmbasaurusEmiliasauraEnigmacursorEnigmosaurusEoabelisaurusEobrontosaurus – junior synonym of BrontosaurusEocarchariaEoceratops – junior synonym of ChasmosaurusEocursorEodromaeus
• "Eohadrosaurus" – nomen nudum; EolambiaEolambiaEomamenchisaurusEoneophron
• "Eoplophysis" – nomen nudumEoraptorEosinopteryx EotrachodonEotriceratopsEotyrannusEousdryosaurusEpachthosaurusEpanterias – possible synonym of Allosaurus
• "Ephoenosaurus" – nomen nudum; Machimosaurus Epicampodon – subsequently found to be a proterosuchid archosauriform, AnkistrodonEpichirostenotesEpidendrosaurus – synonym of ScansoriopteryxEpidexipteryx EquijubusErectopusErketuErliansaurusErlikosaurusErythrovenatorEshanosaurus
• "Euacanthus" – nomen nudum; junior synonym of PolacanthusEucamerotusEucentrosaurus – junior synonym of CentrosaurusEucercosaurusEucnemesaurusEucoelophysis – possibly non-dinosaurian
• "Eugongbusaurus" – nomen nudumEuhelopusEuoplocephalusEupodosaurus – subsequently found to be a nothosaur synonymous with Lariosaurus
• "Eureodon" – nomen nudum; TenontosaurusEurolimnornis – subsequently found to be a pterosaurEuronychodonEuropasaurusEuropatitanEuropeltaEuskelosaurus
• ''Eustreptospondylus''

F

• "Fendusaurus" – nomen nudum
• "Fenestrosaurus" – nomen nudum; OviraptorFerenceratopsFerganasaurus
• "Ferganastegos" – nomen nudumFerganocephaleFerrisaurus
• "Ferropectis" – nomen nudumFonaForaminacephaleFosterovenatorFostoria
• "Francoposeidon" – nomen nudumFrenguellisaurus – junior synonym of HerrerasaurusFruitadensFujianvenatorFukuiraptorFukuisaurusFukuititanFukuivenatorFulengiaFulgurotheriumFurcatoceratopsFushanosaurus
• "Fusinasus" – nomen nudum; EotyrannusFusuisaurus
• "Futabasaurus" – nomen nudum; not to be confused with the formally named plesiosaur FutabasaurusFutalognkosaurus
• ''Fylax''

G

• "Gadolosaurus" – nomen nudumGaleamopusGalesaurus – subsequently found to be a therapsidGalleonosaurusGallimimusGaltonia – subsequently found to be a pseudosuchian; possible junior synonym of RevueltosaurusGalveosaurus – synonym of GalvesaurusGalvesaurusGamatavus — possibly non-dinosaurianGandititanGannansaurus
• "Gansutitan" – nomen nudum; DaxiatitanGanzhousaurusGargoyleosaurusGarrigatitanGarudimimusGarumbatitanGasosaurusGasparinisauraGastonia
• "Gavinosaurus" – nomen nudum; EotyrannusGeminiraptorGenusaurusGenyodectesGeranosaurusGideonmantelliaGiganotosaurusGigantoraptor
• "Gigantosaurus" – preoccupied name, now known as TornieriaGigantosaurusGigantoscelus – Probable junior synonym of EuskelosaurusGigantspinosaurusGilmoreosaurus
• "Ginnareemimus" – nomen nudum; KinnareemimusGiraffatitanGlacialisaurusGlishadesGlyptodontopeltaGnathovorax Gobiceratops – possible junior synonym of BagaceratopsGobihadrosGobiraptorGobisaurusGobititanGobivenator
• "Godzillasaurus" – nomen nudum; GojirasaurusGojirasaurusGondwanatitanGondwanax — possibly non-dinosaurianGongbusaurusGongpoquansaurusGongxianosaurusGonkokenGorgosaurusGoyocephaleGraciliceratopsGraciliraptorGracilisuchus – subsequently found to be a non-dinosaurian archosaurGravitholusGremlinGresslyosaurus – possible junior synonym of PlateosaurusGriphornis – junior synonym of ArchaeopteryxGriphosaurus – junior synonym of ArchaeopteryxGryphoceratopsGryponyxGryposaurus
• "Gspsaurus" – nomen nudumGuaibasaurusGualichoGuanlongGuemesiaGwyneddosaurus – subsequently found to be a tanystrophidGyposaurus – possible junior synonym of ''Massospondylus''

