The following is a list of dinosaurs. Some of them, such as Archaeopteryx, are considered to be birds. Some doubtful Mesozoic birds are included in this list.

A

 Aachenosaurus – a piece of petrified wood
 Aardonyx
 Abdallahsaurus – nomen nudum, probably Giraffatitan
 Abelisaurus
 Abrictosaurus
 Abrosaurus
 Abydosaurus
 Acantholipan
 Acanthopholis
 Achelousaurus
 Acheroraptor
 Achillesaurus
 Achillobator
 Acristavus
 Acrocanthosaurus
 Acrotholus
 Actiosaurus – a choristoderan
 Adamantisaurus
 Adasaurus
 Adelolophus
 Adeopapposaurus
 Adynomosaurus
 Aegyptosaurus
 Aeolosaurus
 Aepisaurus
 Aepyornithomimus
 Aerosteon
 Aetonyx – possible junior synonym of Massospondylus
 Afromimus
 Afrovenator
 Agathaumas - possible synonym of Triceratops
 Aggiosaurus – a metriorhynchid crocodilian
 Agilisaurus
 Agnosphitys - a silesaurid dinosauromorph
 Agrosaurus – probably a junior synonym of Thecodontosaurus
 Agujaceratops
 Agustinia
 Ahshislepelta
 Airakoraptor - nomen nudum
 Ajancingenia - synonym of Heyuannia
 Ajkaceratops
 Akainacephalus
 Alamosaurus
 Alaskacephale
 Albalophosaurus
 Albertaceratops
 Albertadromeus
 Albertavenator
 Albertonykus
 Albertosaurus
 Albinykus
 Albisaurus – a non-dinosaurian reptile
 Alcovasaurus
 Alectrosaurus
 Aletopelta
 Algoasaurus
 Alioramus

 Aliwalia – junior synonym of Eucnemesaurus
 Allosaurus
 Almas
 Alnashetri
 Alocodon
 Altirhinus
 Altispinax
 Alvarezsaurus
 Alwalkeria
 Alxasaurus
 Amargasaurus
 Amargastegos - nomen nudum
 Amargatitanis
 Amazonsaurus
 ‘’Ambopteryx’’
 Ammosaurus - junior synonym of Anchisaurus
 Ampelosaurus
 Amphicoelias
 Amphicoelicaudia – nomen nudum; possibly Huabeisaurus
 Amphisaurus – preoccupied name, now known as Anchisaurus
 Amtocephale
 Amtosaurus – possibly Talarurus
 Amurosaurus
 Amygdalodon
 Anabisetia
 Anasazisaurus
 Anatosaurus – junior synonym of Edmontosaurus
 Anatotitan – junior synonym of Edmontosaurus
 Anchiceratops
 Anchiornis
 Anchisaurus
 Andesaurus
 Andhrasaurus - nomen nudum
 Angaturama – probable junior synonym of Irritator
 Angloposeidon – nomen nudum
 Angolatitan
 Angulomastacator
 Anhuilong
 Aniksosaurus
 Animantarx
 Ankistrodon – a proterosuchid archosauriform
 Ankylosaurus
 Anodontosaurus
 Anomalipes
 Anoplosaurus
 Anserimimus
 Antarctopelta
 Antarctosaurus

 Antetonitrus
 Anthodon – a pareiasaur
 Antrodemus – possibly a synonym of Allosaurus
 Anzu
 Aoniraptor
 Aorun
 Apatodon – possibly a junior synonym of Allosaurus
 Apatoraptor
 Apatosaurus
 Appalachiosaurus
 ‘’Aquilarhinus’’
 Aquilops
 Aragosaurus
 Aralosaurus
 Araucanoraptor – nomen nudum; Neuquenraptor
 Archaeoceratops
 Archaeodontosaurus
 Archaeopteryx
 Archaeoraptor – a chimaera of the bird Yanornis and the dromaeosaur Microraptor
 Archaeornis – junior synonym of Archaeopteryx
 Archaeornithoides
 Archaeornithomimus
 Arcovenator
 Arctosaurus – some sort of non-dinosaurian reptile
 Arcusaurus
 Arenysaurus
 Argentinosaurus
 Argyrosaurus
 Aristosaurus – junior synonym of Massospondylus
 Aristosuchus
 Arizonasaurus – a rauisuchian
 Arkansaurus 
 Arkharavia
 Arrhinoceratops
 Arstanosaurus
 Asiaceratops
 Asiamericana –  a fish
 Asiatosaurus
 Astrodon
 Astrodonius – junior synonym of Astrodon
 Astrodontaurus – junior synonym of Astrodon
 Astrophocaudia
 Asylosaurus
 Atacamatitan
 Atlantosaurus
 Atlasaurus
 Atlascopcosaurus
 Atrociraptor
 Atsinganosaurus
 Aublysodon

 Aucasaurus
 Augustia – preoccupied name, now known as Agustinia
 Augustynolophus
 Auroraceratops
 Aurornis
 Australodocus
 Australovenator
 Austrocheirus
 Austroposeidon
 Austroraptor
 Austrosaurus
 Avaceratops
 Avalonia – preoccupied name, now known as Avalonianus
 Avalonianus – a non-dinosaurian archosaur
 Aviatyrannis
 Avimimus
 Avipes – probably a non-dinosaurian dinosauromorph
 Avisaurus – an enantiornithine bird
 Azendohsaurus – a non-dinosaurian archosauromorph

B

 Baalsaurus
 Bactrosaurus
 Bagaceratops
 Bagaraatan
 Bagualosaurus
 Bahariasaurus
 Bainoceratops
 Bajadasaurus
 Bakesaurus – nomen nudum
 Balaur
 Balochisaurus
 Bambiraptor
 Banji
 Bannykus
 Baotianmansaurus
 Barapasaurus
 Barilium
 Barosaurus

 Barrosasaurus
 Barsboldia
 Baryonyx
 Bashunosaurus – nomen nudum, Datousaurus
 Basutodon –  a non-dinosaurian archosaur
 Bathygnathus –  a pelycosaur, Dimetrodon
 Batyrosaurus
 Baurutitan
 Bayannurosaurus
 Bayosaurus – nomen nudum
 Becklespinax - junior synonym of Altispinax
 Beelemodon – nomen nudum
 Beibeilong 
 Beipiaognathus - possibly a hoax
 Beipiaosaurus
 Beishanlong
 Bellusaurus
 Belodon –  a phytosaur
 Berberosaurus
 Betasuchus
 Bicentenaria
 Bienosaurus
 Bihariosaurus - possibly invalid
 Bilbeyhallorum – nomen nudum; Cedarpelta
 Bissektipelta
 Bistahieversor
 Blancocerosaurus – nomen nudum, probably Giraffatitan
 Blasisaurus
 Blikanasaurus
 Bolong
 Bonapartenykus
 Bonapartesaurus
 Bonatitan
 Bonitasaura
 Borealopelta
 Borealosaurus
 Boreonykus
 Borogovia
 Bothriospondylus
 Brachiosaurus
 Brachyceratops
 Brachylophosaurus
 Brachypodosaurus
 Brachyrophus – junior synonym of Camptosaurus
 Brachytaenius –  a metriorhynchid; junior objective synonym of Dakosaurus
 Brachytrachelopan
 Bradycneme
 Brasileosaurus –  a non-dinosaurian archosaur
 Brasilotitan
 Bravoceratops
 Breviceratops
 Brohisaurus Brontomerus Brontoraptor – nomen nudum, probably Torvosaurus Brontosaurus
 Bruhathkayosaurus
 Bugenasaura – junior synonym of Thescelosaurus
 Buitreraptor
 Burianosaurus
 Buriolestes
 Byranjaffia – nomen nudum; Byronosaurus
 Byronosaurus

