Opinions from R. Lydekker 1888
- 'Acanthopholis belongs to Scelidosauridae'
- 'Acanthopholis horridus belongs to Acanthopholis'
- 'Altispinax dunkeri is recombined as Megalosaurus dunkeri'
- 'Anchisauridae belongs to Theropoda'
- 'Anchisaurus belongs to Anchisauridae'
- 'Archosauria belongs to Reptilia'
- 'Aristosuchus belongs to Megalosauridae'
- 'Atlantosauridae belongs to Sauropoda'
- 'Atlantosaurus belongs to Atlantosauridae'
- 'Atlantosaurus immanis belongs to Atlantosaurus'
- 'Bothriospondylus belongs to Megalosaurinidae'
- 'Bothriospondylus magnus is a subjective synonym of Ornithopsis hulkei'
- 'Bothriospondylus robustus belongs to Bothriospondylus'
- 'Bothriospondylus suffossus belongs to Bothriospondylus'
- 'Ceratosauridae is a subjective synonym of Megalosauridae'
- 'Cetiosauridae belongs to Sauropoda'
- 'Cetiosaurus belongs to Cetiosauridae'
- 'Cetiosaurus brevis belongs to Cetiosaurus'
- 'Cetiosaurus conybeari is recombined as Pelorosaurus conybeari'
- 'Cetiosaurus glymptonensis belongs to Cetiosaurus'
- 'Cetiosaurus humerocristatus belongs to Cetiosaurus' according to J. W. Hulke 1874
- 'Cetiosaurus humerocristatus is recombined as Ornithopsis humerocristatus'
- 'Cetiosaurus longus is a subjective synonym of Cetiosaurus oxoniensis'
- 'Cetiosaurus medius is a subjective synonym of Cetiosaurus oxoniensis'
- 'Cetiosaurus oxoniensis belongs to Cetiosaurus'
- 'Chondrosteosaurus is a subjective synonym of Ornithopsis'
- 'Chondrosteosaurus gigas is a subjective synonym of Ornithopsis hulkei'
- 'Cimoliornis diomedeus is recombined as Ornithochirus diomedeus'
- 'Coeluridae belongs to Theropoda'
- 'Coelurus belongs to Coeluridae'
- 'Coluber kargii [misspelled as Coluber kargi] belongs to Coluber'
- 'Coluber owenii is recombined as Elaphis oweni'
- 'Compsognathidae belongs to Theropoda'
- 'Compsognathus belongs to Compsognathidae'
- 'Compsognathus longipes belongs to Compsognathus'
- 'Crocodilus cultridens is recombined as Suchosaurus cultridens'
- 'Crocodilus plenidens is recombined as Diplocynodon plenidens'
- 'Crocodilus priscus is recombined as Aeolodon priscus' according to von Meyer 1830
- 'Crocodilus priscus is recombined as Aeolodon priscus'
- 'Crocodylus (Leptorhynchus) crassidens is recombined as Leptorhynchus crassidens' according to Falconer and Cautley 1840
- 'Crocodylus (Leptorhynchus) crassidens is recombined as Rhamphosuchus crassidens' according to Lydekker 1886
- 'Cumnoria is a subjective synonym of Iguanodon'
- 'Diclonius belongs to Trachodontidae'
- 'Dinodocus mackesoni belongs to Dinodocus'
- 'Dinosauria belongs to Archosauria'
- 'Dinosaurus is a subjective synonym of Zanclodon'
- 'Dryptosaurus belongs to Megalosauridae'
- 'Echinodon belongs to Dinosauria'
- 'Echinodon becklesii belongs to Echinodon'
- 'Elaphe [misspelled as Elaphis] belongs to Colubridae'
- 'Eucamerotus is a subjective synonym of Ornithopsis'
- 'Gigantosaurus is a subjective synonym of Ornithopsis'
- 'Gigantosaurus megalonyx is a subjective synonym of Ornithopsis humerocristatus'
- 'Gresslyosaurus is a subjective synonym of Zanclodon'
- 'Dinosaurus gresslyi is a subjective synonym of Zanclodon suevicus'
- 'Hadrosauridae is a subjective synonym of Trachodontidae'
- 'Hadrosaurus is a subjective synonym of Trachodon'
- 'Hadrosaurus foulkii is recombined as Trachodon foulkii'
- 'Hallopus belongs to Compsognathidae'
- 'Hylaeosaurus belongs to Scelidosauridae'
- 'Hylaeosaurus oweni belongs to Hylaeosaurus' according to G. A. Mantell 1844
- 'Hylaeosaurus oweni belongs to Hylaeosaurus'
- 'Hypsilophodon belongs to Iguanodontidae'
- 'Hypsilophodon foxii belongs to Hypsilophodon'
- 'Iguanodon belongs to Iguanodontidae'
- 'Iguanodon bernissartensis belongs to Iguanodon'
- 'Iguanodon dawsoni belongs to Iguanodon'
- 'Iguanodon mantelli belongs to Iguanodon'
- 'Iguanodon prestwichii belongs to Iguanodon'
- 'Iguanodon seelyi is a subjective synonym of Iguanodon bernissartensis'
- 'Iguanodontidae belongs to Ornithopoda'
- 'Ischyrosaurus is a subjective synonym of Ornithopsis'
