Opinions from J. W. Bickham 1975
- 'Bataguridae was reranked as the subfamily Batagurinae and belongs to Emydidae'
- 'Chrysemys belongs to Emydinae'
- 'Clemmys belongs to Emydinae'
- 'Cyclemys belongs to Batagurinae'
- 'Deirochelys belongs to Emydinae'
- 'Emydinae belongs to Emydidae'
- 'Emydoidea belongs to Emydinae'
- 'Emys belongs to Emydinae'
- 'Emys marmorata is recombined as Clemmys marmorata'
- 'Emys muticus belongs to Emys' according to Cantor 1842
- 'Emys muticus is recombined as Clemmys mutica' according to Nakamura 1935
- 'Emys muticus is recombined as Mauremys mutica'
- 'Emys vulgaris belongs to Emys' according to Gray 1831
- 'Emys vulgaris japonica belongs to Emys vulgaris' according to Temminck and Schlegel 1835
- 'Emys vulgaris japonica is recombined as Emys japonica' according to Duméril and Duméril 1851
- 'Emys vulgaris japonica is recombined as Clemmys japonica' according to Nakamura 1935
- 'Emys vulgaris japonica is recombined as Mauremys japonica'
- 'Geoclemys belongs to Batagurinae'
- 'Geoemyda [misspelled as Geomyda] belongs to Batagurinae'
- 'Graptemys belongs to Emydinae'
- 'Kachuga belongs to Batagurinae'
- 'Malaclemys belongs to Emydinae'
- 'Mauremys belongs to Batagurinae'
- 'Ocadia belongs to Batagurinae'
- 'Pseudemys belongs to Emydinae'
- 'Rhinoclemmys belongs to Batagurinae'
- 'Sacalia belongs to Batagurinae'
- 'Siebenrockiella belongs to Batagurinae'
- 'Terrapene belongs to Emydinae'
- 'Testudo caspica belongs to Testudo' according to Gmelin 1774
- 'Testudo caspica is recombined as Emys caspica' according to Duméril and Bibron 1835
- 'Testudo caspica is recombined as Clemmys caspica' according to Wagler 1830
- 'Testudo caspica is recombined as Mauremys caspica'
- 'Testudo guttata is recombined as Clemmys guttata'
- 'Testudo insculpta is recombined as Clemmys insculpta'
- 'Testudo muhlenbergii is recombined as Clemmys muhlenbergi'