H

• "Hadrosauravus" – nomen nudum; junior synonym of GryposaurusHadrosaurusHaestasaurusHagryphusHallopus – subsequently found to be a crocodylomorphHalszkaraptorHalticosaurusHamititanHanssuesia
• "Hanwulosaurus" – nomen nudumHaplocanthosaurus
• "Haplocanthus" – preoccupied name, now known as HaplocanthosaurusHaplocheirusHarenadracoHarpymimusHayaHecatasaurus – junior synonym of Telmatosaurus
• "Heilongjiangosaurus" – nomen nudumHeishansaurusHelioceratops
• "Helopus" – preoccupied name, now known as EuhelopusHeptasteornisHerbstosaurus – subsequently found to be a pterosaurHerrerasaurus HesperonychusHesperonyxHesperornithoidesHesperosaurusHeterodontosaurusHeterosaurus – possible synonym of MantellisaurusHexingHexinlusaurusHeyuanniaHierosaurusHikanodon – junior synonym of IguanodonHippodraco
• "Hironosaurus" – nomen nudum
• "Hisanohamasaurus" – nomen nudumHistriasaurusHomalocephale
• "Honghesaurus" – nomen nudum later described as Yandusaurus; name later used for a genus of marine reptileHongshanosaurus – junior synonym of PsittacosaurusHoplitosaurusHoplosaurus – junior synonym of StruthiosaurusHorshamosaurusHortalotarsus – possible junior synonym of MassospondylusHuabeisaurusHuadanosaurusHualianceratopsHuallasaurusHuanansaurusHuanghetitanHuangshanlongHuashanosaurusHuaxiagnathusHuaxiaosaurus – junior synonym of Shantungosaurus
• "Huaxiasaurus" – nomen nudum; HuaxiagnathusHuaxiazhoulongHuayangosaurusHuayracursorHudiesaurusHuehuecanauhtlusHuinculsaurusHulsanpes HungarosaurusHuxleysaurus – junior synonym of HypselospinusHylaeosaurusHylosaurus – junior synonym of HylaeosaurusHypacrosaurusHypnovenatorHypselorhachis – subsequently found to be a ctenosauriscidHypselosaurusHypselospinusHypsibemaHypsilophodon
• ''Hypsirhophus''

I

• "Ichabodcraniosaurus" – nomen nudum; ShriIchthyovenatorIgaiIgnavusaurusIgnotosaurus – possibly non-dinosaurianIguanacolossusIguanodon
• "Iguanoides" – nomen nudum; Iguanodon
• "Iguanosaurus" – nomen nudum; Iguanodon
• "Ikqaumishan" – nomen nudumIliosuchusIlokelesiaImperobator
• "Imrankhanhero" – nomen nudum
• "Imrankhanshaheen" – nomen nudumInawentuIncisivosaurusIndosaurusIndosuchus
• "Ingenia" – preoccupied name, now known as Heyuannia yanshiniIngentiaInosaurus InvictarxIrisosaurusIrritatorIsaberrysauraIsanosaurusIsasicursorIschioceratopsIschisaurus – junior synonym of Herrerasaurus
• "Ischyrosaurus" – preoccupied genus name, species Ischyrosaurus manseliIsisaurusIssiIstiorachisItaguyra – possibly non-dinosaurianItapeuasaurusItemirusIuticosaurus
• ''Iyuku''

J

• "Jeholraptor" – nomen nudumJenghizkhan – junior synonym of Tarbosaurus
• "Jensenosaurus" – nomen nudum; SupersaurusJeyawatiJianchangosaurus
• "Jiangjunmiaosaurus" – nomen nudum; MonolophosaurusJiangjunosaurusJiangshanosaurusJiangxisaurusJiangxititanJianianhualong JinbeisaurusJinchuanloong
• "Jindipelta" – nomen nudumJinfengopteryx
• "Jingia" – preoccupied name, now known as JingiellaJingiellaJingshanosaurusJintasaurusJinyunpeltaJinzhousaurusJiutaisaurusJoaquinraptorJobariaJubbulpuria – possible junior synonym of LaevisuchusJudiceratops
• "Julieraptor" – nomen nudumJurapteryx – junior synonym of Archaeopteryx
• "Jurassosaurus" – nomen nudum; TianchisaurusJuratyrant
• ''Juravenator''

