Opinions from J. A. Lillegraven and M. C. McKenna 1986
- 'Allotheria was reranked as a subclass and belongs to Mammalia'
- 'Alphadon belongs to Didelphidae'
- 'Alphadon attaragos belongs to Alphadon'
- 'Alphadon halleyi belongs to Alphadon'
- 'Alphadon lulli belongs to Alphadon'
- 'Alphadon russelli belongs to Alphadon'
- 'Alphadon sahnii belongs to Alphadon'
- 'Cimexomys magister is recombined as Paracimexomys magister'
- 'Cimexomys priscus is recombined as Paracimexomys priscus'
- 'Cimolomyidae belongs to Multituberculata'
- 'Cimolomys belongs to Cimolomyidae'
- 'Cimolomys clarki belongs to Cimolomys'
- 'Cimolomys gracilis belongs to Cimolomys'
- 'Didelphidae belongs to Marsupialia'
- 'Dryolestidae belongs to Dryolestoidea'
- 'Dryolestoidea was reranked as a unranked clade and belongs to Theria'
- 'Erinaceoidea belongs to Insectivora'
- 'Eutheria belongs to Theria'
- 'Falepetrus belongs to Theria'
- 'Falepetrus barwini belongs to Falepetrus'
- 'Gypsonictops belongs to Insectivora'
- 'Gypsonictops lewisi belongs to Gypsonictops'
- 'Insectivora belongs to Eutheria'
- 'Marsupialia was reranked as a order and belongs to Metatheria'
- 'Meniscoessus belongs to Cimolomyidae'
- 'Meniscoessus intermedius belongs to Meniscoessus'
- 'Mesodma belongs to Neoplagiaulacidae'
- 'Metatheria was reranked as a subclass and belongs to Theria'
- 'Multituberculata belongs to Allotheria'
- 'Neoplagiaulacidae belongs to Ptilodontoidea'
- 'Nyctitheriidae belongs to Erinaceoidea'
- 'Paracimexomys belongs to Multituberculata'
- 'Paranyctoides belongs to Nyctitheriidae'
- 'Paranyctoides megakeros belongs to Paranyctoides'
- 'Pediomyinae was reranked as the family Pediomyidae and belongs to Marsupialia'
- 'Pediomys belongs to Pediomyidae'
- 'Ptilodontoidea belongs to Multituberculata'
- 'Ptilodus primaevus is recombined as Mesodma primaeva'
- 'Theria belongs to Mammalia'