Opinions from G. G. Simpson 1935
- 'Acoelodidae belongs to Typotheria'
- 'Borhyaenidae belongs to Marsupialia'
- 'Carodnia belongs to Eutheria'
- 'Carodnia feruglioi belongs to Carodnia'
- 'Ctalecarodnia belongs to Eutheria'
- 'Ctalecarodnia cabrerai belongs to Ctalecarodnia'
- 'Didolodontidae belongs to Condylarthra'
- 'Entelonychia belongs to Notoungulata'
- 'Eochalicotherium is a subjective synonym of Isotemnus'
- 'Ernestokokenia belongs to Didolodontidae'
- 'Ernestokokenia chaishoer belongs to Ernestokokenia'
- 'Ernestokokenia yirunhor belongs to Ernestokokenia'
- 'Gashternia belongs to Marsupialia'
- 'Gashternia ctalehor belongs to Gashternia'
- 'Henricosbornia belongs to Henricosborniidae'
- 'Henricosbornia waitehor belongs to Henricosbornia'
- 'Henricosborniidae belongs to Notioprogonia'
- 'Isotemnidae belongs to Entelonychia'
- 'Isotemnus belongs to Isotemnidae'
- 'Isotemnus ctalego belongs to Isotemnus'
- 'Isotemnus emundatus belongs to Isotemnus' according to Ameghino 1897
- 'Isotemnus emundatus is recombined as Maxschlosseria emundata'
- 'Josepholeidya belongs to Proterotheriidae'
- 'Kibenikhoria belongs to Acoelodidae'
- 'Kibenikhoria get belongs to Kibenikhoria'
- 'Notioprogonia belongs to Notoungulata'
- 'Notopithecidae belongs to Typotheria'
- 'Notoprotogonia is a subjective synonym of Ernestokokenia'
- 'Notostylopidae belongs to Notioprogonia'
- 'Patene belongs to Borhyaenidae'
- 'Patene coluapiensis belongs to Patene'
- 'Peripantostylops belongs to Henricosborniidae'
- 'Peripantostylops orehor belongs to Peripantostylops'
- 'Polydolopidae belongs to Marsupialia'
- 'Polydolops belongs to Polydolopidae'
- 'Polydolops kamektsen belongs to Polydolops'
- 'Polydolops winecage belongs to Polydolops'
- 'Postpithecus belongs to Henricosborniidae'
- 'Proterotheriidae belongs to Litopterna'
- 'Ricardolydekkeria belongs to Proterotheriidae'
- 'Seudenius belongs to Notioprogonia'
- 'Seudenius cteronc belongs to Seudenius'
- 'Seumadia belongs to Polydolopidae'
- 'Seumadia yapa belongs to Seumadia'
- 'Shecenia belongs to Trigonostylopoidea'
- 'Shecenia ctirneru belongs to Shecenia'
- 'Transpithecus belongs to Notopithecidae'
- 'Typotheria belongs to Notoungulata'
- 'Victorlemoineia belongs to Proterotheriidae'
- 'Wainka belongs to Proterotheriidae'
- 'Wainka tshotshe belongs to Wainka'