C

 Caenagnathasia
 Caenagnathus
 Caihong
 Calamosaurus
 Calamospondylus
 "Calamospondylus" – preoccupied name, now known as Calamosaurus
 Callovosaurus
 Camarasaurus
 Camarillasaurus
 Camelotia
 Camposaurus
 "Camptonotus" – preoccupied name, now known as Camptosaurus
 Camptosaurus
 "Campylodon" – preoccupied name, now known as Campylodoniscus
 Campylodoniscus
 Canardia
 "Capitalsaurus" – nomen nudum
 Carcharodontosaurus
 Cardiodon
 Carnotaurus
 Caseosaurus
 Cathartesaura
 Cathetosaurus
 Caudipteryx
 Caudocoelus – junior synonym of Teinurosaurus
 Caulodon – junior synonym of Camarasaurus
 Cedarosaurus
 Cedarpelta
 Cedrorestes
 Centemodon –  a phytosaur
 Centrosaurus
 Cerasinops
 Ceratonykus
 Ceratops
 Ceratosaurus
 Cetiosauriscus
 Cetiosaurus
 Changchunsaurus
 "Changdusaurus" – nomen nudum
 Changyuraptor
 Chaoyangsaurus
 Charonosaurus
 Chasmosaurus
 Chassternbergia – junior synonym of Edmontonia
 Chebsaurus
 Chenanisaurus
 Cheneosaurus – junior synonym of Hypacrosaurus
 Chialingosaurus
 Chiayusaurus
 Chienkosaurus –  a chimera of crocodyliform and theropod (Szechuanosaurus) remains
 "Chihuahuasaurus" – nomen nudum; Sonorasaurus
 Chilantaisaurus
 Chilesaurus
 Chindesaurus
 Chingkankousaurus

 Chinshakiangosaurus
 Chirostenotes
 Choconsaurus
 Chondrosteosaurus
 Choyrodon
 Chromogisaurus
 Chuandongocoelurus
 Chuanjiesaurus
 Chuanqilong
 Chubutisaurus
 Chungkingosaurus
 Chuxiongosaurus
 "Cinizasaurus" – nomen nudum
 Cionodon
 Citipati
 Cladeiodon –  a non-dinosaurian rauisuchian (Teratosaurus)
 Claorhynchus – possibly Triceratops
 Claosaurus
 Clarencea –  a sphenosuchian (Sphenosuchus)
 Clasmodosaurus
 Clepsysaurus –  a phytosaur, Palaeosaurus
 Coahuilaceratops
 Coelophysis
 "Coelosaurus" – preoccupied
 Coeluroides
 Coelurosauravus –  a primitive diapsid
 Coelurus
 Colepiocephale
 "Coloradia" – preoccupied name, now known as Coloradisaurus
 Coloradisaurus
 "Colossosaurus" – nomen nudum; Pelorosaurus
 Comahuesaurus
 "Comanchesaurus" – nomen nudum
 Compsognathus
 Compsosuchus
 Concavenator
 Conchoraptor
 Condorraptor
 Convolosaurus
 Coronosaurus
 Corythoraptor
 Corythosaurus
 Craspedodon
 Crataeomus – junior synonym of Struthiosaurus
 Craterosaurus
 Creosaurus – junior synonym of Allosaurus
 Crichtonpelta
 Crichtonsaurus
 Cristatusaurus
 Crittendenceratops
 Crosbysaurus –  a non-dinosaurian archosauriform
 Cruxicheiros
 Cryolophosaurus
 Cryptodraco – junior synonym (unneeded replacement name) of Cryptosaurus
 "Cryptoraptor" – nomen nudum
 Cryptosaurus
 Cryptovolans – junior synonym of Microraptor
 Cumnoria

D

 Daanosaurus
 Dacentrurus
 "Dachongosaurus" – nomen nudum
 Daemonosaurus
 Dahalokely
 Dakosaurus –  a metriorhynchid crocodilian
 Dakotadon
 Dakotaraptor
 Daliansaurus
 "Damalasaurus" – nomen nudum
 Dandakosaurus
 Danubiosaurus – junior synonym of Struthiosaurus
 "Daptosaurus" – nomen nudum; early manuscript name for Deinonychus
 Darwinsaurus
 Dashanpusaurus
 Daspletosaurus
 Dasygnathoides –  a non-dinosaurian archosaur, possible junior synonym of Ornithosuchus
 "Dasygnathus" – preoccupied name, now known as Dasygnathoides
 Datanglong
 Datonglong
 Datousaurus
 Daurosaurus – synonym of Kulindadromeus
 Daxiatitan
 Deinocheirus
 Deinodon – possibly Gorgosaurus
 Deinonychus
 Delapparentia – probable junior synonym of Iguanodon
 Deltadromeus
 Demandasaurus
 Denversaurus
 Deuterosaurus –  a therapsid
 Diabloceratops
Diamantinasaurus
 Dianchungosaurus –  a crocodilian
 "Diceratops" – preoccupied name, now known as Nedoceratops
 Diceratus – junior synonym of Nedoceratops
 Diclonius
 Dicraeosaurus
 Didanodon – synonym of Lambeosaurus; possibly a nomen nudum
 Dilong
 Dilophosaurus
 Diluvicursor
 Dimodosaurus – junior synonym of Plateosaurus
 Dinheirosaurus – probable junior synonym of Supersaurus
 Dinodocus
 "Dinosaurus" – preoccupied name; now a junior synonym of Plateosaurus
 Dinotyrannus – junior synonym of Tyrannosaurus
 Diplodocus
 Diplotomodon
 Diracodon – junior synonym of Stegosaurus
 Dolichosuchus
 Dollodon – junior synonym of Mantellisaurus
 "Domeykosaurus" – nomen nudum, Atacamatitan
 Dongbeititan
 Dongyangopelta
 Dongyangosaurus
 Doratodon –  a crocodilian
 Doryphorosaurus – junior synonym (unneeded replacement name) of Kentrosaurus
 Draconyx

