Opinions from M. C. McKenna 1975
- 'Acreodi belongs to Cete'
- 'Anagalida was reranked as a unranked clade and belongs to Leptictida'
- 'Ancylopoda belongs to Perissodactyla'
- 'Apatotheria was reranked as a suborder and belongs to Cimolesta'
- 'Archaeoceti belongs to Cetacea'
- 'Archonta was reranked as a unranked clade and belongs to Tokotheria'
- 'Arctocyonia belongs to Eparctocyona'
- 'Artiodactyla was reranked as a unranked clade and belongs to Eparctocyona'
- 'Astrapotheria belongs to Meridiungulata'
- 'Carnivora belongs to Ferae'
- 'Catarrhini belongs to Haplorhini'
- 'Ceratomorpha belongs to Perissodactyla'
- 'Cetacea belongs to Cete'
- 'Cete was reranked as a unranked clade and belongs to Ungulata'
- 'Chiroptera belongs to Archonta'
- 'Cimolesta belongs to Ferae'
- 'Cimolodonta belongs to Plagiaulacoidea'
- 'Cingulata was reranked as a order and belongs to Edentata'
- 'Cladotheria belongs to Trechnotheria'
- 'Condylarthra belongs to Phenacodonta'
- 'Creodonta was reranked as a order and belongs to Ferae'
- 'Deinotherioidea is corrected as Deinotherioidea and belongs to Proboscidea'
- 'Deltatheridia was reranked as a superorder and belongs to Preptotheria'
- 'Dermoptera belongs to Archonta'
- 'Desmostylia belongs to Tethytheria'
- 'Didelphodonta belongs to Cimolesta'
- 'Dinocerata belongs to Eparctocyona'
- 'Docodonta belongs to Eotheria'
- 'Dryolestoidea was reranked as a unranked clade and belongs to Cladotheria'
- 'Edentata was reranked as a unranked clade and belongs to Eutheria'
- 'Elephantoidea belongs to Proboscidea'
- 'Embrithopoda belongs to Eparctocyona'
- 'Eotheria was reranked as a subclass and belongs to Prototheria'
- 'Eparctocyona belongs to Ungulata'
- 'Epitheria belongs to Eutheria'
- 'Erinaceomorpha was reranked as a suborder and belongs to Insectivora'
- 'Ernotheria belongs to Epitheria'
- 'Eutheria was reranked as a unranked clade and belongs to Tribosphenida'
- 'Eutriconodonta was reranked as a suborder and belongs to Triconodonta'
- 'Ferae was reranked as a unranked clade and belongs to Tokotheria'
- 'Haplorrhini was reranked as the infraorder Haplorhini and belongs to Primates'
- 'Haramiyoidea belongs to Multituberculata'
- 'Hegetotheria belongs to Notoungulata'
- 'Hippomorpha belongs to Perissodactyla'
- 'Hyracoidea belongs to Phenacodonta'
- 'Ictopsia belongs to Leptictida'
- 'Insectivora was reranked as a unranked clade and belongs to Tokotheria'
- 'Kennalestida belongs to Ernotheria'
- 'Kuehneotheria belongs to Theria'
- 'Lagomorpha belongs to Anagalida'
- 'Leptictida belongs to Ernotheria'
- 'Litopterna belongs to Meridiungulata'
- 'Macroscelidea belongs to Anagalida'
- 'Marsupialia was reranked as a order and belongs to Tribosphenida'
- 'Megachiroptera belongs to Chiroptera'
- 'Meridiungulata belongs to Ungulata'
- 'Microchiroptera belongs to Chiroptera'
- 'Moeritherioidea belongs to Proboscidea'
- 'Monotremata belongs to Ornithodelphia'
- 'Morganucodonta was reranked as a suborder and belongs to Triconodonta'
- 'Multituberculata belongs to Ornithodelphia'
- 'Mysticeti belongs to Cetacea'
- 'Notioprogonia belongs to Notoungulata'
- 'Notoungulata belongs to Meridiungulata'
- 'Odontoceti belongs to Cetacea'
- 'Ornithodelphia belongs to Prototheria'
- 'Pantodonta was reranked as a suborder and belongs to Cimolesta'
- 'Pantolesta belongs to Cimolesta'
- 'Peramura belongs to Zatheria'
- 'Perissodactyla was reranked as a order and belongs to Phenacodonta'
- 'Phenacodonta belongs to Ungulata'
- 'Pholidota belongs to Preptotheria'
- 'Pilosa was reranked as a suborder and belongs to Edentata'
- 'Plagiaulacoidea belongs to Multituberculata'
- 'Platypoda belongs to Monotremata'
- 'Platyrrhini belongs to Haplorhini'
- 'Plesiadapiformes belongs to Primates'
- 'Preptotheria belongs to Epitheria'
- 'Primates belongs to Archonta'
- 'Proboscidea was reranked as a order and belongs to Tethytheria'
- 'Prototheria belongs to Mammalia'
- 'Ptilodontoidea was reranked as a unranked clade and belongs to Cimolodonta'
- 'Pyrotheria belongs to Meridiungulata'
- 'Rodentia belongs to Epitheria'
- 'Scandentia belongs to Archonta'
- 'Sirenia was reranked as a order and belongs to Tethytheria'
- 'Soricomorpha was reranked as a order and belongs to Insectivora'
- 'Strepsirrhini is corrected as Strepsirhini and belongs to Primates'
- 'Symmetrodonta was reranked as a unranked clade and belongs to Trechnotheria'
- 'Tachyglossa belongs to Monotremata'
- 'Taeniodonta was reranked as a suborder and belongs to Cimolesta'
- 'Taeniolabidoidea was reranked as a superfamily and belongs to Cimolodonta'
- 'Tarsiiformes belongs to Haplorhini'
- 'Tethytheria belongs to Ungulata'
- 'Theria belongs to Mammalia'
- 'Tillodontia belongs to Eparctocyona'
- 'Tokotheria belongs to Preptotheria'
- 'Toxodontia belongs to Notoungulata'
- 'Trechnotheria belongs to Theria'
- 'Tribosphenida was reranked as a infraclass and belongs to Zatheria'
- 'Triconodonta belongs to Eotheria'
- 'Trigonostylopoidea belongs to Meridiungulata'
- 'Tubulidentata belongs to Eparctocyona'
- 'Typotheria belongs to Notoungulata'
- 'Ungulata belongs to Tokotheria'
- 'Xenungulata belongs to Meridiungulata'
- 'Zatheria belongs to Cladotheria'