This phylogeny is the author's opinion based on his interpretation of the literature. It is however, broadly congruent with recent works (e.g. Wilson, 2002; Upchurch et al., 2004; Upchurch et al., 2007; Yates, 2007; Carbillado et al., 2011; Whitlock, 2011; Mannion et al., 2013; Tschopp et al., 2015).


Format

Alpha
|--Beta
`--Gamma
   |--Delta
   |*-Epsilon
   `--Zeta
      |?-Eta
      `--Theta 

Based roughly on Mike Keesey's old Dinosauricon site. Beta and Gamma are sister taxa within the clade Alpha Delta is within Gamma, but not a member of Zeta. Epsilon, however, is Gamma incertae sedis. Eta is only tentatively placed within Zeta. Nomina nuda are non-italicized and placed in quotation marks, while unpublished taxa (as recognized by the ICZN) are designated the same way, but followed by an asterisk. Nomina dubia are not distinguished from valid taxa, as which taxa are indeterminate is a subjective question. Taxa in parentheses are technically valid according to the ICZN but not used by most theropod workers.


Cladogram


Sauropodomorpha
|*-Aetonyx palustris
|*-Agrosaurus macgillivrayi
|*-Aristosaurus erectus |*-Asylosaurus yalensis
|*-Dimodosaurus poligniensis
|*-Dromicosaurus gracilis |*-Euskelosaurus? africanus |*-Fulengia youngi
|*-Gigantoscelis molengraaffi
|*-Gresslyosaurus? plieningeri
|*-Gresslyosaurus? robustus
|*-Gryponyx? taylori
|*-Gryponyx? transvaalensis
|*-Gyposaurus capensis
|*-Hortalotarsus skirtopodus |*-"Kholumolumosaurus ellenbergerorum"
|*-Leptospondylus capensis |*-Massospondylus? browni |*-Massospondylus? harriesi |*-Massospondylus? schwarzi
|*-Orosaurus capensis
|*-Pachysauriscus ajax
|*-Pachysauriscus? giganteus
|*-Pachysauriscus? magnus
|*-Pachysauriscus? wetzelianus
|*-Pachyspondylus orpenii
|*-Plateosaurus? erlenbergiensis
|*-Plateosaurus? reiningeri
|*-Plateosaurus? quenstedti
|*-"Teratosaurus" trossingensis |*-Thecodontosaurus? dubius
|*-Thecodontosaurus? hermannianus |*-Thecodontosaurus? minor |*-"Thotobolosaurus mabeatae" |?-Guaibasauridae | `--Guaibasaurus candelariensis |--Pampadromaeus barberenai
|--Panphagia protos
|--Saturnaliinae
| |--Chromogisaurus novasi
| `--Saturnalia tupiniquim
`--+--Thecodontosauridae
| |--Thecodontosaurus antiquus
| `?-Pantydraco caducus
`--+--Arcusaurus pereirabdalorum |--Nambalia roychowdhurii |?-Lamplughsaura dharmaramensis
`--+--Efraasia minor `--+?-Ignavusaurus rachelis `--+*-Xixiposaurus suni
`--Plateosauria
|*-Euskelosaurus browni
|--Prosauropoda
| Plateosauridae | |--Plateosauravus cullingworthi | |--Ruehleia bedheimensis | `--+*-Jaklapallisaurus asymmetrica | |--Unaysaurus tolentinoi
| `--+--Sellosaurus gracilis
| `--+--Gresslyosaurus ingens
| `--Plateosaurus engelhardti `--Massopoda |--Riojasauridae
| |--Riojasaurus incertus
| `--+--Eucnemesaurus entaxonis | `--Eucnemesaurus fortis `--+?-Sarahsaurus aurifontanalis
`--+--Gryponyx africanus |*-"Gyposaurus" sinensis
|--Massospondylidae | |*-Pradhania gracilis
| |--+--+--Massospondylus carinatus
| | | `--Massospondylus kaalae
| | `--+--Adeopapposaurus mognai | | |--Leyesaurus marayensis
| | `?-Seitaad ruessi
| `?-+--Coloradisaurus brevis
| `--+--Lufengosaurus huenei | |?-Lufengosaurus? "changduensis" | |?-Lufengosaurus? magnus
| `--Glacialisaurus hammeri
`-----+--Chuxiongosaurus lufengensis |--Jingshanosaurus xinwaensis
|--+--Yunnanosaurus huangi | |--Yunnanosaurus? robustus | `--Yunnanosaurus? youngi
`--Anchisauria
|?-Anchisauridae