 Dracopelta
 Dracoraptor
 Dracorex – possibly a juvenile Pachycephalosaurus
 Dracovenator
 Dravidosaurus – a plesiosaurian
 Dreadnoughtus
 Drinker
 Dromaeosauroides
 Dromaeosaurus
 Dromiceiomimus 
 Dromicosaurus – junior synonym of Massospondylus
 Drusilasaura
 Dryosaurus
 Dryptosauroides
 Dryptosaurus
 Dubreuillosaurus
 Duriatitan
 Duriavenator
 Dynamosaurus – junior synonym of Tyrannosaurus
 Dynamoterror
 Dyoplosaurus
 Dysalotosaurus
 Dysganus
 Dyslocosaurus
 Dystrophaeus
 Dystylosaurus – junior synonym of Supersaurus

E

 Echinodon
 Edmarka – junior synonym of Torvosaurus
 Edmontonia
 Edmontosaurus
 Efraasia
 Einiosaurus
 Ekrixinatosaurus
 Elachistosuchus – a rhynchocephalian
 Elaltitan
 Elaphrosaurus
 Elmisaurus
 Elopteryx
 Elosaurus – junior synonym of Brontosaurus
 Elrhazosaurus
 "Elvisaurus" – nomen nudum; Cryolophosaurus
 Emausaurus
 Embasaurus
 Enigmosaurus
 Eoabelisaurus
 Eobrontosaurus – junior synonym of Brontosaurus
 Eocarcharia
 Eoceratops – junior synonym of Chasmosaurus
 Eocursor
 Eodromaeus
 "Eohadrosaurus" – nomen nudum; Eolambia
 Eolambia
 Eomamenchisaurus
 Eoplophysis
 Eoraptor
 Eosinopteryx
 Eotrachodon
 Eotriceratops
 Eotyrannus
 Eousdryosaurus

 Epachthosaurus
 Epanterias – may be Allosaurus
 "Ephoenosaurus" – nomen nudum; Machimosaurus (a crocodilian)
 Epicampodon –  a proterosuchid archosauriform, Ankistrodon
 Epichirostenotes
 Epidendrosaurus – synonym of Scansoriopteryx
 Epidexipteryx
 Equijubus
 Erectopus
 Erketu
 Erliansaurus Erlikosaurus Eshanosaurus "Euacanthus" – nomen nudum; junior synonym of Polacanthus Eucamerotus Eucentrosaurus – junior synonym (unneeded replacement name) of Centrosaurus Eucercosaurus Eucnemesaurus Eucoelophysis –  a silesaurid
 "Eugongbusaurus" – nomen nudum Euhelopus Euoplocephalus Eupodosaurus – a nothosaur synonymous with Lariosaurus "Eureodon" – nomen nudum; Tenontosaurus Eurolimnornis –  a pterosaur
 Euronychodon Europasaurus Europatitan Europelta Euskelosaurus EustreptospondylusF

 Fabrosaurus – possibly Lesothosaurus Falcarius Fendusaurus - may be a nomen nudum "Fenestrosaurus" – nomen nudum; Oviraptor Ferganasaurus Ferganastegos Ferganocephale Foraminacephale Fosterovenator ‘’Fostoria’’
 Frenguellisaurus – junior synonym of Herrerasaurus Fruitadens Fukuiraptor Fukuisaurus Fukuititan Fukuivenator Fulengia Fulgurotherium "Fusinasus" – nomen nudum; Eotyrannus Fusuisaurus "Futabasaurus" – nomen nudum; not to be confused with the formally named plesiosaur Futabasaurus FutalognkosaurusG

 "Gadolosaurus" – nomen nudum Galeamopus Galesaurus –  a therapsid
 Galleonosaurus Gallimimus Galtonia –  a pseudosuchian; possibly a junior synonym of Revueltosaurus Galveosaurus – synonym of Galvesaurus Galvesaurus Gannansaurus "Gansutitan" - nomen nudum; Daxiatitan Ganzhousaurus Gargoyleosaurus Garudimimus Gasosaurus Gasparinisaura Gastonia "Gavinosaurus" – nomen nudum; Eotyrannus Geminiraptor Genusaurus Genyodectes Geranosaurus Gideonmantellia Giganotosaurus Gigantoraptor Gigantosaurus "Gigantosaurus" – preoccupied name, now known as Tornieria Gigantoscelus – junior synonym of Euskelosaurus Gigantspinosaurus Gilmoreosaurus "Ginnareemimus" – nomen nudum; Kinnareemimus Giraffatitan Glacialisaurus Glishades Glyptodontopelta Gobiceratops Gobihadros Gobiraptor Gobisaurus Gobititan Gobivenator "Godzillasaurus" – nomen nudum; Gojirasaurus Gojirasaurus Gondwanatitan Gongbusaurus Gongpoquansaurus Gongxianosaurus Gorgosaurus Goyocephale Graciliceratops Graciliraptor Gracilisuchus –  a non-dinosaurian archosaur
 Gravitholus Gresslyosaurus – junior synonym of Plateosaurus Griphornis – junior synonym of Archaeopteryx Griphosaurus – junior synonym of Archaeopteryx Gryphoceratops Gryponyx Gryposaurus Gspsaurus - nomen manuscriptum Guaibasaurus Gualicho Guanlong Gwyneddosaurus – a tanystrophid
 Gyposaurus – junior synonym of MassospondylusH

 "Hadrosauravus" – nomen nudum; junior synonym of Gryposaurus Hadrosaurus Haestasaurus Hagryphus Hallopus –  a crocodilian
 Halszkaraptor Halticosaurus Hanssuesia "Hanwulosaurus" – nomen nudum Haplocanthosaurus "Haplocanthus" – preoccupied name, now known as Haplocanthosaurus Haplocheirus Harpymimus Haya Hecatasaurus – junior synonym of Telmatosaurus "Heilongjiangosaurus" – nomen nudum Heishansaurus Helioceratops "Helopus" – preoccupied name, now known as Euhelopus Heptasteornis Herbstosaurus –  a pterosaur
 Herrerasaurus Hesperonychus ‘’Hesperornithoides’’
 Hesperosaurus Heterodontosaurus Heterosaurus - junior synonym of Mantellisaurus Hexing Hexinlusaurus Heyuannia[[File:Hypsilophodon foxii 1.jpg|thumb|Skeleton of Hypsilophodon.]]
 Hierosaurus
 Hikanodon - junior synonym of Iguanodon
 Hippodraco
 "Hironosaurus" – nomen nudum
 "Hisanohamasaurus" – nomen nudum
 Histriasaurus
 Homalocephale
 "Honghesaurus" – nomen nudum; Yandusaurus
 Hongshanosaurus – junior synonym of Psittacosaurus
 Hoplitosaurus
 Hoplosaurus – junior synonym of Struthiosaurus
 Horshamosaurus
 Hortalotarsus – junior synonym of Massospondylus
 Huabeisaurus
 Hualianceratops
 Huanansaurus
 Huanghetitan
 Huangshanlong
 Huaxiagnathus
 Huaxiaosaurus - junior synonym of Shantungosaurus
 "Huaxiasaurus" – nomen nudum; Huaxiagnathus
 Huayangosaurus
 Hudiesaurus
 Huehuecanauhtlus
 Hulsanpes 
 Hungarosaurus
 Huxleysaurus
 Hylaeosaurus
 Hylosaurus – junior synonym of Hylaeosaurus
 Hypacrosaurus
 Hypselorhachis –  a ctenosauriscid
 Hypselosaurus
 Hypselospinus
 Hypsibema
 Hypsilophodon
 Hypsirhophus

