Opinions from O. C. Marsh 1872
- 'Anisacodon belongs to Insectivora'
- 'Anisacodon elegans belongs to Anisacodon'
- 'Antiacodon venustus belongs to Antiacodon'
- 'Apatemys bellulus belongs to Apatemys'
- 'Apatemys bellus belongs to Apatemys'
- 'Bathrodon annectens belongs to Bathrodon'
- 'Bathrodon typus belongs to Bathrodon'
- 'Centetodon altidens belongs to Centetodon'
- 'Centetodon pulcher belongs to Centetodon'
- 'Centracodon delicatus belongs to Centracodon'
- 'Colonomys celer belongs to Colonomys'
- 'Entomacodon angustidens belongs to Entomacodon'
- 'Entomacodon minutus belongs to Entomacodon'
- 'Entomodon comptus belongs to Entomodon'
- 'Euryacodon lepidus belongs to Euryacodon'
- 'Harpalodon sylvestris belongs to Harpalodon'
- 'Harpalodon vulpinus belongs to Harpalodon'
- 'Helaletes boops belongs to Helaletes'
- 'Helohyus plicodon belongs to Helohyus'
- 'Hemiacodon gracilis belongs to Hemiacodon'
- 'Hemiacodon nanus belongs to Hemiacodon'
- 'Hemiacodon pucillus belongs to Hemiacodon'
- 'Limnocyon agilis belongs to Limnocyon'
- 'Limnocyon riparius belongs to Limnocyon'
- 'Limnofelis ferox belongs to Limnofelis'
- 'Limnofelis latidens belongs to Limnofelis'
- 'Limnotherium affine belongs to Limnotherium'
- 'Lophiodon nanus is recombined as Helaletes nanus'
- 'Mesacodon speciosus belongs to Mesacodon'
- 'Nyctilestes serotinum is corrected as Nyctilestes serotinus and belongs to Nyctilestes'
- 'Orohippus belongs to Equidae'
- 'Orotherium uintanum belongs to Orotherium'
- 'Palaeacodon vagus belongs to Palaeacodon'
- 'Paramys robustus belongs to Paramys'
- 'Passalacodon littoralis belongs to Passalacodon'
- 'Sciuravus parvidens belongs to Sciuravus'
- 'Stenacodon rarus belongs to Stenacodon'
- 'Taxymys lucaris belongs to Taxymys'
- 'Telmalestes crassus belongs to Telmalestes'
- 'Thinocyon velox belongs to Thinocyon'
- 'Thinolestes anceps belongs to Thinolestes'
- 'Thinotherium validum belongs to Thinotherium'
- 'Tillomys parvus belongs to Tillomys'
- 'Tillomys senex belongs to Tillomys'
- 'Triacodon grandis belongs to Triacodon'
- 'Triacodon nanus belongs to Triacodon'
- 'Viverravus nitidus belongs to Viverravus'
- 'Ziphacodon rugatus belongs to Ziphacodon'