K

• "Kagasaurus" – nomen nudumKaijiangosaurusKaijutitanKakuruKamuysaurusKangnasaurusKansaignathusKarongasaurusKatepensaurus
• "Katsuyamasaurus" – nomen nudum
• KayentavenatorKazaklambiaKelmayisaurusKelumapusauraKemkemia – subsequently found to be a crocodyliformKentrosaurusKentrurosaurus – junior synonym of KentrosaurusKerberosaurusKhaanKhankhuuluu
• "Khetranisaurus" – nomen nudumKholumolumoKhulsanurusKileskusKinnareemimus
• "Kitadanisaurus" – nomen nudum; Fukuiraptor
• "Kittysaurus" – nomen nudum; EotyrannusKiyacursorKlamelisaurus KolKolekenKoparionKoreaceratopsKoreanosaurus
• "Koreanosaurus" – nomen nudum; name later used formally for a genus of ornithopodKoshisaurusKosmoceratopsKotasaurusKoutalisaurus – possible junior synonym of PararhabdodonKritosaurusKryptopsKrzyzanowskisaurus – probably a pseudosuchian Kukufeldia – junior synonym of BariliumKulceratopsKulindadromeusKulindapteryx – synonym of KulindadromeusKunbarrasaurusKundurosaurus
• "Kunmingosaurus" – nomen nudumKuruKurupiKuszholia – subsequently found to be a birdKwanasaurus – possibly non-dinosaurian
• "Kyacursor" – variant spelling of "Kiyacursor"

L

• "Laelaps" – preoccupied name, now known as DryptosaurusLaevisuchusLagerpeton – subsequently found to be a non-dinosaurian pterosauromorphLagosuchus – subsequently found to be a non-dinosaurian dinosauromorphLaiyangosaurusLajasvenatorLamaceratops – possible junior synonym of BagaceratopsLambeosaurusLametasaurus LamplughsauraLanasaurus – junior synonym of Lycorhinus
• "Lancangosaurus" – variant spelling of "Lancanjiangosaurus"
• "Lancanjiangosaurus" – nomen nudumLanzhousaurusLaosaurusLapampasaurusLaplatasaurusLapparentosaurusLaquintasauraLatenivenatrix – possible junior synonym of StenonychosaurusLatirhinusLavocatisaurusLeaellynasauraLedumahadiLeinkupalLeipsanosaurus – junior synonym of Struthiosaurus
• "Lengosaurus" – nomen nudum; EotyrannusLeonerasaurusLepidocheirosaurus — junior synonym of KulindadromeusLepidusLeptoceratopsLeptorhynchosLeptospondylus – junior synonym of MassospondylusLeshansaurusLesothosaurusLessemsaurusLevnesoviaLewisuchus – possibly non-dinosaurianLexovisaurusLeyesaurusLiaoceratopsLiaoningosaurusLiaoningotitan Liaoningvenator
• "Liassaurus" – nomen nudum; possible synonym of SarcosaurusLibycosaurus – subsequently found to be an anthracothere mammalLigabueinoLigabuesaurus
• "Likhoelesaurus" – nomen nudum; possibly non-dinosaurianLiliensternusLimaysaurus
• "Limnornis" – preoccupied name, now known as Palaeocursornis
• "Limnosaurus" – preoccupied name, now known as TelmatosaurusLimusaurusLingwulongLingyuanosaurusLinhenykusLinheraptorLinhevenatorLirainosaurusLisboasaurus – subsequently found to be a crocodilianLishulongLiubangosaurusLlukalkanLohuecotitanLokiceratopsLoncosaurusLongisquama – subsequently found to be a non-dinosaurian reptileLongosaurus – junior synonym of Coelophysis
• "Lopasaurus" – nomen nudumLophorhothonLophostropheusLoricatosaurusLoricosaurusLosillasaurusLourinhanosaurusLourinhasaurusLuanchuanraptor
• "Luanpingosaurus" – nomen nudum; PsittacosaurusLucianosaurus – subsequently found to be a non-dinosaurian archosauriformLucianovenator LufengosaurusLukousaurus – possibly a crurotarsanLuoyanggiaLurdusaurusLusitanosaurus – possibly non-dinosaurianLusotitanLusovenatorLutungutali – possibly non-dinosaurianLycorhinus
• ''Lythronax''

