Opinions from R. S. Lull 1917
- 'Aetosauria belongs to Parasuchia'
- 'Aetosauridae belongs to Aetosauria'
- 'Amblonyx giganteus is recombined as Eubrontes platypus'
- 'Amblypus belongs to Reptilia'
- 'Amblypus dextratus belongs to Amblypus'
- 'Ammopus belongs to Reptilia'
- 'Ammopus marshi belongs to Ammopus'
- 'Ammosaurus belongs to Anchisauridae'
- 'Anchisauridae belongs to Megalosauria'
- 'Anchisauripus belongs to Theropoda'
- 'Anchisauripus hitchcocki belongs to Anchisauripus'
- 'Anchisaurus belongs to Anchisauridae'
- 'Anchisaurus colurus belongs to Anchisaurus'
- 'Anchisaurus major is recombined as Ammosaurus major'
- 'Anchisaurus solus belongs to Anchisaurus'
- 'Ancyropus belongs to Reptilia'
- 'Anisopus gracilior is recombined as Batrachopus gracilior'
- 'Anomoepus belongs to Orthopoda'
- 'Anomoepus cuneatus belongs to Anomoepus'
- 'Anomoepus intermedius belongs to Anomoepus'
- 'Anomoepus isodactylus belongs to Anomoepus'
- 'Anomoepus major is a subjective synonym of Sauropus barrattii'
- 'Anomoepus minimus belongs to Anomoepus'
- 'Anomoepus scambus belongs to Anomoepus'
- 'Antipus belongs to Reptilia'
- 'Antipus flexiloquus belongs to Antipus'
- 'Apatichnus belongs to Theropoda'
- 'Apatichnus bellus is recombined as Batrachopus bellus'
- 'Apatichnus circumagens belongs to Apatichnus'
- 'Apatichnus crassus is recombined as Anomoepus crassus'
- 'Apatichnus curvatus is recombined as Anomoepus curvatus'
- 'Arachichnus belongs to Reptilia'
- 'Arachichnus dehiscens belongs to Arachichnus'
- 'Argoides belongs to Reptilia'
- 'Batrachopus belongs to Aetosauria'
- 'Batrachopus dispar belongs to Batrachopus'
- 'Batrachopus gracilis belongs to Batrachopus'
- 'Belodon validus is recombined as Rutiodon validus'
- 'Brontozoum approximatum is recombined as Eubrontes approximatus'
- 'Brontozoum divaricatum is recombined as Eubrontes divaricatus'
- 'Brontozoum exsertum is recombined as Anchisauripus exsertus'
- 'Brontozoum tuberatum is recombined as Eubrontes tuberatus'
- 'Cheirotheroides belongs to Aetosauria'
- 'Cheirotheroides pilulatus belongs to Cheirotheroides'
- 'Chelonoides belongs to Reptilia'
- 'Chelonoides incedens belongs to Chelonoides'
- 'Compsognatha was reranked as a superfamily and belongs to Theropoda'
- 'Comptichnus belongs to Reptilia'
- 'Comptichnus obesus belongs to Comptichnus'
- 'Corvipes belongs to Reptilia'
- 'Corvipes lacertoideus belongs to Corvipes'
- 'Dinosauria belongs to Reptilia'
- 'Eubrontes belongs to Theropoda'
- 'Eupalamopus belongs to Reptilia'
- 'Exocampe belongs to Reptilia'
- 'Exocampe arcta belongs to Exocampe'
- 'Exocampe minimus is corrected as Exocampe minima and belongs to Exocampe'
- 'Exocampe ornata belongs to Exocampe'
- 'Gigadipus is corrected as Gigandipus and belongs to Theropoda'
- 'Gigadipus caudatus is recombined as Gigandipus caudatus'
- 'Gigantitherium minus is recombined as Apatichnus minor'
- 'Grallator belongs to Theropoda'
- 'Grallator cuneatus belongs to Grallator'
- 'Grallator cursorius belongs to Grallator'
- 'Grallator formosus belongs to Grallator'
- 'Grallator tenuis belongs to Grallator'
- 'Harpedactylus belongs to Reptilia'
- 'Harpedactylus concameratus is recombined as Platypterna concamerata'
- 'Harpedactylus crassus belongs to Harpedactylus'
- 'Harpedactylus gracilior belongs to Harpedactylus'
- 'Harpedactylus rectus is recombined as Platypterna recta'
- 'Helcura belongs to Reptilia'
- 'Helcura anguinea belongs to Helcura'
- 'Helcura littoralis belongs to Helcura'
- 'Helcura surgens belongs to Helcura'
- 'Hyphepus belongs to Theropoda'
- 'Hyphepus fieldi belongs to Hyphepus'
- 'Isocampe belongs to Reptilia'
- 'Isocampe strata belongs to Isocampe'
- 'Lagunculapes belongs to Reptilia'
- 'Lagunculapes latus belongs to Lagunculapes'
- 'Leptonyx lateralis is recombined as Stenonyx lateralis'
- 'Macropterna gracilipes is recombined as Palamopus gracilipes'
- 'Megadactylus polyzelus is recombined as Anchisaurus polyzelus'
- 'Megalosauria was reranked as a superfamily and belongs to Theropoda'
- 'Ornithichnites deanii is recombined as Platypterna deanii'
- 'Ornithichnites divaricatus is recombined as Steropoides divaricatus'
- 'Ornithichnites diversus is recombined as Steropoides diversus'
