Opinions from W. H. Flower 1883
- 'Aeluroidea belongs to Carnivora'
- 'Ailurina was reranked as the family Ailuridae and belongs to Arctoidea'
- 'Anomaluridae belongs to Simplicidentata'
- 'Anthropoidea belongs to Primates'
- 'Antilocapridae belongs to Pecora'
- 'Archaeoceti belongs to Cetacea'
- 'Arctoidea belongs to Carnivora'
- 'Artiodactyla belongs to Ungulata'
- 'Balanadae is corrected as Balaenidae and belongs to Mystacoceti'
- 'Bovidae belongs to Pecora'
- 'Bradypidae is corrected as Bradypodidae and belongs to Pilosa'
- 'Camelidae belongs to Tylopoda'
- 'Canidae belongs to Cynoidea'
- 'Carnivora belongs to Eutheria'
- 'Castoridae belongs to Simplicidentata'
- 'Caviidae belongs to Simplicidentata'
- 'Cebidae belongs to Anthropoidea'
- 'Centetidae belongs to Insectivora'
- 'Cercopithecidae belongs to Anthropoidea'
- 'Cervidae belongs to Pecora'
- 'Cetacea belongs to Eutheria'
- 'Cheiromydae belongs to Lemuroidea'
- 'Chinchillidae belongs to Simplicidentata'
- 'Chiroptera belongs to Eutheria'
- 'Chrysochloridae belongs to Insectivora'
- 'Cynoidea belongs to Carnivora'
- 'Dasipidae is corrected as Dasypodidae and belongs to Loricata'
- 'Dasyuridae belongs to Marsupialia'
- 'Delphinidae belongs to Odontoceti'
- 'Dicotylidae belongs to Suina'
- 'Didelphidae belongs to Marsupialia'
- 'Dinomyidae belongs to Simplicidentata'
- 'Dipodidae belongs to Simplicidentata'
- 'Duplicidentata belongs to Rodentia'
- 'Echidnidae belongs to Monotremata'
- 'Edentata belongs to Eutheria'
- 'Elephantidae belongs to Proboscidea'
- 'Emballonuridae belongs to Microchiroptera'
- 'Equidae belongs to Perissodactyla'
- 'Felidae belongs to Aeluroidea'
- 'Galeopithecidae belongs to Dermoptera'
- 'Geomyidae belongs to Simplicidentata'
- 'Giraffidae belongs to Pecora'
- 'Halicoridae belongs to Sirenia'
- 'Hapalidae belongs to Anthropoidea'
- 'Haplodontidae belongs to Simplicidentata'
- 'Hippopotamidae belongs to Suina'
- 'Hominidae belongs to Anthropoidea'
- 'Hyaenidae belongs to Aeluroidea'
- 'Hyracidae belongs to Hyracoidea'
- 'Hyracoidea belongs to Ungulata'
- 'Hystricidae belongs to Simplicidentata'
- 'Insectivora belongs to Eutheria'
- 'Lagomyidae belongs to Duplicidentata'
- 'Lemuridae belongs to Lemuroidea'
- 'Lemuroidea was reranked as a superfamily and belongs to Primates'
- 'Leporidae belongs to Duplicidentata'
- 'Lophiomyidae belongs to Simplicidentata'
- 'Loricata belongs to Edentata'
- 'Macropidae is corrected as Macropodidae and belongs to Marsupialia'
- 'Macroscelididae belongs to Insectivora'
- 'Manatidae belongs to Sirenia'
- 'Marsupialia was reranked as a order and belongs to Metatheria'
- 'Megachiroptera belongs to Chiroptera'
- 'Metatheria was reranked as a subclass and belongs to Mammalia'
- 'Microchiroptera belongs to Chiroptera'
- 'Monotremata belongs to Prototheria'
- 'Muridae belongs to Simplicidentata'
- 'Mustelidae belongs to Arctoidea'
- 'Myoxidae belongs to Simplicidentata'
- 'Myrmecophagidae belongs to Pilosa'
- 'Mystacoceti belongs to Cetacea'
- 'Nycteridae belongs to Microchiroptera'
- 'Octodontidae belongs to Simplicidentata'
- 'Odontoceti belongs to Cetacea'
- 'Ornithorhynchidae belongs to Monotremata'
- 'Orycteropodidae belongs to Tubulidentata'
- 'Otariina was reranked as the family Otariidae and belongs to Pinnipedia'
- 'Pecora belongs to Artiodactyla'
- 'Peramelidae belongs to Marsupialia'
- 'Perissodactyla was reranked as a order and belongs to Ungulata'
- 'Phacochoeridae belongs to Suina'
- 'Phalangistadae is corrected as Phalangistidae and belongs to Marsupialia'
- 'Phocadae is corrected as Phocidae and belongs to Pinnipedia'
- 'Phyllostomidae belongs to Microchiroptera'
- 'Physeteridae belongs to Odontoceti'
- 'Pilosa belongs to Edentata'
- 'Pinnipedia was reranked as a suborder and belongs to Carnivora'
- 'Platanistina was reranked as the family Platanistidae and belongs to Odontoceti'
- 'Potamogalidae belongs to Insectivora'
- 'Primates belongs to Eutheria'
- 'Proboscidea belongs to Ungulata'
- 'Procyonidae belongs to Arctoidea'
- 'Protelidae belongs to Aeluroidea'
- 'Prototheria belongs to Mammalia'
- 'Pteropodidae belongs to Megachiroptera'
- 'Rhinocerotidae belongs to Perissodactyla'
- 'Rhinolophidae belongs to Microchiroptera'
- 'Rodentia belongs to Eutheria'
- 'Sciuridae belongs to Simplicidentata'
- 'Simiidae belongs to Anthropoidea'
- 'Simplicidentata belongs to Rodentia'
- 'Sirenia belongs to Eutheria'
- 'Solenodontidae belongs to Insectivora'
- 'Soricidae belongs to Insectivora'
- 'Spalacidae belongs to Simplicidentata'
- 'Suidae belongs to Suina'
- 'Suina belongs to Artiodactyla'
- 'Talpini was reranked as the family Talpidae and belongs to Insectivora'
- 'Taperidae is corrected as Tapiridae and belongs to Perissodactyla'
- 'Tarsiidae belongs to Lemuroidea'
- 'Tragulina belongs to Artiodactyla'
- 'Trichechidae belongs to Pinnipedia'
- 'Tubulidentata belongs to Eutheria'
- 'Tupaiidae belongs to Insectivora'
- 'Tylopoda belongs to Artiodactyla'
- 'Ungulata belongs to Eutheria'
- 'Vespertilionidae belongs to Microchiroptera'
- 'Viverridae belongs to Aeluroidea'