M

• "Macroscelosaurus" – nomen nudum; junior synonym of TanystropheusMacrurosaurus
• "Madsenius" – nomen nudum; AllosaurusMagnamanusMagnapauliaMagnirostris – possible junior synonym of BagaceratopsMagnosaurus
• "Magulodon" – nomen nudumMagyarosaurusMahakalaMahuidacursorMaiasauraMaipMajungasaurusMajungatholus – junior synonym of MajungasaurusMalarguesaurusMalawisaurusMaleevosaurus – junior synonym of TarbosaurusMaleevusMaleficaMaleriraptor
• "Maltaceratops" – nomen nudumMamenchisaurusMandschurosaurusManidensManipulonyxManospondylus – synonym of TyrannosaurusMansourasaurusMantellisaurusMantellodon – junior synonym of Mantellisaurus
• "Maojandino" – nomen nudumMapusaurusMaraapunisaurusMarasuchus – subsequently found to be a non-dinosaurian dinosauromorph
• "Marisaurus" – nomen nudumMarmarospondylusMarshosaurusMartharaptorMasiakasaurusMassospondylusMatheronodonMaxakalisaurusMbiresaurusMedusaceratops
• "Megacervixosaurus" – nomen nudum
• "Megadactylus" – preoccupied name, now known as Anchisaurus
• "Megadontosaurus" – nomen nudum; MicrovenatorMegalosaurusMegapnosaurus – possible junior synonym of CoelophysisMegaraptorMeiMelanorosaurusMendozasaurusMenefeeceratopsMenucocelsiorMeraxesMercuriceratopsMeroktenos
• "Merosaurus" – nomen nudum; DornraptorMetriacanthosaurusMexidracon
• "Microcephale" – nomen nudum
• "Microceratops" – preoccupied name, now known as MicroceratusMicroceratusMicrocoelus
• "Microdontosaurus" – nomen nudumMicrohadrosaurusMicropachycephalosaurusMicroraptorMicrovenatorMierasaurus
• "Mifunesaurus" – nomen nudumMigmanychionMinimocursorMinmiMinotaurasaurus MinqariaMiragaiaMirischiaMnyamawamtukaMoabosaurusMochlodon
• "Mohammadisaurus" – nomen nudum; TornieriaMojoceratops – junior synonym of ChasmosaurusMongolosaurusMongolostegusMonkonosaurusMonocloniusMonolophosaurus
• "Mononychus" – preoccupied name, now known as MononykusMononykusMontanoceratopsMorelladonMorinosaurusMorosMorosaurus – junior synonym of CamarasaurusMorrosaurusMosaiceratops
• "Moshisaurus" – nomen nudum; possibly MamenchisaurusMurusraptorMusankwaMussaurusMuttaburrasaurusMuyelensaurus
• ''Mymoorapelta''

N

• "Natronasaurus" – invalid name, either Alcovasaurus or MiragaiaNavajoceratops Nebulasaurus
• "Nectosaurus" – preoccupied name, now known as KritosaurusNedcolbertiaNedoceratops – possible junior synonym of TriceratopsNeimongosaurus
• "Nemegtia" – preoccupied name, now known as NemegtomaiaNemegtomaiaNemegtonykusNemegtosaurus
• "Neosaurus" – preoccupied name; renamed Parrosaurus, which is now HypsibemaNeosodonNeovenatorNeuquenraptorNeuquensaurusNevadadromeusNewtonsaurus
• "Ngexisaurus" – nomen nudumNgwevuNhandumirimNicksaurus – nomen manuscriptumNieblaNigersaurusNingyuansaurusNinjatitanNiobrarasaurusNipponosaurusNoasaurusNodocephalosaurusNodosaurusNomingia – possible junior synonym of ElmisaurusNopcsaspondylusNormanniasaurusNotatesseraeraptorNothronychusNotoceratopsNotocolossusNotohypsilophodonNqwebasaurus
• "Nteregosaurus" – nomen nudum; JanenschiaNullotitan
• "Nurosaurus" – nomen nudumNuthetesNyasasaurus — possibly non-dinosaurian

