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Dinosauria The MRCA of Saurischia and Ornithischia, and its descendants
*** Eoraptor The most basal known dinosaur
Saurischia Everything closer to Megalosaurus than to Iguanodon
Sauropodomorpha Sauropods and their ancestors and close relatives
Brontosauria
Plateosauria
Massospondylidae
Yunnanosaurinae
*** Yunnanosaurus
Sauropoda Huge, long-necked herbivores
Eusauropoda
*** Jobaria A surprisingly primitive Early Cretaceous form
Neosauropoda
Diplodocimorpha Diplodocus, Apatosaurus, Seismosaurus and kin
Rebbachisauridae
Rebbachisaurinae
*** Rebbachisaurus Had a sail on its back
Macronaria
Camarasauromorpha
Titanosauriformes
Brachiosauridae
*** Sauroposeidon The tallest known dinosaur (18m)
Titanosauria
Eutitanosauria
*** Argentinosaurus The heaviest known dinosaur (100 tonnes)
Theropoda Bipedal carnivores
Neotheropoda
Ceratosauria May be polyphyletic if neoceratosaurs are tenanuran
Coelophysoidea
Coelophysidae
Coelophysinae
*** Dilophosaurus Had a pair of long crests on its nose
Neoceratosauria
*** Xenotarsosaurus
Tetanurae
Spinosauria Large carnivores with sails on their backs
Spinosauridae
Spinosaurinae
Irritatorini
*** Irritator
Avetheropoda aka. Neotetanurae
Carnosauria Previously used just to mean "large theropods"
*** Fukuiraptor
Allosauroidea
Allosauridae
Carcharodontosaurinae Some consider these animals derived abelisaurs
*** Giganotosaurus Probably the heaviest known theropod
Coelurosauria Previously used just to mean "small theropods"
Maniraptoriformes
[unnamed] Unnamed clade {Ornithomimosauria+Tyrannosauria}
Arctometatarsalia
Ornithomimosauria
*** Harpymimus
Tyrannosauroidea Includes early form Eotyrannus
Tyrannosauridae
Tyrannosaurinae
Tyrannosaurini Could be defined as {Tyrannosaurs+Tarbosaurus}
*** Tyrannosaurus
Maniraptora
Oviraptorosauria Includes Caenagnathidae
Oviraptoridae
*** Oviraptor Some specimens found brooding their nests
Therizinosauria Truly freaky long-necked, huge-clawed fatsos
Therizinosauroidea
Therizinosauridae
*** Nanshiungosaurus
Paraves
Eumaniraptora
Deinonychosauria
Troodontidae Highest encephalisation quotient on known dinos
*** Byronosaurus
Dromaeosauridae
Velociraptorinae
*** Velociraptor Much smaller in real life than in Jurassic Park
Avialae
Aves Birds, including modern birds
Metornithes
Alvarezsauria Short, stong args; long, gracile legs. Weird
Alvarezsauridae
Mononykinae Hands had only a single, spike-like finger
*** Parvicursor
Ornithischia Everything closer to Iguanodon than to Megalosaurus
Genasauria
Thyreophora The armoured dinosaurs, ankylosaurs and stegosaurs
Thyreophoroidea
Eurypoda
Stegosauria Single or double row of plates down the back
Stegosauridae
*** Kentrosaurus Had spikes on its back instead of plates
Ankylosauria Heavily armoured, above and below
*** Minmi
Cerapoda Defined as {Triceratops+Iguanodon}
Marginocephalia Defined as {Triceratops+Pachycephalosaurus}
Ceratopsia
Neoceratopsia Everything closer to Triceratops than to Psittacosaurus
*** Udanoceratops
Coronosauria
Ceratopsoidea
Ceratopsomorpha
Ceratopsidae {Chasmosaurinae+Centrosaurinae}
*** Zuniceratops
Pachycephalosauria Thick-headed, wide-bodied herbivorous bipeds
*** Wannanosaurus
Ornithopoda The least interesting of all the dinosaur groups
*** Qantassaurus A profoundly dull basal ornithopod
Euornithopoda
Iguanodontia
Euiguanodontia
Dryomorpha
Ankylopollexia
Styracosterna
*** Lurdosaurus Looks a lot like a fat Iguanodon
Iguanodontoidea
Hadrosauroidea
Hadrosauridae
Euhadrosauria Lambeosaurs (crested) + Hadrosaurs (not)
Lambeosaurinae The least dull of all the ornithopods
Lambeosaurini
*** Corythosaurus
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