Opinions from J. D. Archibald 1998
- 'Aletodon belongs to Hyopsodontidae'
- 'Alostera belongs to Zhelestidae'
- 'Anacodon belongs to Arctocyoninae'
- 'Anisonchinae belongs to Periptychidae'
- 'Anisonchus belongs to Anisonchinae'
- 'Ankalagon belongs to Mesonychidae'
- 'Apheliscinae belongs to Mioclaenidae'
- 'Apheliscus belongs to Apheliscinae'
- 'Arctocyon belongs to Arctocyoninae'
- 'Arctocyonidae belongs to Ungulata'
- 'Arctocyoninae belongs to Arctocyonidae'
- 'Artiodactyla belongs to Ungulata'
- 'Baioconodon belongs to Cete'
- 'Bubogonia belongs to Mioclaenidae'
- 'Bulbulodentata belongs to Ungulata'
- 'Carcinodon belongs to Arctocyonidae'
- 'Carsioptychus belongs to Periptychinae'
- 'Cetacea belongs to Cete'
- 'Cete belongs to Cetungulata'
- 'Cetungulata belongs to Ungulata'
- 'Choeroclaenus belongs to Mioclaenidae'
- 'Chriacus belongs to Arctocyonidae'
- 'Colpoclaenus belongs to Arctocyoninae'
- 'Conacodon belongs to Conacodontinae'
- 'Conacodontinae belongs to Periptychidae'
- 'Copecion belongs to Phenacodontidae'
- 'Desmatoclaenus belongs to Arctocyonidae'
- 'Deuterogonodon belongs to Arctocyonidae'
- 'Dissacus belongs to Mesonychidae'
- 'Dorraletes belongs to Hyopsodontidae'
- 'Ectocion belongs to Meniscotheriinae'
- 'Ectoconus belongs to Periptychinae'
- 'Ellipsodon belongs to Mioclaenidae'
- 'Eoconodon belongs to Cete'
- 'Escatepos belongs to Periptychidae'
- 'Gillisonchus belongs to Anisonchinae'
- 'Goniacodon belongs to Cete'
- 'Hapalodectes belongs to Hapalodectidae'
- 'Hapalodectidae belongs to Cete'
- 'Haplaletes belongs to Hyopsodontidae'
- 'Haploconus belongs to Anisonchinae'
- 'Haplomylus belongs to Hyopsodontidae'
- 'Harpagolestes belongs to Mesonychidae'
- 'Hemithlaeus belongs to Periptychinae'
- 'Hyopsodontidae belongs to Ungulata'
- 'Hyopsodus belongs to Hyopsodontidae'
- 'Lambertocyon belongs to Arctocyonidae'
- 'Litaletes belongs to Mioclaenidae'
- 'Litomylus belongs to Hyopsodontidae'
- 'Loxolophus belongs to Arctocyonidae'
- 'Maiorana belongs to Periptychidae'
- 'Meniscotheriidae was reranked as the subfamily Meniscotheriinae and belongs to Phenacodontidae'
- 'Meniscotherium belongs to Meniscotheriinae'
- 'Mentoclaenodon belongs to Arctocyonidae'
- 'Mesonychidae belongs to Cete'
- 'Mesonyx belongs to Mesonychidae'
- 'Microclaenodon belongs to Cete'
- 'Mimatuta belongs to Periptychidae'
- 'Mimotricentes belongs to Arctocyonidae'
- 'Mioclaenidae belongs to Bulbulodentata'
- 'Mioclaenus belongs to Mioclaenidae'
- 'Oxyacodon belongs to Conacodontinae'
- 'Oxyclaenus belongs to Cete'
- 'Oxyprimus belongs to Hyopsodontidae'
- 'Oxytomodon belongs to Arctocyonidae'
- 'Pachyaena belongs to Mesonychidae'
- 'Paenungulata belongs to Taxeopoda'
- 'Periptychidae belongs to Bulbulodentata'
- 'Periptychinae belongs to Periptychidae'
- 'Periptychus belongs to Periptychinae'
- 'Phenacodaptes belongs to Apheliscinae'
- 'Phenacodonta belongs to Taxeopoda'
- 'Phenacodontidae belongs to Phenacodonta'
- 'Phenacodus belongs to Phenacodontidae'
- 'Platymastus belongs to Cete'
- 'Princetonia belongs to Arctocyonidae'
- 'Promioclaenus belongs to Mioclaenidae'
- 'Prothryptacodon belongs to Arctocyonidae'
- 'Protoselene belongs to Mioclaenidae'
- 'Protungulatum belongs to Ungulata'
- 'Ragnarok belongs to Cete'
- 'Stelocyon belongs to Cete'
- 'Synoplotherium belongs to Mesonychidae'
- 'Taxeopoda belongs to Cetungulata'
- 'Tetraclaenodon belongs to Phenacodonta'
- 'Thryptacodon belongs to Arctocyoninae'
- 'Tinuviel belongs to Periptychidae'
- 'Tiznatzinia belongs to Mioclaenidae'
- 'Triisodon belongs to Cete'
- 'Ungulata belongs to Ungulatomorpha'
- 'Ungulatomorpha belongs to Eutheria'
- 'Utemylus belongs to Hyopsodontidae'
- 'Wyolestes belongs to Cete'
- 'Zhelestidae belongs to Ungulatomorpha'