- 'Ornithichnites giganteus is recombined as Eubrontes giganteus'
- 'Ornithichnites gracilis is recombined as Grallator gracilis'
- 'Ornithichnites ingens is recombined as Steropoides ingens'
- 'Ornithichnites minimus is recombined as Argoides minimus'
- 'Ornithichnites minusculus is recombined as Anchisauripus minusculus'
- 'Ornithichnites parallelus is recombined as Anchisauripus parallelus'
- 'Ornithichnites tetradactylus is recombined as Sillimanius tetradactylus'
- 'Ornithichnites tuberosus is recombined as Anchisauripus tuberosus'
- 'Ornithoidichnites gracilior is recombined as Sillimanius gracilior'
- 'Ornithoidichnites gracillimus is recombined as Anomoepus gracillimus'
- 'Ornithoidichnites macrodactylus is recombined as Argoides macrodactylus'
- 'Ornithoidichnites redfieldii is recombined as Argoides redfieldii'
- 'Ornithoidichnites rogersi is recombined as Palamopus rogersi'
- 'Ornithoidichnites sillimani is recombined as Anchisauripus sillimani'
- 'Ornithoidichnites tenuis is recombined as Platypterna tenuis'
- 'Orthodactylus belongs to Reptilia'
- 'Orthodactylus floriferus belongs to Orthodactylus'
- 'Orthodactylus introvergens belongs to Orthodactylus'
- 'Orthodactylus linearis belongs to Orthodactylus'
- 'Orthopoda belongs to Dinosauria'
- 'Otouphepus belongs to Theropoda'
- 'Otouphepus magnificus belongs to Otouphepus'
- 'Otouphepus minor belongs to Otouphepus'
- 'Otozoum belongs to Orthopoda'
- 'Otozoum minus belongs to Otozoum'
- 'Otozoum moodii belongs to Otozoum'
- 'Otozoum parvum is recombined as Chirotherium parvum'
- 'Palamopus belongs to Reptilia'
- 'Palamopus dananus is recombined as Eupalamopus dananus'
- 'Palamopus palmatus belongs to Palamopus' according to E. Hitchcock 1841
- 'Palamopus palmatus belongs to Palamopus'
- 'Parasuchia was reranked as a order and belongs to Reptilia'
- 'Phytosauria belongs to Parasuchia'
- 'Phytosauridae belongs to Phytosauria'
- 'Platypterna belongs to Reptilia'
- 'Platypterna digitigrada belongs to Platypterna'
- 'Plectropterna belongs to Reptilia'
- 'Plectropterna angusta belongs to Plectropterna'
- 'Plectropterna elegans belongs to Plectropterna'
- 'Plectropterna lineans belongs to Plectropterna'
- 'Plesiornis belongs to Reptilia'
- 'Plesiornis pilulatus belongs to Plesiornis'
- 'Podokesauridae belongs to Compsognatha'
- 'Podokesaurus belongs to Podokesauridae'
- 'Podokesaurus holyokensis belongs to Podokesaurus'
- 'Polemarchus belongs to Reptilia'
- 'Polemarchus gigas belongs to Polemarchus'
- 'Rutiodon belongs to Phytosauridae'
- 'Sauroidichnites baileyi is recombined as Triaenopus baileyi'
- 'Sauroidichnites barrattii is recombined as Sauropus barrattii'
- 'Sauroidichnites deweyi is recombined as Batrachopus deweyi'
- 'Sauroidichnites heteroclitus is recombined as Ancyropus heteroclitus'
- 'Sauroidichnites minitans is recombined as Plectropterna minitans'
- 'Sauroidichnites tenuissimus is recombined as Harpedactylus tenuissimus'
- 'Sauropus belongs to Orthopoda'
- 'Selenichnus belongs to Theropoda'
- 'Selenichnus breviusculus belongs to Selenichnus'
- 'Selenichnus falcatus belongs to Selenichnus'
- 'Shepardia belongs to Reptilia'
- 'Shepardia palmipes belongs to Shepardia'
- 'Sillimanius belongs to Reptilia'
- 'Stegomus belongs to Aetosauridae'
- 'Stegomus arcuatus belongs to Stegomus'
- 'Stegomus arcuatus belongs to Stegomus' according to Marsh 1896
- 'Stegomus longipes belongs to Stegomus' according to Emerson and Loomis 1904
- 'Stegomus longipes belongs to Stegomus'
- 'Stenodactylus curvatus is recombined as Sustenodactylus curvatus'
- 'Stenonyx belongs to Theropoda'
- 'Steropoides belongs to Reptilia'
- 'Steropoides infelix belongs to Steropoides'
- 'Sustenodactylus belongs to Reptilia'
- 'Tarsodactylus belongs to Reptilia'
- 'Tarsodactylus caudatus belongs to Tarsodactylus'
- 'Tarsodactylus expansus belongs to Tarsodactylus'
- 'Theropoda was reranked as a suborder and belongs to Dinosauria'
- 'Toxichnus belongs to Reptilia'
- 'Toxichnus inaequalis belongs to Toxichnus'
- 'Triaenopus belongs to Reptilia'
- 'Tridentipes uncus is recombined as Steropoides uncus'
- 'Xiphopeza belongs to Reptilia'
- 'Xiphopeza triplex belongs to Xiphopeza'