| `--Anchisaurus polyzelus `--Sauropodiformes |--Mussaurus patagonicus
`--+--Aardonyx celestae
|--Blikanasaurus cromptoni
|--Camelotia borealis |--Sefapanosaurus zastronensis |--Melanorosauridae
| `--Melanorosaurus readi |--Meroktenos thabanensis
`--Sauropoda
|--+--Antetonitrus ingenipes
| `--Lessemsaurus sauropoides `--+--Leonerasaurus taquetrensis `--+*-"Damalosaurus laticostalis" |*-Ohmdenosaurus liasicus |*?Sanpasaurus yaoi |*-Shunosaurus? "ziliujingensis" |*-"Yibinosaurus zhoui" |*-Zizhongosaurus? "huangshibanensis" |--Chinshakiangosaurus chunghoensis
`--+*-Amygdalodon patagonicus |*-Archaeodontosaurus descouensi |*?Eshanosaurus deguchiianus |*-Isanosaurus attavipachi |*-"Rutellum impicatum" |--Gongxianosaurus shibeiensis |?-Kunmingosaurus wudingensis `--+--Pulanesaura eocollum
`--Gravisauria |*-Zizhongosaurus chuanchengensis |--Kotasaurus yamanpalliensis |--+--Nebulasaurus taito | `--Spinophorosaurus nigerensis |--Tazoudasaurus naimi
|--Vulcanodontidae | `--Vulcanodon karibaensis
`--Eusauropoda |*-Abrosaurus dongpoensis |*-"Bashunosaurus kaijangensis" |*-Cardiodon rugulosus |*-Cetiosaurus? "epioolithicus" |*-Cetiosaurus? medius |*-Datousaurus bashanensis |*-"Ornithopsis" leedsi |*-Protognathosaurus oxyodon |*-Rhoetosaurus brownei
|--Shunosaurus lii `--+*-Barosaurus? affinis |*-Cetiosaurus? longus |*-Chiayusaurus lacustris |*?Dashanpusaurus dongi |*-Ferganasaurus verzilini |*-Gigantosaurus megalonyx |*-Klamelisaurus gobiensis |*?"Lancangosaurus cachuensis" |*-Morinosaurus typus |*-Neosodon praecursor |--Atlasaurus imelakei |--Barapasaurus tagorei |--"Cetiosauriscus" greppini |--Cetiosauriscus stewarti |--Cetiosauridae | `--Cetiosaurus oxoniensis |--Cetiosaurus? mogrebiensis |--Chebsaurus algeriensis |--Daanosaurus zhangi |--Lapparentosaurus madagascariensis |--Patagosaurus fariasi |--Tendaguria tanzaniensis |--Volkheimeria chubutensis |--Mamenchisauridae | |--+--Omeisaurus? changshouensis | | |--Omeisaurus fuxiensis | | |--Omeisaurus "gongjianensis" | | |--Omeisaurus jiaoi | | |--Omeisaurus junghsiensis | | |--Omeisaurus luoquanensis | | |?-Omeisaurus? maoianus | | |--Omeisaurus "sinensis" | | |--Omeisaurus tianfuensis | | `--Omeisaurus "zigongensis" | |*-Eomamenchisaurus yuanmouensis | |*?Huangshanlong anhuiensis | |*?Hudiesaurus sinojapanorum | |*?"Moshisaurus" | |*?Tonganosaurus hei | `--+--Chuanjiesaurus anaensis | |--Qijianglong guokr | |*-Xinjiangtitan shanshanesis | `--+--Mamenchisaurus anyuensis | |--Mamenchisaurus constructus | |--Mamenchisaurus fuxiensis | |--Mamenchisaurus "guangyuanensis" | |--Mamenchisaurus hochuanensis | |--Mamenchisaurus jingyanensis | |--Mamenchisaurus sinocanadorum | |--Mamenchisaurus yaochinensis | |--Mamenchisaurus youngi | |--Mamenchisaurus yunnanensis | |*?Tienshanosaurus chitaiensis | `--Yuanmousaurus jiangyiensis `--+*-Bothriospondylus? elongatus |?-"Bothriospondylus" madagascariensis |--Losillasaurus giganteus |--Turiasauria | |--Turiasaurus riodevensis | `--Zby atlanticus
`--Neosauropoda |*-Aepisaurus elephantinus |*?Atlantosaurus montanus |*-Bothriospondylus suffossus |*?Brachyrophus altarkansanus |*-Chondrosteosaurus? magnus |*-Dystrophaeus viaemalae |*-"Hisanohamasaurus" |*-"Ischyrosaurus" manseli |*-"Nurosaurus qaganensis" |*-Oplosaurus armatus |*-Rebbachisaurus? tamesnensis |*-Ultrasaurus tabriensis |--+--Haplocanthosaurus delfsi | `--Haplocanthosaurus priscus |--Jobaria tiguidensis
