Opinions from J. A. Holman and U. Fritz 2001
- 'Actinemys belongs to Emydinae'
- 'Calemys is a subjective synonym of Glyptemys'
- 'Clemmys belongs to Emydinae'
- 'Clemmys backmani is a nomen dubium'
- 'Clemmys backmani belongs to Clemmys' according to Russell 1934
- 'Actinemys hesperia is a subjective synonym of Actinemys marmorata'
- 'Clemmys hesperia belongs to Clemmys' according to O. P. Hay 1903
- 'Clemmys morrisiae is a nomen dubium'
- 'Clemmys owyheensis belongs to Clemmys' according to Brattstrom and Sturn 1959
- 'Clemmys owyheensis is recombined as Actinemys owyheensis'
- 'Clemmys saxea is a nomen dubium'
- 'Clemmys saxea belongs to Clemmys' according to O. P. Hay 1903
- 'Emys marmorata is recombined as Actinemys marmorata' according to Agassiz 1857
- 'Emys marmorata belongs to Emys' according to Baird and Girard 1852
- 'Emys marmorata is recombined as Actinemys marmorata'
- 'Emys marmorata is recombined as Clemmys marmorata' according to S. B. McDowell 1964
- 'Emys punctata belongs to Emys' according to Schoepff 1792
- 'Emys punctata is recombined as Clemmys punctata' according to G. Baur 1892
- 'Clemmys punctata is a subjective synonym of Clemmys guttata'
- 'Glyptemys belongs to Emydinae'
- 'Glyptemys valentinensis belongs to Glyptemys'
- 'Testudo guttata is recombined as Clemmys guttata' according to S. B. McDowell 1964
- 'Testudo guttata is recombined as Clemmys guttata'
- 'Testudo guttata belongs to Testudo' according to Schneider 1792
- 'Testudo insculpta is recombined as Clemmys insculpta' according to S. B. McDowell 1964
- 'Testudo insculpta belongs to Testudo' according to Le Conte 1830
- 'Testudo insculpta is recombined as Glyptemys insculpta'
- 'Testudo insculpta is recombined as Glyptemys insculpta' according to Agassiz 1857
- 'Testudo muhlenbergii is recombined as Clemmys muhlenbergii' according to S. B. McDowell 1964
- 'Testudo muhlenbergii is recombined as Glyptemys muhlenbergii'
- 'Testudo muhlenbergii is recombined as Calemys muhlenbergii' according to Agassiz 1857
- 'Testudo muhlenbergii belongs to Testudo' according to Schoepff 1801