O

• "Omosaurus" – preoccupied name, now known as DacentrurusOndogurvelOnychosaurus – junior synonym of Zalmoxes or Rhabdodon, or an ankylosaurianOohkotokiaOpisthocoelicaudiaOplosaurus
• "Orcomimus" – nomen nudumOrinosaurus – junior synonym of OrosaurusOrkoraptorOrnatopsOrnatotholus – junior synonym of StegocerasOrnithodesmus
• "Ornithoides" – nomen nudum; SaurornithoidesOrnitholestesOrnithomerus – possible synonym of MochlodonOrnithomimoidesOrnithomimusOrnithopsisOrnithosuchus – subsequently found to be a non-dinosaurian archosaurOrnithotarsus – junior synonym of HadrosaurusOrodromeusOrosaurus OrthogoniosaurusOrthomerusOryctodromeus
• "Oshanosaurus" – nomen nudumOsmakasaurusOstafrikasaurusOstromia Othnielia – possible junior synonym of NanosaurusOthnielosaurus – possible junior synonym of NanosaurusOtogosaurus — possibly a nomen nudumOuranosaurusOveroraptorOverosaurusOviraptor
• "Ovoraptor" – nomen nudum; VelociraptorOwenodonOxalaia – possible junior synonym of Spinosaurus
• ''Ozraptor''

P

• "Pachysaurus" – preoccupied name, now known as Pachysauriscus; possible junior synonym of PlateosaurusPachyspondylus – junior synonym of MassospondylusPachysuchusPadillasaurus
• "Pakisaurus" – nomen nudumPalaeoctonus – subsequently found to be a phytosaurPalaeocursornis – subsequently found to be an azhdarchoid pterosaur
• "Palaeolimnornis" – nomen nudum; Palaeocursornis, pterodactyloid pterosaur belonging to AzhdarchoideaPalaeopteryx – possibly a birdPalaeosauriscus – junior synonym of PalaeosaurusPalaeosaurus – subsequently found to be a non-dinosaurian reptile
• "Palaeosaurus" – preoccupied name, now known as Sphenosaurus and considered to be a non-dinosaurian procolophonidPalaeoscincusPaleosaurus – subsequently found to be a non-dinosaurian archosaur; junior synonym of PalaeosaurusPaludititanPaluxysaurus – junior synonym of SauroposeidonPampadromaeusPamparaptorPanamericansaurusPandoravenatorPanguraptorPanoplosaurusPanphagiaPantydraco – possible synonym of ThecodontosaurusPapiliovenator
• "Paraiguanodon" – nomen nudum; BactrosaurusParalitherizinosaurusParalititanParanthodonPararhabdodonParasaurolophusParaxenisaurusPareiasaurus – subsequently found to be a pareiasaurPareisactusParksosaurusParonychodonParrosaurus – now known as Hypsibema missouriensisParvicursorPatagonykusPatagopeltaPatagosaurusPatagotitanPaulodonPawpawsaurusPectinodonPedopenna PegomastaxPeishansaurusPekinosaurus – subsequently found to be a pseudosuchian; junior synonym of RevueltosaurusPelecanimimusPellegrinisaurusPeloroplitesPelorosaurus
• "Peltosaurus" – preoccupied name, now known as SauropeltaPendraigPenelopognathusPentaceratopsPerijasaurusPetrobrasaurusPetrustitanPhaedrolosaurusPhilovenatorPhuwiangosaurusPhuwiangvenatorPhyllodonPiatnitzkysaurusPicrodon – possibly non-dinosaurianPilmatueiaPinacosaurusPisanosaurus — possibly non-dinosaurianPitekunsaurusPiveteausaurusPlanicoxaPlateosauravus PlateosaurusPlatyceratops – possible junior synonym of BagaceratopsPlatypeltaPlatytholusPlesiohadrosPleurocoelus – possible junior synonym of AstrodonPleuropeltus – junior synonym of StruthiosaurusPneumatoarthrus – subsequently found to be a turtlePneumatoraptor
• "Podischion" – nomen nudum; HypacrosaurusPodokesaurusPoekilopleuronPolacanthoides – chimera of Hylaeosaurus and PolacanthusPolacanthusPolyodontosaurusPolyonaxPonerosteus – subsequently found to be a non-dinosaurian archosaurPoposaurus – subsequently found to be a non-dinosaurian archosaurPortellsaurus
• Postosuchus – subsequently found to be a rauisuchianPowellvenatorPradhaniaPrenocephalePrenoceratopsPriconodonPriodontognathusProaProbactrosaurusProbrachylophosaurusProceratops – junior synonym of CeratopsProceratosaurusProcerosaurus – subsequently found to be a tanystropheid protorosaur, Tanystropheus
• "Procerosaurus" – preoccupied name, now known as PonerosteusProcheneosaurus – junior synonym of LambeosaurusProcompsognathusProdeinodon
• "Proiguanodon" – nomen nudum; IguanodonPropanoplosaurusProplanicoxa – junior synonym of MantellisaurusProsaurolophusProtarchaeopteryxProtathlitisProtecovasaurus – subsequently found to be a non-dinosaurian archosauriformProtiguanodon – junior synonym of PsittacosaurusProtoavis – described as a bird, probably a chimera including theropod dinosaur bonesProtoceratopsProtognathosaurus
• "Protognathus" – preoccupied name, now known as ProtognathosaurusProtohadros
• "Protorosaurus" – preoccupied name, now known as ChasmosaurusProtorosaurus – subsequently found to be a non-dinosaurian reptile
• "Proyandusaurus" – nomen nudum; Hexinlusaurus.Pseudolagosuchus – possibly non-dinosaurian; a junior synonym of LewisuchusPsittacosaurusPteropelyxPterospondylusPuertasaurusPukyongosaurusPulanesauraPulaosaurusPunatitanPycnonemosaurus
• ''Pyroraptor''

