Opinions from R. S. Lull 1915
- 'Acanthichnus belongs to Insecta'
- 'Aethyopus is a subjective synonym of Sauropus'
- 'Aetosauria belongs to Parasuchia'
- 'Aetosauridae belongs to Aetosauria'
- 'Amblonyx is a subjective synonym of Sauropus'
- 'Amblonyx giganteus is recombined as Eubrontes platypus'
- 'Ammopus belongs to Vertebrata'
- 'Ammopus marshi belongs to Ammopus'
- 'Ammosaurus belongs to Anchisauridae'
- 'Amphisaurus is replaced by Anchisaurus'
- 'Anchisauridae belongs to Megalosauria'
- 'Anchisauripodidae belongs to Theropoda'
- 'Anchisauripus belongs to Anchisauripodidae'
- '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'
- 'Anisichnus is a subjective synonym of Batrachopus'
- 'Anisopus is a subjective synonym of Batrachopus'
- 'Anisopus gracilior is recombined as Batrachopus gracilior'
- 'Anomoepodidae belongs to Orthopoda'
- 'Anomoepus belongs to Anomoepodidae'
- 'Anomoepus cuneatus belongs to Anomoepus'
- 'Anomoepus intermedius belongs to Anomoepus'
- 'Anomoepus isodactylus belongs to Anomoepus'
- 'Anomoepus minor is a subjective synonym of Anomoepus scambus'
- 'Anomoepus scambus belongs to Anomoepus'
- 'Apatichnus belongs to Anomoepodidae'
- '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'
- 'Apatichnus holyokensis is a subjective synonym of Anomoepus intermedius'
- 'Apatichnus holyokensis belongs to Apatichnus' according to C. H. Hitchcock 1889
- 'Bathygnathus belongs to Pelycosauria'
- 'Batrachopodidae belongs to Aetosauria'
- 'Batrachopus belongs to Batrachopodidae'
- 'Batrachopus dispar belongs to Batrachopus'
- 'Batrachopus gracilis belongs to Batrachopus'
- 'Belodon validus belongs to Belodon'
- 'Bifurculipes belongs to Ichnofossils'
- 'Bisulcus belongs to Mollusca'
- 'Brontozoum is a subjective synonym of Eubrontes'
- 'Brontozoum approximatum is recombined as Eubrontes approximatus'
- 'Brontozoum divaricatum is recombined as Eubrontes divaricatus'
- 'Brontozoum exsertum is recombined as Anchisauripus exsertus'
- 'Brontozoum loxonyx is a subjective synonym of Anchisauripus tuberosus'
- 'Brontozoum tuberatum is recombined as Eubrontes tuberatus'
- 'Brontozoum validum is a subjective synonym of Anchisauripus tuberosus'
- 'Ceratopsia belongs to Ornithischia'
- 'Cheirotheroides belongs to Aetosauria'
- 'Cheirotheroides pilulatus belongs to Cheirotheroides'
- 'Chimaera is a subjective synonym of Sauropus'
- 'Chimaerichnus is a subjective synonym of Sauropus'
- 'Clepsysaurus belongs to Phytosauria'
- 'Cochlichnus belongs to Vermes'
- 'Compsognatha was reranked as a superfamily and belongs to Theropoda'
- 'Compsognathus belongs to Podokesauridae'
- 'Compsognathus longipes belongs to Compsognathus'
- 'Cunicularius [misspelled as Cunicularis] belongs to Vermes'
- 'Dinosauria belongs to Reptilia'
- 'Eubrontes belongs to Eubrontidae'
- 'Anchisauripus dananus is a subjective synonym of Anchisauripus sillimani'
- 'Eubrontidae belongs to Theropoda'
- 'Fulicopus is a subjective synonym of Sauropus'
- 'Gigadipus is corrected as Gigandipus and belongs to Gigandipodidae'
- 'Gigadipus caudatus is recombined as Gigandipus caudatus'