I

 "Ichabodcraniosaurus" – nomen nudum; probably Velociraptor
 Ichthyovenator
 Ignavusaurus
 Iguanacolossus
 Iguanodon
 "Iguanoides" – nomen nudum; Iguanodon

 "Iguanosaurus" – nomen nudum; Iguanodon
 Iliosuchus
 Ilokelesia
 Imperobator
 Incisivosaurus
 Indosaurus
 Indosuchus
 "Ingenia" – preoccupied name, now known as Heyuannia yanshini
 Ingentia
 Inosaurus
 Invictarx
 Irritator
 Isaberrysaura
 Isanosaurus
 Ischioceratops
 Ischisaurus – junior synonym of Herrerasaurus
 "Ischyrosaurus" – preoccupied name, has not yet been renamed
 Isisaurus
 "Issasaurus" – nomen nudum; Dicraeosaurus
 Itemirus
 Iuticosaurus

J

 Jainosaurus
 Jaklapallisaurus
 Janenschia
 Jaxartosaurus
 Jeholosaurus
 Jenghizkhan – junior synonym of Tarbosaurus
 "Jensenosaurus" – nomen nudum; Supersaurus
 Jeyawati
 Jianchangosaurus
 "Jiangjunmiaosaurus" – nomen nudum; Monolophosaurus
 Jiangjunosaurus
 Jiangshanosaurus

 Jiangxisaurus
 Jianianhualong 
 Jinfengopteryx
 Jingshanosaurus
 Jintasaurus
 Jinyunpelta
 Jinzhousaurus
 Jiutaisaurus
 Jobaria
 Jubbulpuria
 Judiceratops
 Jurapteryx – junior synonym of Archaeopteryx
 "Jurassosaurus" – nomen nudum; Tianchisaurus
 Juratyrant
 Juravenator

K

 Kaatedocus
 "Kagasaurus" – nomen nudum
 Kaijiangosaurus
 Kaijutitan
 Kakuru
 Kangnasaurus
 Karongasaurus
 Katepensaurus
 "Katsuyamasaurus" – nomen nudum; possible junior synonym of Fukuiraptor
Kayentavenator
 Kazaklambia
 Kelmayisaurus
 Kemkemia -  a crocodyliform
 Kentrosaurus
 Kentrurosaurus – junior synonym (unneeded replacement name) of Kentrosaurus
 Kerberosaurus

 Khaan
 Khetranisaurus
Kileskus
 Kinnareemimus
 "Kitadanisaurus" – nomen nudum; Fukuiraptor
 "Kittysaurus" – nomen nudum; Eotyrannus
 Klamelisaurus - possible junior synonym of Bellusaurus
 Kol
 Koparion
 Koreaceratops
 Koreanosaurus
 "Koreanosaurus" – nomen nudum; name later used formally for a genus of ornithopod
 Koshisaurus
 Kosmoceratops
 Kotasaurus
 Koutalisaurus - possible junior synonym of Pararhabdodon
 Kritosaurus
 Kryptops
 Krzyzanowskisaurus  – probably a pseudosuchian (Revueltosaurus?)
 Kukufeldia
 Kulceratops
 Kulindadromeus
 Kulindapteryx – synonym of Kulindadromeus
 Kunbarrasaurus
 Kundurosaurus
 "Kunmingosaurus" – nomen nudum
 Kuszholia – probably a bird

L

 Labocania
 Labrosaurus – junior synonym of Allosaurus
 "Laelaps" – preoccupied name, now known as Dryptosaurus
 Laevisuchus
 Lagerpeton –  a non-dinosaurian dinosauromorph
 Lagosuchus –  a non-dinosaurian dinosauromorph
 Laiyangosaurus
 Lamaceratops - possible junior synonym of Bagaceratops
 Lambeosaurus
 Lametasaurus
 Lamplughsaura
 Lanasaurus – junior synonym of Lycorhinus
 "Lancangosaurus" – variant spelling of "Lancanjiangosaurus"
 "Lancanjiangosaurus"  – nomen nudum
 Lanzhousaurus
 Laosaurus
 Lapampasaurus
 Laplatasaurus
 Lapparentosaurus
 Laquintasaura
 Latenivenatrix
 Latirhinus
 Lavocatisaurus
 Leaellynasaura
 Ledumahadi
 Leinkupal
 Leipsanosaurus – junior synonym of Struthiosaurus
 "Lengosaurus" – nomen nudum; Eotyrannus
 Leonerasaurus
 Lepidocheirosaurus — junior synonym of Kulindadromeus
 Lepidus
 Leptoceratops
 Leptorhynchos
 Leptospondylus – junior synonym of Massospondylus
 Leshansaurus
 Lesothosaurus

 Lessemsaurus
 Levnesovia
 Lewisuchus –  a non-dinosaurian dinosauromorph
 Lexovisaurus
 Leyesaurus
 Liaoceratops
 Liaoningosaurus
 Liaoningotitan 
 Liaoningvenator 
 Liassaurus - nomen nudum, possibly Sarcosaurus
 Libycosaurus –  an anthracothere mammal
 Ligabueino
 Ligabuesaurus
 "Ligomasaurus" – nomen nudum, probably Giraffatitan
 "Likhoelesaurus" – nomen nudum; possibly non-dinosaurian
 Liliensternus
 Limaysaurus
 "Limnornis" – preoccupied name, now known as Palaeocursornis ( a pterosaur)
 "Limnosaurus" – preoccupied name, now known as Telmatosaurus
 Limusaurus
 Lingwulong
 Lingyuanosaurus
 Linhenykus
 Linheraptor
 Linhevenator
 Lirainosaurus
 Lisboasaurus –  a crocodilian
 Liubangosaurus
 Lohuecotitan
 Loncosaurus
 Longisquama –  some sort of non-dinosaurian reptile
 Longosaurus – junior synonym of Coelophysis
 Lophorhothon
 Lophostropheus
 Loricatosaurus
 Loricosaurus
 Losillasaurus
 Lourinhanosaurus
 Lourinhasaurus
 Luanchuanraptor
 "Luanpingosaurus" – nomen nudum; Psittacosaurus
 Lucianosaurus –  a non-dinosaurian archosauriform
 Lucianovenator 
 Lufengosaurus
 Lukousaurus - possibly a crurotarsan
 Luoyanggia
 Lurdusaurus
 Lusitanosaurus
 Lusotitan
 Lycorhinus
 Lythronax