- 'Ischyrosaurus manseli belongs to Ischyrosaurus' according to J. W. Hulke 1888
- 'Ischyrosaurus manseli is recombined as Ornithopsis manseli'
- 'Labrosauridae is a subjective synonym of Megalosaurinidae'
- 'Laelaps is a subjective synonym of Dryptosaurus'
- 'Laelaps aquilunguis is recombined as Dryptosaurus aquilunguis'
- 'Macrurosaurus belongs to Sauropoda'
- 'Macrurosaurus semnus belongs to Macrurosaurus'
- 'Megalania prisca [misspelled as Varanus priscus] belongs to Varanus'
- 'Megalosauri is corrected as Megalosauridae and belongs to Theropoda'
- 'Megalosaurus belongs to Megalosaurinidae'
- 'Megalosaurus bredai belongs to Megalosaurus'
- 'Megalosaurus bucklandii belongs to Megalosaurus'
- 'Megalosaurus insignis belongs to Megalosaurus'
- 'Morosauridae belongs to Sauropoda'
- 'Nuthetes belongs to Dinosauria'
- 'Nuthetes destructor belongs to Nuthetes'
- 'Omosauridae belongs to Ornithopoda'
- 'Omosaurus belongs to Omosauridae'
- 'Omosaurus armatus belongs to Omosaurus'
- 'Omosaurus hastiger belongs to Omosaurus'
- 'Ornithocephalus banthensis is recombined as Dorygnathus banthensis' according to Wagner 1861
- 'Ornithochirus belongs to Pterosauria'
- 'Ornithopoda belongs to Dinosauria'
- 'Ornithopsis belongs to Atlantosauridae'
- 'Ornithopsis eucamerotus belongs to Ornithopsis' according to J. W. Hulke 1882
- 'Ornithopsis eucamerotus is a subjective synonym of Ornithopsis hulkei'
- 'Ornithopsis hulkei belongs to Ornithopsis'
- 'Ornithopsis leedsi belongs to Ornithopsis' according to J. W. Hulke 1887
- 'Ornithopsis leedsi is a subjective synonym of Ornithopsis humerocristatus'
- 'Orthomerus belongs to Trachodontidae'
- 'Orthomerus dolloi belongs to Orthomerus'
- 'Palaeornis cliftii is recombined as Ornithocheirus cliftii'
- 'Pelorosaurus belongs to Atlantosauridae'
- 'Plerodon crocodiloides is a subjective synonym of Diplocynodon plenidens'
- 'Poekilopleuron is a subjective synonym of Megalosaurus'
- 'Poekilopleuron bucklandii is a subjective synonym of Megalosaurus bucklandii'
- 'Poikilopleuron pusillus is recombined as Aristosuchus pusillus'
- 'Polacanthus belongs to Scelidosauridae'
- 'Polacanthus foxii belongs to Polacanthus'
- 'Pterodactylus compressirostris is recombined as Ornithochirus compressirostris'
- 'Pterodactylus curtus is recombined as Ornithocheirus curtus'
- 'Pterodactylus daviesii is recombined as Ornithocheirus daviesii'
- 'Pterodactylus longirostris is a subjective synonym of Pterodactylus antiquus'
- 'Pterodactylus nobilis is recombined as Ornithocheirus nobilis'
- 'Pterodactylus scolopaciceps is a subjective synonym of Pterodactylus kochi'
- 'Regnosaurus belongs to Scelidosauridae'
- 'Regnosaurus northamptoni belongs to Regnosaurus'
- 'Rhamphorhynchus longimanus is a subjective synonym of Rhamphorhynchus gemmingi'
- 'Rhamphorhynchus phyllurus is a subjective synonym of Rhamphorhynchus muensteri'
- 'Sauropoda belongs to Dinosauria'
- 'Scelidosauridae belongs to Ornithopoda'
- 'Scelidosaurus belongs to Scelidosauridae'
- 'Scelidosaurus harrisonii belongs to Scelidosaurus'
- 'Sphenospondylus belongs to Iguanodontidae'
- 'Sphenospondylus gracilis belongs to Sphenospondylus'
- 'Stegosauria is a subjective synonym of Ornithopoda'
- 'Streptospondylus major is a subjective synonym of Iguanodon bernissartensis'
- 'Teratosaurus is a subjective synonym of Zanclodon'
- 'Teratosaurus suevicus is recombined as Zanclodon suevicus'
- 'Thecodontosaurus belongs to Anchisauridae'
- 'Thecodontosaurus antiquus belongs to Thecodontosaurus'
- 'Thecospondylus belongs to Sauropoda'
- 'Thecospondylus daviesi is recombined as Coelurus daviesi'
- 'Thecospondylus horneri belongs to Thecospondylus'
- 'Theropoda belongs to Dinosauria'
- 'Titanosaurus belongs to Cetiosauridae'
- 'Titanosaurus indicus belongs to Titanosaurus'
- 'Trachodon belongs to Trachodontidae'
- 'Trachodon cantabrigiensis belongs to Trachodon'
- 'Trachodontidae belongs to Ornithopoda'
- 'Tropidonotus atavus is recombined as Elaphis atavus'
- 'Zanclodon belongs to Megalosaurinidae'
- 'Zanclodontidae is a subjective synonym of Megalosaurinidae'