Q

• "Qaikshaheen" – nomen nudumQantassaurusQianjiangsaurusQianlongQianzhousaurusQiaowanlongQijianglongQingxiusaurusQinlingosaurusQiupalongQiupanykusQuaesitosaurusQuetecsaurusQuilmesaurus
• ''Qunkasaura''

R

• "Rahona" – preoccupied name, now known as RahonavisRahonavis – possibly a birdRajasaurusRapatorRapetosaurusRaptorex – possible junior synonym of TarbosaurusRatchasimasaurusRativatesRayososaurusRazanandrongobe – subsequently found to be a crocodylomorphRebbachisaurusRegaliceratopsRegnosaurusRevueltosaurus – subsequently found to be a pseudosuchianRhabdodonRhadinosaurus – may be non-dinosaurian, possibly crocodilianRhinorex – possible synonym of GryposaurusRhodanosaurus – junior synonym of StruthiosaurusRhoetosaurusRhomaleopakhusRhopalodon – subsequently found to be a synapsidRiabininohadros Richardoestesia
• "Rileya" – preoccupied name, now known as RileyasuchusRileyasuchus – subsequently found to be a phytosaurRincheniaRinconsaurusRioarribasaurus – junior synonym of Coelophysis
• "Riodevasaurus" – nomen nudum; TuriasaurusRiojasaurusRiojasuchus – subsequently found to be a non-dinosaurian archosaurRiojavenatrixRiparovenatorRocasaurus
• "Roccosaurus" – nomen nudum; Melanorosaurus
• "Ronaldoraptor" – nomen nudum
• Rubeosaurus – junior synonym of StyracosaurusRuehleiaRugocaudiaRugopsRuixiniaRukwatitan
• "Rutellum" – nomen oblitum
• ''Ruyangosaurus''

