Opinions from H. Woodward 1885
- 'Cheirotherium [misspelled as Chirotherium] belongs to Sirenia'
- 'Cheirotherium subapenninum belongs to Cheirotherium'
- 'Chronozoon australae [misspelled as Chronozoon australe] belongs to Chronozoon'
- 'Crassitherium robustum belongs to Crassitherium'
- 'Dioplotherium manigaulti belongs to Dioplotherium'
- 'Eotherium aegyptiacum belongs to Eotherium'
- 'Felsinotherium forestii belongs to Felsinotherium'
- 'Felsinotherium gervaisi [misspelled as Felsinotherium gervaisii] belongs to Felsinotherium'
- 'Halicore australis belongs to Halicore'
- 'Halicore cuvierii is recombined as Halitherium cuvieri'
- 'Halicore tabernaculi belongs to Halicore'
- 'Halitherium angustifrons belongs to Halitherium'
- 'Halitherium bellunense belongs to Halitherium'
- 'Halitherium canhami belongs to Halitherium'
- 'Halitherium curvidens belongs to Halitherium'
- 'Halitherium serresii belongs to Halitherium'
- 'Halitherium veronense belongs to Halitherium'
- 'Hemicaulodon belongs to Sirenia'
- 'Hemicaulodon effodiens belongs to Hemicaulodon'
- 'Hippopotamus dubius is recombined as Halitherium dubium'
- 'Manati gigas is recombined as Rhytina gigas'
- 'Manatus americanus belongs to Manatus'
- 'Manatus coulombi belongs to Manatus'
- 'Manatus fossilis is recombined as Halitherium fossile'
- 'Manatus inornatus belongs to Manatus'
- 'Manatus latirostris belongs to Manatus'
- 'Manatus senegalensis belongs to Manatus'
- 'Metaxytherium beaumontii is recombined as Halitherium beaumontii'
- 'Pachyacanthus belongs to Sirenia'
- 'Pachyacanthus trachyspondylus belongs to Pachyacanthus'
- 'Prorastomus belongs to Sirenia'
- 'Prorastomus sirenoides belongs to Prorastomus'
- 'Pugmeodon schinzii is recombined as Halitherium schinzi'
- 'Rhytiodus capgrandi belongs to Rhytiodus'
- 'Trachytherium belongs to Sirenia'
- 'Trachytherium raulinii is corrected as Trachytherium raulini and belongs to Trachytherium'
- 'Trichechus dugon is recombined as Halicore dugong'