M

 Macelognathus –  a sphenosuchian crocodilian
 Machairasaurus
 Machairoceratops
 Macrocollum
 Macrodontophion -  a member of Lophotrochozoa
 Macrogryphosaurus
 Macrophalangia – junior synonym of Chirostenotes
 "Macroscelosaurus" – nomen nudum; probable junior synonym of Tanystropheus
 Macrurosaurus
 "Madsenius" – nomen nudum, Allosaurus
 Magnamanus
 Magnapaulia
 Magnirostris
 Magnosaurus
 "Magulodon" – nomen nudum
 Magyarosaurus
 Mahakala
 Mahuidacursor
 Maiasaura
 Majungasaurus
 Majungatholus – junior synonym of Majungasaurus
 Malarguesaurus
 Malawisaurus

 Maleevosaurus – junior synonym of Tarbosaurus
 Maleevus
 Mamenchisaurus
 Mandschurosaurus
 Manidens
 Manospondylus – synonym of Tyrannosaurus
 Mansourasaurus
 Mantellisaurus
 Mantellodon - possible junior synonym of Mantellisaurus
 Mapusaurus
 Maraapunisaurus
 Marasuchus –  a non-dinosaurian dinosauromorph
 Marisaurus
 Marmarospondylus
 Marshosaurus
 Martharaptor
 Masiakasaurus
 Massospondylus
 Matheronodon
 Maxakalisaurus
 Medusaceratops
 "Megacervixosaurus" – nomen nudum
 "Megadactylus" – preoccupied name, now known as Anchisaurus
 "Megadontosaurus" – nomen nudum; Microvenator
 Megalosaurus
 Megapnosaurus – junior synonym of Coelophysis
 Megaraptor
 Mei
 Melanorosaurus
 Mendozasaurus
 Mercuriceratops
 Meroktenos
 Metriacanthosaurus
 "Microcephale" – nomen nudum
 "Microceratops" – preoccupied name, now known as Microceratus
 Microceratus
 Microcoelus
 "Microdontosaurus" – nomen nudum
 Microhadrosaurus
 Micropachycephalosaurus
 Microraptor
 Microvenator
 Mierasaurus
 "Mifunesaurus" – nomen nudum
 Minmi
 Minotaurasaurus 
 Miragaia
 Mirischia
 Mnyamawamtuka
 Moabosaurus
 Mochlodon
 "Mohammadisaurus" – nomen nudum; Tornieria

 Mojoceratops – probable junior synonym of Chasmosaurus
 Mongolosaurus
 Mongolostegus
 Monkonosaurus
 Monoclonius
 Monolophosaurus
 "Mononychus" – preoccupied name, now known as Mononykus
 Mononykus
 Montanoceratops
 Morelladon
 Morinosaurus
 Moros
 Morosaurus – junior synonym of Camarasaurus
 Morrosaurus
 Mosaiceratops
 "Moshisaurus" – nomen nudum; possibly Mamenchisaurus
 "Mtapaiasaurus" – nomen nudum, probably Giraffatitan
 "Mtotosaurus" – nomen nudum; Dicraeosaurus
 Murusraptor
 Mussaurus
 Muttaburrasaurus
 Muyelensaurus
 Mymoorapelta

N

 Naashoibitosaurus
 Nambalia
 Nankangia
 Nanningosaurus
 Nanosaurus
 Nanotyrannus - possible junior synonym of Tyrannosaurus
 Nanshiungosaurus
 Nanuqsaurus
 Nanyangosaurus
 Narambuenatitan
 Nasutoceratops
 Natronasaurus - self-published name, now known as Alcovasaurus
 Nebulasaurus
 "Nectosaurus" – preoccupied name, now known as Kritosaurus
 Nedcolbertia
 Nedoceratops - possible junior synonym of Triceratops
 Neimongosaurus
 "Nemegtia" – preoccupied name, now known as Nemegtomaia
 Nemegtomaia
 Nemegtosaurus
 "Neosaurus" – preoccupied name; renamed Parrosaurus, which is now Hypsibema
 Neosodon
 Neovenator
 Neuquenraptor
 Neuquensaurus
 "Newtonsaurus" – nomen nudum, Zanclodon
 "Ngexisaurus" – nomen nudum
 Nhandumirim
 Nicksaurus - nomen manuscriptum
 Nigersaurus
 Ningyuansaurus
 Niobrarasaurus
 Nipponosaurus
 Noasaurus
 Nodocephalosaurus
 Nodosaurus
 Nomingia

 Nopcsaspondylus
 Normanniasaurus
 ‘’Notatesseraeraptor’’
 Nothronychus
 Notoceratops
 Notocolossus
 Notohypsilophodon
 Nqwebasaurus
 "Nteregosaurus" – nomen nudum; Janenschia
 "Nurosaurus" – nomen nudum
 Nuthetes
 Nyasasaurus – possibly a non-dinosaurian dinosauriform
 "Nyororosaurus" – nomen nudum; Dicraeosaurus

O

 ‘’Oceanotitan’’
 Ohmdenosaurus
 Ojoceratops 
 Ojoraptorsaurus
 Oligosaurus 
 Olorotitan
 Omeisaurus
 "Omosaurus" – preoccupied name, now known as Dacentrurus
 Onychosaurus – possible synonym of Rhabdodon, or a dubious ankylosaurian
 Oohkotokia 
 Opisthocoelicaudia – possible junior synonym of Nemegtosaurus
 Oplosaurus
 "Orcomimus" – nomen nudum
 Orinosaurus – junior synonym (unneeded replacement name) of Orosaurus
 Orkoraptor
 Ornatotholus – junior synonym of Stegoceras
 Ornithodesmus
 "Ornithoides" – nomen nudum; Saurornithoides
 Ornitholestes

 Ornithomerus 
 Ornithomimoides
 Ornithomimus
 Ornithopsis
 Ornithosuchus –  a non-dinosaurian archosaur
 Ornithotarsus – junior synonym of Hadrosaurus
 Orodromeus
 Orosaurus 
 Orthogoniosaurus
 Orthomerus
 Oryctodromeus
 "Oshanosaurus" – nomen nudum
 Osmakasaurus
 Ostafrikasaurus
 Ostromia
 Othnielia
 Othnielosaurus
 Otogosaurus
 Ouranosaurus
 Overosaurus
 Oviraptor
 "Ovoraptor" – nomen nudum; Velociraptor
 Owenodon
 Oxalaia
 Ozraptor