S

• "Sabinosaurus" – nomen nudumSacisaurus – possibly non-dinosaurianSahaliyania – possible junior synonym of AmurosaurusSaichania
• "Saldamosaurus" – nomen nudumSaltasaurus
• "Saltillomimus" – nomen nudumSaltopus – possibly non-dinosaurian
• "Saltriosaurus" – nomen nudum; SaltriovenatorSaltriovenator
• "Sanchusaurus" – nomen nudum; possible Gallimimus
• "Sangonghesaurus" – nomen nudum; TianchisaurusSanjuansaurus SanpasaurusSantanaraptorSanxiasaurusSarahsaurusSaraikimasoom – nomen manuscriptum
• "Saraikisaurus" – nomen nudumSarcolestesSarcosaurusSarmientosaurusSasayamagnomusSaturnalia
• "Sauraechinodon" – nomen nudum; Echinodon
• "Sauraechmodon" – nomen nudum; Echinodon
• "Saurechinodon" – nomen nudum; EchinodonSaurolophusSauroniops SauropeltaSaurophaganax
• "Saurophagus" – preoccupied name, now known as SaurophaganaxSauroplites
• "Sauropodus" – nomen nudum; BustingorrytitanSauroposeidonSaurornithoidesSaurornitholestesSavannasaurusScansoriopteryx Scaphonyx – subsequently found to be a rhynchosaur, HyperodapedonScelidosaurusSchleitheimiaScipionyxSciurumimusScleromochlus – subsequently found to be a non-dinosaurian avemetatarsalianScolosaurusScutellosaurusSecernosaurusSefapanosaurusSegisaurusSegnosaurusSeismosaurus – junior synonym of DiplodocusSeitaadSektensaurusSellacoxa – junior synonym of BariliumSellosaurus – junior synonym of PlateosaurusSerendipaceratopsSerikornis ShamosaurusShanagShanshanosaurus – junior synonym of TarbosaurusShantungosaurusShanxiaShanyangosaurusShaochilongShenzhousaurusShidaisaurusShingopanaShishugounykusShixinggiaShriShuangbaisaurus – possible synonym of SinosaurusShuangmiaosaurusShunosaurusShuvosaurus – subsequently found to be a rauisuchianShuvuuiaSiamodon
• "Siamodracon" – nomen nudumSiamosaurusSiamotyrannusSiamraptorSiats
• "Sibirosaurus" – nomen nudum; SibirotitanSibirotitanSidersaura
• "Sidormimus" – nomen nudum
• SierraceratopsSigilmassasaurus – possible junior synonym of SpinosaurusSilesaurus – possibly non-dinosaurianSiluosaurusSilutitanSilvisaurusSimilicaudipteryxSinankylosaurusSinocalliopteryxSinocephale SinoceratopsSinocoelurus
• "Sinopelta" – nomen nudum; synonym of Sinopeltosaurus
• "Sinopeltosaurus" – nomen nudumSinopliosaurus – a pliosaur; one species, "S." fusuiensis, is actually a dinosaur that may be synonymous with SiamosaurusSinornithoidesSinornithomimusSinornithosaurusSinosauropteryxSinosaurusSinotyrannusSinovenatorSinraptorSinusonasusSirindhorna
• "Skaladromeus" – nomen nudumSkorpiovenator
• "Smilodon" – preoccupied name, now known as ZanclodonSmitanosaurusSmok — possibly non-dinosaurianSonidosaurusSonorasaurusSoriatitanSoumyasaurus – possibly non-dinosaurianSpectrovenatorSphaerotholusSphenosaurus – subsequently found to be a non-dinosaurian reptileSphenospondylus – junior synonym of MantellisaurusSpiclypeusSpicomellusSpinophorosaurusSpinopsSpinosaurusSpinostropheusSpinosuchus – subsequently found to be a non-dinosaurian reptileSpondylosoma – subsequently found to be an aphanosaurSqualodon – subsequently found to be a cetaceanStaurikosaurusStegocerasStegopeltaStegosauridesStegosaurus
• "Stegotitanus" – nomen nudum; informal replacement of StegosaurusStegourosStellasaurusStenonychosaurusStenopelixStenotholus – junior synonym of Stygimoloch, which is a possible junior synonym of PachycephalosaurusStephanosaurus
• "Stereocephalus" – preoccupied name, now known as EuoplocephalusSterrholophus – junior synonym of TriceratopsStokesosaurusStormbergia – junior synonym of LesothosaurusStrenusaurus – junior synonym of RiojasaurusStreptospondylusStruthiomimusStruthiosaurusStygimoloch – junior synonym of PachycephalosaurusStygivenator – junior synonym of TyrannosaurusStyracosaurusSuccinodon – subsequently found to be fossilized mollusc boringsSuchomimusSuchoprion – subsequently found to be a phytosaurSuchosaurus – possible synonym of Baryonyx
• "Suciasaurus" – nomen nudum
• "Sugiyamasaurus" – nomen nudum
• "Sulaimanisaurus" – nomen nudumSupersaurusSuskityrannusSuuwasseaSuzhousaurusSymphyrophus – junior synonym of CamptosaurusSyngonosaurus
• "Syntarsus" – preoccupied name, sometimes assigned to Coelophysis or MegapnosaurusSyrmosaurus – junior synonym of Pinacosaurus
• ''Szechuanosaurus''

