Opinions from R. E. Sloan and L. Van Valen 1965
- 'Allotheria was reranked as a subclass and belongs to Mammalia'
- 'Alphadon belongs to Didelphidae'
- 'Arctocyonidae belongs to Condylarthra'
- 'Catopsalis belongs to Taeniolabididae'
- 'Catopsalis joyneri belongs to Catopsalis'
- 'Cimexomys belongs to Ectypodidae'
- 'Cimexomys minor belongs to Cimexomys'
- 'Cimolestes belongs to Palaeoryctidae'
- 'Cimolodon belongs to Ptilodontidae'
- 'Cimolomyidae belongs to Taeniolabidoidea'
- 'Cimolomys belongs to Cimolomyidae'
- 'Condylarthra belongs to Eutheria'
- 'Didelphidae belongs to Metatheria'
- 'Didelphodon belongs to Didelphidae'
- 'Ectypodidae belongs to Ptilodontoidea'
- 'Ectypodus belongs to Ectypodidae'
- 'Erinaceoidea belongs to Insectivora'
- 'Essonodon belongs to Ptilodontidae'
- 'Euangelistes petersoni is recombined as Gypsonictops petersoni'
- 'Eucosmodon gratus is recombined as Stygimys gratus'
- 'Eucosmodon sparsus is a subjective synonym of Stygimys jepseni'
- 'Eucosmodon teilhardi is recombined as Stygimys teilhardi'
- 'Eucosmodontidae belongs to Taeniolabidoidea'
- 'Eutheria belongs to Theria'
- 'Gypsonictops belongs to Erinaceoidea'
- 'Insectivora belongs to Eutheria'
- 'Leptictidae belongs to Insectivora'
- 'Meniscoessus belongs to Cimolomyidae'
- 'Mesodma belongs to Ectypodidae'
- 'Mesodma thompsoni belongs to Mesodma'
- 'Metatheria was reranked as a subclass and belongs to Theria'
- 'Multituberculata belongs to Allotheria'
- 'Neoplagiaulax belongs to Ectypodidae'
- 'Oxyclaenidae was reranked as the subfamily Oxyclaeninae and belongs to Arctocyonidae'
- 'Palaeoryctidae belongs to Insectivora'
- 'Parectypodus belongs to Ectypodidae'
- 'Parectypodus jepseni is recombined as Stygimys jepseni'
- 'Pediomys belongs to Didelphidae'
- 'Procerberinae belongs to Leptictidae'
- 'Procerberus belongs to Procerberinae'
- 'Procerberus formicarum belongs to Procerberus'
- 'Protungulatum belongs to Oxyclaeninae'
- 'Protungulatum donnae belongs to Protungulatum'
- 'Ptilodontidae belongs to Ptilodontoidea'
- 'Ptilodontoidea belongs to Multituberculata'
- 'Stygimys belongs to Eucosmodontidae'
- 'Stygimys kuszmauli belongs to Stygimys'
- 'Taeniolabididae belongs to Taeniolabidoidea'
- 'Taeniolabidoidea belongs to Multituberculata'
- 'Theria belongs to Mammalia'