P

 Pachycephalosaurus
 Pachyrhinosaurus
 Pachysauriscus – junior synonym of Plateosaurus
 Pachysaurops – junior synonym of Plateosaurus
 "Pachysaurus" – preoccupied name, now known as Pachysauriscus; junior synonym of Plateosaurus
 Pachyspondylus – probable junior synonym of Massospondylus
 Pachysuchus
 Padillasaurus
 Pakisaurus
 Palaeoctonus –  a phytosaur
 Palaeocursornis –  an azhdarchoid pterosaur
 "Palaeolimnornis" – nomen nudum; Palaeocursornis, pterodactyloid pterosaur belonging to Azhdarchoidea
 Palaeopteryx – possibly a bird
 Palaeosauriscus – junior synonym of Paleosaurus
 "Palaeosaurus" – preoccupied name, now known as Paleosaurus
 "Palaeosaurus" – preoccupied name, now known as Sphenosaurus, a non-dinosaurian procolophonid
 Palaeoscincus
 Paleosaurus –  a non-dinosaurian archosaur
 Paludititan
 Paluxysaurus – junior synonym of Sauroposeidon
 Pampadromaeus
 Pamparaptor
 Panamericansaurus
 Pandoravenator
 Panguraptor
 Panoplosaurus
 Panphagia
 Pantydraco

 "Paraiguanodon" – nomen nudum; Bactrosaurus
 Paralititan
 Paranthodon
 Pararhabdodon
 Parasaurolophus
 Pareiasaurus –  a pareiasaur
 Pareisactus
 Parksosaurus
 Paronychodon
 Parrosaurus - now known as Hypsibema missouriensis
 Parvicursor
 Patagonykus
 Patagosaurus
 Patagotitan
 Pawpawsaurus
 Pectinodon
 Pedopenna
 Pegomastax
 Peishansaurus
 Pekinosaurus –  a pseudosuchian; possibly a junior synonym of Revueltosaurus
 Pelecanimimus
 Pellegrinisaurus
 Peloroplites
 Pelorosaurus
 "Peltosaurus" – preoccupied name, now known as Sauropelta
 Penelopognathus
 Pentaceratops
 Petrobrasaurus
 Phaedrolosaurus
 Philovenator
 Phuwiangosaurus
 Phyllodon
 Piatnitzkysaurus
 Picrodon - non-dinosaurian archosaur, now known as Avalonianus
 Pilmatueia
 Pinacosaurus
 Pisanosaurus - possibly a silesaurid
 Pitekunsaurus
 Piveteausaurus
 Planicoxa
 Plateosauravus 
 Plateosaurus
 Platyceratops
 Platypelta
 Plesiohadros
 Pleurocoelus – possible junior synonym of Astrodon
 Pleuropeltus – junior synonym of Struthiosaurus
 Pneumatoarthrus –  a turtle
 Pneumatoraptor
 Podokesaurus
 Poekilopleuron
 Polacanthoides – junior synonym of Hylaeosaurus
 Polacanthus
 Polyodontosaurus
 Polyonax
 Ponerosteus - a non-dinosaurian archosaur
 Poposaurus –  a non-dinosaurian archosaur

 Postosuchus –  a rauisuchian
 Powellvenator
 Pradhania
 Prenocephale
 Prenoceratops
 Priconodon
 Priodontognathus
 Proa
 Probactrosaurus
 Probrachylophosaurus
 Proceratops – junior synonym (unneeded replacement name) of Ceratops
 Proceratosaurus
 Procerosaurus –  a tanystropheid protorosaur, Tanystropheus
 "Procerosaurus" – preoccupied name, now known as Ponerosteus
 Procheneosaurus – junior synonym of Lambeosaurus
 Procompsognathus
 Prodeinodon
 "Proiguanodon" – nomen nudum; Iguanodon
 Propanoplosaurus
 Proplanicoxa – probable junior synonym of Mantellisaurus
 Prosaurolophus
 Protarchaeopteryx
 Protecovasaurus –  a non-dinosaurian archosauriform
 Protiguanodon – junior synonym of Psittacosaurus
 Protoavis – described as a bird, probably a chimera including theropod dinosaur bones
 Protoceratops
 Protognathosaurus
 "Protognathus" – preoccupied name, now known as Protognathosaurus
 Protohadros
 Protorosaurus –  a non-dinosaurian reptile
 "Protorosaurus" – preoccupied name, now known as Chasmosaurus
 "Protrachodon" – nomen nudum; Orthomerus
 "Proyandusaurus" – nomen nudum; Hexinlusaurus.
 Pseudolagosuchus –  a non-dinosaurian dinosauromorph
 Psittacosaurus
 Pteropelyx
 Pterospondylus
 Puertasaurus
 Pukyongosaurus
 Pulanesaura
 Pycnonemosaurus
 Pyroraptor

Q

 Qantassaurus

 Qianzhousaurus
 Qiaowanlong
 Qijianglong
 Qingxiusaurus
 Qinlingosaurus
 Qiupalong
 Qiupanykus
 Quaesitosaurus
 Quetecsaurus
 Quilmesaurus

R

 Rachitrema – a chimera primarily based on ichthyosaur fossils
 Rahiolisaurus
 "Rahona" – preoccupied name, now known as Rahonavis
 Rahonavis – possibly a bird
 Rajasaurus
 Rapator
 Rapetosaurus
 Raptorex - possible junior synonym of Tarbosaurus
 Ratchasimasaurus
 Rativates
 Rayososaurus
 Razanandrongobe – a crocodylomorph
 Rebbachisaurus
 Regaliceratops
 Regnosaurus
 Revueltosaurus –  a pseudosuchian
 Rhabdodon
 Rhadinosaurus – may be non-dinosaurian, possibly crocodilian
 Rhinorex – probable junior synonym of Gryposaurus
 Rhodanosaurus – junior synonym of Struthiosaurus
 Rhoetosaurus
 Rhopalodon –  a synapsid
 Riabininohadros
 Richardoestesia

 "Rileya" – preoccupied name, now known as Rileyasuchus
 Rileyasuchus –  a phytosaur
 Rinchenia
 Rinconsaurus
 Rioarribasaurus – junior synonym of Coelophysis
 "Riodevasaurus" - nomen nudum; Turiasaurus
 Riojasaurus
 Riojasuchus –  a non-dinosaurian archosaur
 Rocasaurus
 "Roccosaurus" – nomen nudum; Melanorosaurus
 "Ronaldoraptor" - nomen nudum
Rubeosaurus
 Ruehleia
 Rugocaudia
 Rugops
 Rukwatitan
 Ruyangosaurus