|--Diplodocoidea | |*?"Cetiosaurus" glymptonensis | |--Amazonsaurus maranhensis | `--Diplodocimorpha | |--Rebbachisauridae | | |*?Algoasaurus bauri
| | |*?Xenoposeidon proneneukos | | |--Histriasaurus boscarollii | | |--Zapalasaurus bonapartei | | `--+*-Nopcsaspondylus alarconensis | | |--Comahuesaurus windhauseni | | `--Khebbashia | | |*-Katepensaurus goicoecheai | | |--Limaysaurinae | | | |--Limaysaurus tessonei | | | `--+--Cathartesaura anaerobica | | | `--Rayososaurus agrioensis | | `--Rebbachisaurinae | | |--Nigersaurus taqueti | | `--+--Demandasaurus darwini | | `--+--Rebbachisaurus garasbae | | `--Tataouinea hannibalis | `--Flagellicaudata | |--Dicraeosauridae | | |--Dyslocosaurus polyonychius | | `--+--Suuwassea emilieae | | `--+--Amargasaurus cazaui | | `--+--Brachytrachelopan mesai | | `--+--Dicraeosaurus hansemanni | | `--Dicraeosaurus sattleri | `--Diplodocidae | |--Amphicoelias altus
| |*-Amphicoelias? fragillimus | |*-Diplodocus? lacustris | |?*"Megapleurocoelus menduckii"* | |*-"Morosaurus" agilis | `--+--Apatosaurinae | | |--Atlantosaurus? immanis | | `--+--+--Apatosaurus laticollis | | | `--Apatosaurus ajax | | `--+--Brontosaurus excelsus | | `--+--Brontosaurus parvus | | `--Brontosaurus yahnahpin | `--Diplodocinae | |--Tornieria africana | `--+--+--Supersaurus vivianae | | `--Dinhierosaurus lourinhanensis | `--+--Leinkupal laticauda | `--+--Galeamopus hayi | `--+--+--Kaatedocus siberi | | `--Barosaurus lentus | `--+--Diplodocus carnegii | |--Diplodocus hallorum | `--Diplodocus longus
`--Macronaria |*-"Apatosaurus" minimus |*?Bellusaurus sui |*-Marmarospondylus robustus |*-Dinodocus mackesoni |*-Haestasaurus becklesii |*-Xenoposeidon proneneukos Camarasauromorpha |--Camarasauridae | |--+--Cathetosaurus lewisi | | `--+--Camarasaurus grandis | | |--Camarasaurus lentus | | `--Camarasaurus supremus | `?-Lourinhasaurus alenquerensis `--+--Janenschia robusta `--+--Tehuelchesaurus benitezii `--+--Aragosaurus ischiaticus `--+--Galveosaurus herreroi `--+--Dongbeititan dongi |--Lusotitan atalaiensis `--Titanosauriformes |*-Acanthopholis platypus (in part) |*-Asiatosaurus? kwangshiensis |*-Asiatosaurus mongoliensis |*-Astrodon johnstoni |*-Austrosaurus mckillopi |*-Brachiosaurus? nougaredi |*-Brohisaurus kirthari |*-"Chiayusaurus" asianensis |*-Chondrosteosaurus gigas |*-Duriatitan humerocristatus |*-Eucamerotus foxi |*-Jiutaisaurus xidiensis |*-Macrurosaurus semnus |*?"Microdontosaurus dayensis" |*-Ornithopsis hulkei |*-Ornithopsis? eucamerotus |*-Pleurocoelus altus |*-Pleurocoelus? nanus |*-"Pleurocoelus" valdensis |*?"Poekilopleuron" schmidti |*-Pukyongosaurus millenniumi |*?"Xinghesaurus" |--Brachiosauridae | |*-Padillasaurus leivaensis |*-Rugocaudia cooneyi | |--Venenosaurus dicrocei | `--+--Europasaurus holgeri | `--+--Brachiosaurus altithorax | `--+--Sonorasaurus thompsoni | `--+--Abydosaurus mcintoshi | `--+--Giraffatitan brancai | `--Cedarosaurus weiskopfae `--Somphospondyli Titanosauria |*-Adamantisaurus mezzalirai |*-Agustinia ligabuei |*-Amargatitanis macni |*-Antarctosaurus? brasiliensis |*-Antarctosaurus? giganteus |*-Antarctosaurus? jaxarticus |*?Arkharavia heterocoelica |*-Barrosasaurus casamiquelai |*-Baurutitan britoi |*?Bruhathkayosaurus matleyi |*-Campylodoniscus ameghinoi |*-Clasmodosaurus spatula |*-Hypselosaurus priscus |*-Jainosaurus septentrionalis |*-Karongasaurus gittelmani |*-"Magyarosaurus" hungaricus |*-Magyarosaurus? transsylvanicus |*?"Megacervixosaurus tibetensis" |*-Microcoelus patagonicus |*-Nemegtosaurus? pachi |*-Pelorosaurus brevis |*-Pitekunsaurus macayai |*-Titanosaurus? blanfordi |*-Titanosaurus? lydekkeri |*-Titanosaurus? nanus |*-Titanosaurus? rahioliensis |*-Vahiny depereti |*?"Yunxianosaurus hubeinensis" |--Andesauroidea | |--Chubutisauridae | | |--Angolatitan adamastor | | `--+--Chubutisaurus insignis | | `--+--Baotianmansaurus henanensis | | |--Huanghetitan liujiaxiaensis | | `--Wintontitan wattsi | `--Andesauridae | |--Sauroposeidon proteles | `--+--Ruyangosaurus giganteus | `--+--Tastavinsaurus sanzi | `--+--Andesaurus delgadoi | `--Ligabuesaurus leanzai `--Titanosauroidea |*-Tambatitanis amicitiae |--+--Astrophocaudia slaughteri | `--Brontomerus mcintoshi `--+?-Australodocus bohetii `--+--Euhelopodidae | |--Daxiatitan binglingi | |--Euhelopus zdanskyi | |?-Gannansaurus sinensis | `?-Huabeisaurus allocotus `--+--Fukuititan nipponensis `--+--+--Phuwiangosaurus sirindhornae | `--+--Qiaowanlong kangxii | `--Yunmenglong ruyangensis `--+*-Paludititan nalatzensis |--Malarguesaurus florenciae `--+--+--+--Fusuisaurus zhaoi | | `--+--Tangvayosaurus hoffeti | | `--Tangvayosaurus? falloti | `--+--Gobititan shenzhouensis | `--"Huanghetitan" ruyangensis `--+*-Antarctosaurus wichmannianus |*-Argentinosaurus huinculensis |*-Brasilotitan nemophagus |--Rukwatitan bisepultus |--Sonidosaurus saihangaobiensis |*-+--+--Laplatasaurus araukanicus | | `--Uberabatitan ribeiroi | `--+--Bonitasaura salgadoi | `--Lognkosauria | |--Drusilasaura deseadensis | |--Futalognkosaurus dukei | |--Mendozasaurus neguyelap | |--Puertasaurus reuili | |--Quetecsaurus rusconii | `?-Traukutitan eocaudata `--Lithostrotia |*-Dreadnoughtus schrani |*-Loricosaurus scutatus |*-Notocolossus gonzalezparejasi |*?"Sauropodus" |*?Qinlingosaurus luonanensis |--+--Malawisaurus dixeyi | `?-Atsinganosaurus velauciensis `--+*-Aegyptosaurus baharijensis |*-Ampelosauirus atacis |*-Atacamatitan chilensis |*-Isisaurus colberti |*-Khetranisaurus barkhani |*-Lirainosaurus astibiae |*-Magyarosaurus dacus |*-Pakisaurus balochistani |*-Paralititan stromeri |*-Petrobrasaurus puestohernandezi |*-Sulaimanisaurus gingerichi |*-Titanosaurus indicus |*-Titanosaurus? madagascariensis |*-Trigonosaurus pricei |--Epachthosaurinae | `--Epachthosaurus sciuttoi |--Narambuenatitan palomoi |--Nemegtosauridae | |*-Argyrosaurus superbus | |*-Erketu ellisoni | |*?Mongolosaurus haplodon | |*-Quaesitosaurus orientalis | |--Nemegtosaurus mongoliensis | `--+--Rapetosaurus krausei | `--Tapuiasaurus macedoi `--Eutitanosauria |*-Alamosaurus sanjuanensis |*-Balochisaurus malkani |*-Diamantinasaurus matildae |*-Elaltitan lilloi |*-Jiangshanosaurus lixianensis |*-Marisaurus jeffi |*?Maxakalisaurus topai |*-Pellegrinisaurus powelli |*?Xianshanosaurus shijiagouensis |*-Yongjinglong datangi |--Aeolosaurini | |*?Iuticosaurus valdensis | |--+--Overosaurus paradasorum | | `--+--+--Aeolosaurus colhuehuapensis | | | `--Aeolosaurus rionegrinus | | |--Gondwanatitan faustoi | | `--Panamericansaurus schroederi | `--Rinconsauria | |--Muyelensaurus pecheni | `--Rinconsaurus caudamirus `--Saltasauridae |--Opisthocoelicaudiinae | |?-Borealosaurus wimani | |?-Dongyangosaurus sinensis | |?-Liubangosaurus hei | `--Opisthocoelicaudia skarzynskii `--Saltasaurinae |*-Bonatitan reigi |*?Normanniasaurus genceyi |--Neuquensaurus australus `--+--Rocasaurus muniozi `--Saltasaurus loricatus