Opinions from D. B. Wright 1998
- 'Bothrolabis rostratus is a nomen dubium'
- 'Catagonus belongs to Tayassuinae'
- 'Catagonus metropolitanus belongs to Catagonus'
- 'Catagonus stenocephalus belongs to Catagonus'
- 'Catagonus wagneri belongs to Catagonus'
- 'Chaenohyus is a nomen dubium'
- 'Chaenohyus is a subjective synonym of Thinohyus' according to Sinclair 1905
- 'Chaenohyus decedens is a nomen dubium'
- 'Cynorca is a nomen dubium'
- 'Cynorca proterva is a nomen dubium'
- 'Desmathyus is a subjective synonym of Hesperhys'
- 'Desmathyus is a subjective synonym of Hesperhys' according to Simpson 1945
- 'Desmathyus brachydontus is recombined as Catagonus brachydontus'
- 'Desmathyus pinensis is recombined as Hesperhys pinensis'
- 'Desmathyus validus is a subjective synonym of Hesperhys vagrans'
- 'Dicotyles belongs to Tayassuinae'
- 'Dicotyles fossilis is recombined as Mylohyus fossilis'
- 'Dicotyles serus is recombined as Prosthennops serus'
- 'Dyseohyus belongs to Tayassuinae'
- 'Dyseohyus fricki belongs to Dyseohyus'
- 'Dyseohyus stirtoni is a subjective synonym of Prosthennops xiphodonticus'
- 'Floridachoerus belongs to Tayassuidae'
- 'Floridachoerus olseni belongs to Floridachoerus'
- 'Hesperhys belongs to Tayassuidae'
- 'Hesperhys vagrans belongs to Hesperhys'
- 'Hyotherium americanum is a nomen dubium'
- 'Macrogenis belongs to Tayassuinae'
- 'Mylohyus belongs to Tayassuinae'
- 'Palaeochoerus probus is recombined as Perchoerus probus'
- 'Palaeochoerus subaequans is a nomen dubium'
- 'Perchoerus belongs to Tayassuidae'
- 'Perchoerus minor is a nomen dubium'
- 'Platygonus belongs to Tayassuinae'
- 'Platygonus compressus belongs to Platygonus'
- 'Platygonus cumberlandensis belongs to Platygonus'
- 'Platygonus pearcei belongs to Platygonus'
- 'Platygonus rex is a nomen dubium'
- 'Prosthennops belongs to Tayassuinae'
- 'Prosthennops brachirostris is recombined as Platygonus brachirostris'
- 'Prosthennops crassigenis is recombined as Macrogenis crassigenis'
- 'Prosthennops edensis is recombined as Tayassu edensis'
- 'Prosthennops elmorei is recombined as Mylohyus elmorei'
- 'Prosthennops kernensis is a nomen dubium'
- 'Prosthennops longirostris is recombined as Mylohyus longirostris'
- 'Prosthennops niobrarensis belongs to Prosthennops'
- 'Prosthennops oregonensis is recombined as Platygonus oregonensis'
- 'Prosthennops xiphodonticus belongs to Prosthennops'
- 'Sus pecari is recombined as Tayassu pecari'
- 'Tayassu belongs to Tayassuinae'
- 'Tayassuinae belongs to Tayassuidae'
- 'Thinohyus belongs to Tayassuidae'
- 'Thinohyus (Bothrolabis) osmonti is a nomen dubium'
- 'Thinohyus lentus belongs to Thinohyus'
- 'Thinohyus nanus is a nomen dubium'
- 'Thinohyus socialis is recombined as Cynorca sociale'