S

 Sacisaurus –  a silesaurid
 Sahaliyania
 Saichania
 Saldamosaurus - nomen nudum
 "Salimosaurus" – nomen nudum, probably Giraffatitan
 Saltasaurus
 Saltopus –  probably a non-dinosaurian dinosauromorph
 "Saltriosaurus" – nomen nudum
 Saltriovenator
 "Sanchusaurus" – nomen nudum, Gallimimus
 "Sangonghesaurus" – nomen nudum, Tianchisaurus
 Sanjuansaurus
 Sanpasaurus
 Santanaraptor
 Sarahsaurus
 Saraikimasoom - nomen manuscriptum
 Sarcolestes
 Sarcosaurus
 Sarmientosaurus
 Saturnalia
 "Sauraechinodon" – nomen nudum; Echinodon
 "Sauraechmodon" - nomen nudum; Echinodon
 "Saurechinodon" - nomen nudum; Echinodon
 Saurolophus
 Sauroniops
 Sauropelta
 Saurophaganax – possible junior synonym of Allosaurus
 "Saurophagus" – preoccupied name, now known as Saurophaganax
 Sauroplites
 Sauroposeidon
 Saurornithoides
 Saurornitholestes
 Savannasaurus
 Scansoriopteryx
 Scaphonyx –  a rhynchosaur, Hyperodapedon
 Scelidosaurus
 Scipionyx
 Sciurumimus
 Scleromochlus –  a non-dinosaurian avemetatarsalian

 Scolosaurus
 Scutellosaurus
 Secernosaurus
 Sefapanosaurus
 Segisaurus
 Segnosaurus
 Seismosaurus – junior synonym of Diplodocus
 Seitaad
 Sektensaurus
 "Selimanosaurus" – nomen nudum; Dicraeosaurus
 Sellacoxa
 Sellosaurus – junior synonym of Plateosaurus
 Serendipaceratops
 Serikornis
 Shamosaurus
 Shanag
 Shanshanosaurus – junior synonym of Tarbosaurus
 Shantungosaurus
 Shanxia – probable junior synonym of Saichania
 Shanyangosaurus
 Shaochilong
 Shenzhousaurus
 Shidaisaurus
 Shingopana
 Shixinggia
 Shuangbaisaurus
 Shuangmiaosaurus
 Shunosaurus
 Shuvosaurus –  a rauisuchian
 Shuvuuia
 Siamodon
 "Siamodracon" - nomen nudum
 Siamosaurus
 Siamotyrannus
 Siats
 "Sibirosaurus" - nomen nudum, now known as Sibirotitan
 Sibirotitan
 "Sidormimus" - nomen nudum
 Sigilmassasaurus
 Silesaurus –  a silesaurid
 Siluosaurus
 Silvisaurus
 Similicaudipteryx
 Sinocalliopteryx
 Sinoceratops
 Sinocoelurus
 Sinopelta - synonym of Sinopeltosaurus
 Sinopeltosaurus
 Sinopliosaurus - a pliosaur; one species "S." fusuiensis, is actually a spinosaurid theropod
 Sinornithoides
 Sinornithomimus
 Sinornithosaurus
 Sinosauropteryx
 Sinosaurus
 Sinotyrannus
 Sinovenator
 Sinraptor

 Sinusonasus
 Sirindhorna
 Skorpiovenator
 "Smilodon" – preoccupied name, now known as Zanclodon
 Sonidosaurus
 Sonorasaurus
 Soriatitan
 Soumyasaurus - a silesaurid
 Sphaerotholus
 Sphenosaurus –  a non-dinosaurian reptile
 Sphenospondylus - junior synonym of Mantellisaurus
 Spiclypeus
 Spinophorosaurus
 Spinops
 Spinosaurus
 Spinostropheus
 Spinosuchus –  a non-dinosaurian reptile
 Spondylosoma – an aphanosaur
 Squalodon –  a cetacean
 Staurikosaurus
 Stegoceras
 Stegopelta
 Stegosaurides
 Stegosaurus
 Stenonychosaurus
 Stenopelix
 Stenotholus – junior synonym of Stygimoloch
 Stephanosaurus
 "Stereocephalus" – preoccupied name, now known as Euoplocephalus
 Sterrholophus – junior synonym of Triceratops
 Stokesosaurus
 Stormbergia - junior synonym of Lesothosaurus
 Strenusaurus – junior synonym of Riojasaurus
 Streptospondylus
 Struthiomimus
 Struthiosaurus
 Stygimoloch – possibly a sub-adult Pachycephalosaurus
 Stygivenator – junior synonym of Tyrannosaurus
 Styracosaurus
 Succinodon – fossilized mollusc borings
 Suchomimus
 Suchoprion –  a phytosaur
 Suchosaurus
 "Sugiyamasaurus" – nomen nudum

 Sulaimanisaurus
 Supersaurus
 Suuwassea
 Suzhousaurus
 Symphyrophus – junior synonym of Camptosaurus
 Syngonosaurus - junior synonym of Acanthopholis
 "Syntarsus" – preoccupied name, renamed Megapnosaurus which is now a junior synonym of Coelophysis
 Syrmosaurus – junior synonym of Pinacosaurus
 Szechuanosaurus

T

 Tachiraptor
 Talarurus
 Talenkauen
 Talos
 Tambatitanis
 Tangvayosaurus
 Tanius
 Tanycolagreus
 Tanystropheus –  a protorosaur
 Tanystrosuchus
 Taohelong
 Tapinocephalus –  a therapsid
 Tapuiasaurus
 Tarascosaurus
 Tarbosaurus
 Tarchia
 Tastavinsaurus
 Tatankacephalus
 Tatankaceratops - probable junior synonym of Triceratops
 Tataouinea
 Tatisaurus
 Taurovenator
 Taveirosaurus
 Tawa
 Tawasaurus - junior synonym of Lufengosaurus
 Tazoudasaurus
 Technosaurus - possibly non-dinosaurian
 Tecovasaurus –  a non-dinosaurian archosauriform
 Tehuelchesaurus
 Teihivenator
 Teinurosaurus
 Teleocrater – a basal avemetatarsalian
 Telmatosaurus
 "Tenantosaurus" – nomen nudum; Tenontosaurus
 "Tenchisaurus" - nomen nudum;  an unpublished museum name for Tianchisaurus
 Tendaguria
 Tengrisaurus
 Tenontosaurus
 Teratophoneus
 Teratosaurus –  a non-dinosaurian archosaur
 Termatosaurus –  a phytosaur

