Opinions from O. C. Marsh 1889
- 'Allodon belongs to Allotheria'
- 'Bolodon belongs to Allotheria'
- 'Camptomus belongs to Allotheria'
- 'Camptomus amplus belongs to Camptomus'
- 'Cimolestes belongs to Cimolestidae'
- 'Cimolestes curtus belongs to Cimolestes'
- 'Cimolestes incisus belongs to Cimolestes'
- 'Cimolestidae belongs to Marsupialia'
- 'Cimolodon belongs to Cimolodontidae'
- 'Cimolodon nitidus belongs to Cimolodon'
- 'Cimolodontidae belongs to Mammalia'
- 'Cimolomys belongs to Tritylodontidae'
- 'Cimolomys bellus belongs to Cimolomys'
- 'Cimolomys gracilis belongs to Cimolomys'
- 'Ctenacodon belongs to Allotheria'
- 'Didelphodon belongs to Didelphidae'
- 'Didelphodon comptus belongs to Didelphodon'
- 'Didelphodon ferox belongs to Didelphodon'
- 'Didelphodon vorax belongs to Didelphodon'
- 'Dipriodon belongs to Dipriodontidae'
- 'Dipriodon lunatus belongs to Dipriodon'
- 'Dipriodon robustus belongs to Dipriodon'
- 'Dipriodontidae belongs to Mammalia'
- 'Dryolestes tenax belongs to Dryolestes'
- 'Halodon belongs to Plagiaulacidae'
- 'Halodon sculptus belongs to Halodon'
- 'Halodon serratus belongs to Halodon'
- 'Microlestes belongs to Allotheria'
- 'Nanomys belongs to Mammalia'
- 'Nanomys minutus belongs to Nanomys'
- 'Pediomys belongs to Mammalia'
- 'Pediomys elegans belongs to Pediomys'
- 'Plagiaulax belongs to Allotheria'
- 'Selenacodon belongs to Mammalia'
- 'Selenacodon fragilis belongs to Selenacodon'
- 'Stereognathus belongs to Allotheria'
- 'Triglyphus belongs to Tritylodontidae'
- 'Triglyphus belongs to Allotheria'
- 'Tripriodon belongs to Mammalia'
- 'Tripriodon caperatus belongs to Tripriodon'
- 'Tripriodon coelatus belongs to Tripriodon'
- 'Tritylodon belongs to Tritylodontidae'
- 'Tritylodon belongs to Allotheria'