Opinions from P. Gervais 1852
- 'Aepisaurus belongs to Mosasauridae'
- 'Aepisaurus elephantinus belongs to Aepisaurus'
- 'Atoposaurus belongs to Homeosauridae'
- 'Balaena lamanoni belongs to Balaena'
- 'Balaena musculus is recombined as Rorqualus musculus'
- 'Centropus belongs to Cuculidae'
- 'Centropus antiquus belongs to Centropus'
- 'Cetiosaurus conybeari is recombined as Pelorosaurus conybeari'
- 'Champsodelphis belongs to Delphinidae'
- 'Cimoliornis belongs to Pterodactylidae'
- 'Cimoliornis diomedeus belongs to Cimoliornis' according to Owen 1846
- 'Cimoliornis diomedeus belongs to Cimoliornis'
- 'Crenidelphinus is a subjective synonym of Squalodon'
- 'Delphinoides is a subjective synonym of Squalodon'
- 'Delphinus bordae is recombined as Champsodelphis bordae'
- 'Delphinus dationum belongs to Delphinus'
- 'Delphinus delphis belongs to Delphinus'
- 'Delphinus dubius belongs to Delphinus'
- 'Delphinus griseus belongs to Delphinus'
- 'Delphinus macrogenius is recombined as Champsodelphis macrogenius'
- 'Delphinus melas belongs to Delphinus'
- 'Delphinus orca belongs to Delphinus'
- 'Delphinus phocoena is corrected as Delphinus phocaena and belongs to Delphinus'
- 'Delphinus pseudodelphis belongs to Delphinus'
- 'Delphinus renovi belongs to Delphinus'
- 'Delphinus rissoanus belongs to Delphinus'
- 'Delphinus rostratus belongs to Delphinus'
- 'Delphinus sowerbiensis [misspelled as Ziphius sowerbensis] belongs to Ziphius'
- 'Delphinus tursio belongs to Delphinus'
- 'Gallus bravardi belongs to Gallus'
- 'Heterosaurus neocomiensis belongs to Heterosaurus'
- 'Homoeosaurus [misspelled as Homeosaurus] belongs to Homeosauridae'
- 'Haplocetus is a misspelling of Hoplocetus'
- 'Hylaeosaurus armatus belongs to Hylaeosaurus'
- 'Hyperoodon butskopf is corrected as Hyperoodon butzkopf and belongs to Hyperoodon'
- 'Ichthyosaurus lunevillensis belongs to Ichthyosaurus' according to Alberti 1837
- 'Ichthyosaurus lunevillensis is a subjective synonym of Simosaurus gaillardoti'
- 'Iguanodon belongs to Iguanodontidae'
- 'Iguanodon mantelli [misspelled as Iguanodon mantellii] belongs to Iguanodon'
- 'Megalosaurus bucklandii belongs to Megalosaurus'
- 'Metriorhynchus geoffroyii is a subjective synonym of Steneosaurus rostrominor'
- 'Metriorhynchus geoffroyii is recombined as Streptospondylus geoffroyi' according to Meyer 1847
- 'Mosasaurus belongs to Mosasauridae'
- 'Onchosaurus belongs to Mosasauridae'
- 'Onchosaurus radicalis belongs to Onchosaurus'
- 'Oplosaurus belongs to Mosasauridae'
- 'Phocodon is a subjective synonym of Squalodon'
- 'Phoenicopterus croizeti belongs to Phoenicopterus'
- 'Physeter macrocephalus belongs to Physeter'
- 'Placosaurus rugosus belongs to Placosaurus'
- 'Poekilopleuron bucklandii belongs to Poekilopleuron'
- 'Sapheosaurus belongs to Homeosauridae'
- 'Simosaurus gaillardoti belongs to Simosaurus'
- 'Sitta cuvieri belongs to Sitta'
- 'Squalodon grateloupii belongs to Squalodon'
- 'Steneosaurus rostrominor belongs to Steneosaurus'
- 'Tringa hoffmanni belongs to Tringa'
- 'Ziphius cavirostris belongs to Ziphius'