T

• "Teihivenator" – nomen nudumTeinurosaurusTeleocrater – subsequently found to be a basal avemetatarsalianTelmatosaurus
• "Tenantosaurus" – nomen nudum; Tenontosaurus
• "Tenchisaurus" – nomen nudum; an unpublished museum name for TianchisaurusTendaguriaTengrisaurusTenontosaurusTeratophoneusTeratosaurus – subsequently found to be a non-dinosaurian archosaurTermatosaurus – subsequently found to be a phytosaurTerminocavusTethyshadrosTetragonosaurus – junior synonym of LambeosaurusTexacephaleTexasetesTeyuwasu – possible junior synonym of StaurikosaurusThanatotheristes ThanosTharosaurusThecocoelurusThecodontosaurusThecospondylusTheiophytaliaTherizinosaurusTherosaurus – synonym of IguanodonThescelosaurusThespesius
• "Thotobolosaurus" – nomen nudum; KholumolumoThyreosaurusTiamatTianchiasaurus – alternate spelling of TianchisaurusTianchisaurus
• "Tianchungosaurus" – nomen nudum; Dianchungosaurus, a crocodilianTianyulongTianyuraptorTianzhenosaurusTichosteusTienshanosaurusTietasauraTimimusTimurlengiaTitanoceratopsTitanomachyaTitanosaurus
• "Titanosaurus" – preoccupied name, now known as AtlantosaurusTlatolophusTochisaurus
• "Tomodon" – preoccupied name, now known as Diplotomodon
• TonganosaurusTongnanlongTongtianlong
• "Tonouchisaurus" – nomen nudumTorilion – junior synonym of BariliumTornieriaTorosaurusTorvosaurusTototlmimusTrachelosaurus – subsequently found to be a basal archosauromorphTrachodon TralkasaurusTransylvanosaurusTratayeniaTraukutitanTrialestes – subsequently found to be a basal crocodylomorph
• "Triassolestes" – preoccupied name, now known as TrialestesTribelesodon – junior synonym of Tanystropheus, a protorosaurTriceratopsTrierarchuncusTrigonosaurusTrimucrodonTrinisauraTriunfosaurusTroodonTsaaganTsagantegiaTsintaosaurusTuebingosaurusTugulusaurusTuojiangosaurusTuranoceratopsTuriasaurusTylocephaleTylosteus – synonym of PachycephalosaurusTyrannomimusTyrannosaurus
• ''Tyrannotitan''

U

• "Ubirajara" – nomen nudumUdanoceratopsUdelartitanUgrosaurus – junior synonym of TriceratopsUgrunaaluk – junior synonym of EdmontosaurusUintasaurus – junior synonym of CamarasaurusUltrasauros – junior synonym of Supersaurus
• "Ultrasaurus" – preoccupied name, renamed Ultrasauros which is now a junior synonym of SupersaurusUltrasaurusUlughbegsaurus
• "Umarsaurus" – nomen nudum; BarsboldiaUnaysaurusUnenlagiaUnescoceratops
• "Unicerosaurus" – nomen nudum, subsequently found to be a fishUnquillosaurusUrbacodonUriashUtahceratopsUtahraptorUteodon
• ''Utetitan''

V

• "Vectispinus" – nomen nudumVelafronsVelocipesVelociraptorVelocisaurusVenaticosuchus – subsequently found to be a non-dinosaurian archosaurVenenosaurusVespersaurusVeterupristisaurusViavenator
• "Vitakridrinda" – nomen nudum
• "Vitakrisaurus" – nomen nudumVitosauraVolgatitanVolkheimeriaVouivria
• ''Vulcanodon''

W

• "Walkeria" – preoccupied name, now known as Alwalkeria
• "Walkersaurus" – nomen nudum; DuriavenatorWamweracaudiaWannanosaurusWeewarrasaurusWellnhoferia – possibly a bird; possible junior synonym of ArchaeopteryxWendiceratopsWiehenvenatorWillinakaqe
• WintonotitanWudingloongWuerhosaurusWulagasaurusWulatelong
• "Wulatesaurus" – nomen nudum; BannykusWulongWyleyia – possibly a bird
• "Wyomingraptor" – nomen nudum; synonym of ''Allosaurus''

X

• "Xinghesaurus" – nomen nudumXingtianosaurusXingxiulongXinjiangovenatorXinjiangtitanXiongguanlongXixianykusXixiasaurusXixiposaurusXiyunykusXuanhanosaurusXuanhuaceratops
• "Xuanhuasaurus" – nomen nudum; XuanhuaceratopsXunmenglong
• ''Xuwulong''

Y

• "Yezosaurus" – nomen nudum; subsequently found to be a junior synonym of the mosasaur TaniwhasaurusYi
• "Yibinosaurus" – nomen nudumYimenosaurusYingshanosaurusYinlongYixianosaurus Yizhousaurus YongjinglongYpupiaraYuanmouraptorYuanmousaurusYuanyanglongYueosaurusYulongYunganglongYunmenglongYunnanosaurus
• "Yunxianosaurus" – nomen nudumYunyangosaurusYurgovuchiaYutyrannusYuxisaurus
• ''Yuzhoulong''

Z

• "Zunityrannus" – nomen nudum, SuskityrannusZuolongZuoyunlongZupaysaurus
• ''Zuul''