Opinions from E. L. Simons 1960
- 'Archaeolambda planicanina belongs to Archaeolambda' according to Flerov 1952
- 'Archaeolambda planicanina is recombined as Haplolambda planicanina'
- 'Barylambda belongs to Barylambdidae'
- 'Barylambdidae belongs to Pantolambdoidea'
- 'Caenolambda belongs to Pantolambdidae'
- 'Caenolambda jepseni belongs to Caenolambda'
- 'Caenolambda pattersoni belongs to Caenolambda'
- 'Coryphodon eocaenus belongs to Coryphodon'
- 'Coryphodon proterus belongs to Coryphodon'
- 'Coryphodontidae belongs to Coryphodontoidea'
- 'Coryphodontoidea belongs to Pantodonta'
- 'Eudinoceras belongs to Coryphodontidae'
- 'Haplolambda belongs to Barylambdidae'
- 'Haplolambda quinni belongs to Haplolambda'
- 'Hypercoryphodon belongs to Coryphodontidae'
- 'Ignatiolambda belongs to Barylambdidae'
- 'Ignatiolambda barnesi belongs to Ignatiolambda'
- 'Leptolambda belongs to Barylambdidae'
- 'Leptolambda schmidti belongs to Leptolambda'
- 'Lophiodon (Coryphodon) was reranked as Coryphodon and belongs to Coryphodontidae'
- 'Pantolambda belongs to Pantolambdidae'
- 'Pantolambda bathmodon belongs to Pantolambda'
- 'Pantolambda cavirictus belongs to Pantolambda'
- 'Pantolambda intermedius belongs to Pantolambda'
- 'Pantolambdidae belongs to Pantolambdoidea'
- 'Pantolambdoidea belongs to Pantodonta'
- 'Sparactolambda is a subjective synonym of Titanoides'
- 'Sparactolambda looki is a subjective synonym of Titanoides primaevus'
- 'Sparactolambda looki belongs to Sparactolambda' according to Patterson 1939
- 'Titanoideidae belongs to Pantolambdoidea'
- 'Titanoides belongs to Titanoideidae'
- 'Titanoides faberi is recombined as Barylambda faberi'
- 'Titanoides faberi is recombined as Barylambda faberi' according to Patterson 1937
- 'Titanoides faberi belongs to Titanoides' according to Patterson 1933
- 'Titanoides gidleyi belongs to Titanoides'
- 'Titanoides majus belongs to Titanoides'
- 'Titanoides primaevus belongs to Titanoides'
- 'Titanoides simpsoni belongs to Titanoides'
- 'Titanoides zeuxis belongs to Titanoides'