Opinions from D. K. Brezinski 1998
- 'Australosutura belongs to Brachymetopidae' according to P.A. Jell and J.M. Adrain 2003
- 'Australosutura belongs to Brachymetopidae'
- 'Australosutura llanoensis belongs to Australosutura'
- 'Brachymetopidae belongs to Proetida'
- 'Carbonocoryphe belongs to Proetidae'
- 'Carbonocoryphe planucauda belongs to Carbonocoryphe'
- 'Griffithidella belongs to Proetidae'
- 'Griffithidella (Griffithidella) belongs to Griffithidella' according to Hessler 1965
- 'Proetus (Pudoproetus) was reranked as Pudoproetus and belongs to Proetidae'
- 'Proetus (Pudoproetus) chappelensis belongs to Proetus (Pudoproetus)' according to Hessler 1963
- 'Proetus (Pudoproetus) chappelensis is recombined as Pudoproetus chappelensis'
- 'Proetus doris belongs to Proetus' according to Hall 1860
- 'Proetus doris is recombined as Griffithidella doris' according to Hessler 1965
- 'Proetus doris is recombined as Griffithidella doris'
- 'Proetus doris is recombined as Griffithidella (Griffithidella) doris' according to Hahn and Hahn 1970
- 'Proetus roundyi belongs to Proetus' according to Girty 1926
- 'Proetus roundyi is recombined as Thigiffides roundyi' according to Hessler 1965
- 'Proetus roundyi is recombined as Thigriffides roundyi'
- 'Proetus roundyi is recombined as Griffithidella (Thigriffides) roundyi' according to Hahn and Hahn 1970
- 'Proetus roundyi alternatus belongs to Proetus roundyi' according to Girty 1926
- 'Proetus roundyi alternatus is recombined as Griffithidella depressus alternatus' according to Hessler 1965
- 'Proetus roundyi alternatus is recombined as Griffithidella (Griffithidella) depressa alternata' according to Hahn and Hahn 1970
- 'Proetus roundyi alternatus is recombined as Griffithidella alternata'
- 'Proetus roundyi depressus belongs to Proetus roundyi' according to Girty 1926
- 'Proetus roundyi depressus is recombined as Griffithidella depressus' according to Hessler 1965
- 'Proetus roundyi depressus is recombined as Griffithidella (Griffithidella) depressa' according to Hahn and Hahn 1970
- 'Proetus roundyi depressus is recombined as Carbonocoryphe depressa'
- 'Thigriffides belongs to Proetidae' according to J.W. Salter 1864
- 'Thigriffides was reranked as Griffithidella (Thigriffides) and belongs to Griffithidella' according to Hahn and Hahn 1970
- 'Thigriffides [misspelled as Thigiffides] belongs to Proetidae'