 Tethyshadros
 Tetragonosaurus – junior synonym of Lambeosaurus
 Texacephale
 Texasetes
 Teyuwasu
 Thanos
 Thecocoelurus
 Thecodontosaurus
 Thecospondylus
 Theiophytalia
 Therizinosaurus
 Therosaurus - a synonym of Iguanodon
 Thescelosaurus
 Thespesius
 "Thotobolosaurus" – nomen nudum
 Tianchisaurus
 "Tianchungosaurus" – nomen nudum; Dianchungosaurus (crocodilian)
 Tianyulong
 Tianyuraptor
 Tianzhenosaurus – probable junior synonym of Saichania
 Tichosteus
 Tienshanosaurus
 Timimus
 Timurlengia
 Titanoceratops
 Titanosaurus
 "Titanosaurus" – preoccupied name, now known as Atlantosaurus
 Tochisaurus
 "Tomodon" – preoccupied name, now known as Diplotomodon
Tonganosaurus
 Tongtianlong
 "Tonouchisaurus" – nomen nudum
 Torilion – junior synonym of Barilium
 Tornieria
 Torosaurus
 Torvosaurus
 Tototlmimus
 Trachodon
 Tratayenia
 Traukutitan
 Trialestes –  a basal crocodylomorph
 "Triassolestes" – preoccupied name, now known as Trialestes
 Tribelesodon –  junior synonym of Tanystropheus, a protorosaur
 Triceratops
 Trigonosaurus
 Trimucrodon
 Trinisaura
 Triunfosaurus
 Troodon
 Tsaagan
 Tsagantegia
 Tsintaosaurus
 Tugulusaurus
 Tuojiangosaurus
 Turanoceratops
 Turiasaurus
 Tylocephale
 Tylosteus – synonym of Pachycephalosaurus
 Tyrannosaurus
 Tyrannotitan

U

 Uberabatitan
 Udanoceratops
 Ugrosaurus – junior synonym of Triceratops
 Ugrunaaluk – possible junior synonym of Edmontosaurus
 Uintasaurus – junior synonym of Camarasaurus
 Ultrasauros – junior synonym of Supersaurus
 Ultrasaurus
 "Ultrasaurus" – preoccupied name, renamed Ultrasauros which is now a junior synonym of Supersaurus
 Umarsaurus – nomen nudum; Barsboldia
 Unaysaurus
 Unenlagia
 Unescoceratops
 "Unicerosaurus" – nomen nudum,  a fish
 Unquillosaurus
 Urbacodon
 Utahceratops
 Utahraptor
 Uteodon

V

 Vagaceratops
 Vahiny
 Valdoraptor
 Valdosaurus
 Variraptor

 Vectensia – junior synonym of Polacanthus
 Vectisaurus - junior synonym of Mantellisaurus
 Velafrons
 Velocipes
 Velociraptor
 Velocisaurus
 Venaticosuchus –  a non-dinosaurian archosaur
 Venenosaurus
 Veterupristisaurus
 Viavenator
 Vitakridrinda
 Vitakrisaurus
 Volgatitan
 Volkheimeria
 Vouivria
 Vulcanodon

W

 Wadhurstia – junior synonym of Hypselospinus
 Wakinosaurus
 Walgettosuchus
 "Walkeria" – preoccupied name, now known as Alwalkeria
 "Walkersaurus" – nomen nudum; Duriavenator
 Wamweracaudia

 "Wangonisaurus" – nomen nudum, probably Giraffatitan
 Wannanosaurus
 Weewarrasaurus
 Wellnhoferia –  a bird, possible junior synonym of Archaeopteryx
 Wendiceratops
 Wiehenvenator
 Willinakaqe
Wintonotitan
 Wuerhosaurus
 Wulagasaurus
 Wulatelong
 Wyleyia – probably a bird
 "Wyomingraptor" – nomen nudum, probably Allosaurus

X

 Xenoceratops
 Xenoposeidon
 Xenotarsosaurus
 Xianshanosaurus
 Xiaosaurus

 Xiaotingia
 Xingxiulong
 Xinjiangovenator
 Xinjiangtitan
 Xiongguanlong
 Xixianykus
 Xixiasaurus
 Xixiposaurus
 Xiyunykus
 Xuanhanosaurus
 Xuanhuaceratops
 "Xuanhuasaurus" – nomen nudum; Xuanhuaceratops
 Xuwulong

Y

 Yaleosaurus – junior synonym of Anchisaurus
 Yamaceratops
 Yandusaurus
 Yangchuanosaurus

 Yaverlandia
 Yehuecauhceratops
 "Yezosaurus" – nomen nudum;  a mosasaur
 Yi
 "Yibinosaurus" – nomen nudum
 Yimenosaurus
 Yingshanosaurus
 Yinlong
 Yixianosaurus
 Yizhousaurus 
 Yongjinglong
 "Yuanmouraptor" – nomen nudum
 Yuanmousaurus
 Yueosaurus
 Yulong
 Yunganglong
 Yunmenglong
 Yunnanosaurus
 "Yunxianosaurus" – nomen nudum
 Yurgovuchia
 Yutyrannus

Z

 Zalmoxes
 Zanabazar
 Zanclodon – non-dinosaurian
 Zapalasaurus
 Zapsalis
 Zaraapelta
 Zatomus –  a non-dinosaurian archosaur
 Zby
 Zephyrosaurus

 Zhanghenglong
 Zhejiangosaurus
 Zhenyuanlong
 Zhongornis - possibly a bird
 Zhongjianosaurus
 Zhongyuansaurus – probable junior synonym of Gobisaurus
 Zhuchengceratops
 Zhuchengosaurus - junior synonym of Shantungosaurus
 Zhuchengtitan
 Zhuchengtyrannus
 Ziapelta
 Zigongosaurus 
 Zizhongosaurus
 Zuniceratops
 Zuolong
 Zuoyunlong
 Zupaysaurus
 Zuul

Related pages

 Dinosaur classification
 List of birds
 List of bird genera
 List of dinosaur ichnogenera
 List of unavailable dinosaur genera
 List of ichthyosaurs
 List of mosasaurs
 List of pelycosaurs
 List of plesiosaurs
 List of pterosaurs
 List of therapsids
 List of South American dinosaurs
 List of North American dinosaurs
 List of African dinosaurs
 List of Asian dinosaurs
 List of European dinosaurs
 List of Indian and Madagascan dinosaurs
 List of Australian and Antarctic dinosaurs
 List of commonly used taxonomic affixes

Notes 
 Uncited genera names can be attributed to Olshevsky's "Dinosaur Genera List". Dalianraptor is listed by Olshevsky, but omitted from this list, since it has not been described as a non-avian dinosaur in a published source.

References 
 Lambert, D. (1993). "A to Z of Dinosaurs" In: The Ultimate Dinosaur Book. Dorling Kindersley, 192 pp. 
 Olshevsky, G. (1995 onwards). Dinosaur Genera List. Retrieved July 30, 2013.
 Walters, M. & J. Paker (1995). Dictionary of Prehistoric Life. Claremont Books. .
 Weishampel, D.B., P. Dodson & H. Osmólska (eds.) (2004). The Dinosauria, Second Edition. University of California Press, 861 pp. .

 
Lists of Dinosaurs