Opinions from V.-H. Reynoso and M. Montellano-Ballesteros 2004
- 'Bysmachelys is a subjective synonym of Gopherus'
- 'Bysmachelys canyonensis is recombined as Gopherus canyonensis'
- 'Gopherus belongs to Testudinidae'
- 'Gopherus (Oligopherus) is an invalid subgroup of Gopherus'
- 'Gopherus agassizii belongs to Gopherus' according to Cooper 1863
- 'Gopherus agassizii belongs to Gopherus'
- 'Gopherus auffenbergi is a subjective synonym of Xerobates berlandieri'
- 'Gopherus auffenbergi belongs to Gopherus' according to O. Mooser 1972
- 'Gopherus brattstromi is a subjective synonym of Gopherus mohavetus'
- 'Gopherus donlaloi belongs to Gopherus'
- 'Gopherus flavomarginatus belongs to Gopherus' according to J. M. Legler 1959
- 'Gopherus flavomarginatus belongs to Gopherus'
- 'Gopherus huecoensis belongs to Gopherus' according to W. S. Strain 1966
- 'Gopherus huecoensis is a subjective synonym of Gopherus flavomarginatus'
- 'Gopherus pargensis belongs to Gopherus' according to O. Mooser 1980
- 'Gopherus pargensis is a nomen vanum'
- 'Gopherus praecedens belongs to Gopherus' according to O. P. Hay 1916
- 'Gopherus praecedens is a subjective synonym of Gopherus polyphemus'
- 'Scaptochelys is a subjective synonym of Gopherus'
- 'Testudo atascosae is recombined as Gopherus atascosae' according to O. P. Hay 1902
- 'Gopherus atascosae is a subjective synonym of Gopherus polyphemus'
- 'Testudo brevisterna belongs to Testudo' according to F. G. Loomis 1909
- 'Testudo brevisterna is recombined as Gopherus brevisternus'
- 'Testudo edae belongs to Testudo' according to O. P. Hay 1907
- 'Gopherus edae is a nomen vanum'
- 'Gopherus hexagonatus is a nomen vanum'
- 'Gopherus hollandi is a nomen vanum'
- 'Gopherus laticaudatus is a nomen vanum'
- 'Testudo laticuneus is recombined as Gopherus laticuneus'
- 'Testudo milleri is a subjective synonym of Gopherus mohavetus'
- 'Testudo mohavense is recombined as Gopherus mohavetus'
- 'Testudo pansa is recombined as Gopherus pansus'
- 'Gopherus pertenius is a subjective synonym of Gopherus canyonensis'
- 'Testudo polyphemus is recombined as Gopherus polyphemus'
- 'Testudo praeextans is a subjective synonym of Gopherus laticuneus'
- 'Testudo quadratus belongs to Testudo' according to E. D. Cope 1884
- 'Testudo quadratus is a subjective synonym of Gopherus laticuneus'
- 'Testudo thomsoni is a subjective synonym of Gopherus laticuneus'
- 'Testudo vaga is recombined as Gopherus vagus'
- 'Xerobates is a subjective synonym of Gopherus'
- 'Xerobates berlandieri belongs to Xerobates' according to Agassiz 1857
- 'Xerobates berlandieri is recombined as Gopherus berlandieri'