- 'Gigadipus caudatus is recombined as Gigantitherium caudatum' according to E. Hitchcock 1858
- 'Gigandipodidae belongs to Theropoda'
- 'Gigantitherium is a subjective synonym of Gigadipus'
- 'Gigantitherium minus is recombined as Apatichnus minor'
- 'Grallator belongs to Grallatoridae'
- 'Grallator cuneatus belongs to Grallator'
- 'Grallator cursorius belongs to Grallator'
- 'Grallator formosus belongs to Grallator'
- 'Grallator tenuis belongs to Grallator'
- 'Grallatoridae belongs to Theropoda'
- 'Herpystezoum belongs to Vermes'
- 'Hyphepus belongs to Gigandipodidae'
- 'Hyphepus fieldi belongs to Hyphepus'
- 'Leptonyx is replaced by Stenonyx'
- 'Leptonyx lateralis is recombined as Stenonyx lateralis'
- 'Lithographus belongs to Insecta'
- 'Megadactylus is replaced by Amphisaurus'
- 'Megadactylus polyzelus is recombined as Anchisaurus polyzelus'
- 'Megalosauria was reranked as a superfamily and belongs to Theropoda'
- '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 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'
- 'Ornithischia belongs to Dinosauria'
- 'Ornithoidichnites gracillimus is recombined as Anomoepus gracillimus'
- 'Ornithoidichnites lyellii is a subjective synonym of Sauropus barrattii'
- 'Ornithoidichnites sillimani is recombined as Anchisauripus sillimani'
- 'Ornitholestes belongs to Podokesauridae'
- 'Orthopoda belongs to Ornithischia'
- 'Otouphepodidae belongs to Theropoda'
- 'Otouphepus belongs to Otouphepodidae'
- 'Otouphepus magnificus belongs to Otouphepus'
- 'Otouphepus minor belongs to Otouphepus'
- 'Otozoidae belongs to Orthopoda'
- 'Otozoum belongs to Otozoidae'
- 'Otozoum moodii belongs to Otozoum'
- 'Palaeosaurus belongs to Anchisauridae'
- 'Parasuchia was reranked as a order and belongs to Reptilia'
- 'Phytosauria belongs to Parasuchia'
- 'Phytosauridae belongs to Phytosauria'
- 'Plesiornis quadrupes is a subjective synonym of Anomoepus intermedius'
- 'Podokesauridae belongs to Compsognatha'
- 'Podokesaurus belongs to Podokesauridae'
- 'Podokesaurus holyokensis belongs to Podokesaurus'
- 'Procompsognathus triassicus belongs to Procompsognathus'
- 'Rutiodon belongs to Phytosauridae'
- 'Rutiodon manhattanensis belongs to Rutiodon'
- 'Sagittarius belongs to Ichnofossils'
- 'Saurischia belongs to Dinosauria'
- 'Sauroidichnites barrattii is recombined as Sauropus barrattii'
- 'Sauroidichnites deweyi is recombined as Batrachopus deweyi'
- 'Sauropoda belongs to Saurischia'
- 'Sauropus belongs to Anomoepodidae'
- 'Selenichnidae belongs to Theropoda'
- 'Selenichnus belongs to Selenichnidae'
- 'Selenichnus breviusculus belongs to Selenichnus'
- 'Selenichnus falcatus belongs to Selenichnus'
- 'Stegomus belongs to Aetosauridae'
- 'Stegomus arcuatus belongs to Stegomus'
- 'Stegomus longipes belongs to Stegomus'
- 'Stegosauria belongs to Ornithischia'
- 'Stenonyx belongs to Grallatoridae'
- 'Thecodontosaurus belongs to Anchisauridae'
- 'Theropoda was reranked as a suborder and belongs to Dinosauria'
- 'Trisulcus belongs to Mollusca'
- 'Unisulcus is an objective synonym of Herpystezoum'