• Gambelia copeii 

    Mahrdt, Clark R.; McGuire, Jimmy A.; Beaman, Kent R. (Society for the Study of Amphibians and Reptiles, 2010)
  • Gambelia sila 

    Jennings, Mark R. (Society for the Study of Amphibians and Reptiles, 1995)
  • Gastrophryne 

    Nelson, Craig E. (Society for the Study of Amphibians and Reptiles, 1973)
  • Gastrophryne carolinensis 

    Nelson, Craig E. (Society for the Study of Amphibians and Reptiles, 1972)
  • Gastrophryne elegans 

    Nelson, Craig E. (Society for the Study of Amphibians and Reptiles, 1972)
  • Gastrophryne olivacea 

    Nelson, Craig E. (Society for the Study of Amphibians and Reptiles, 1972)
  • Gastrophryne pictiventris 

    Nelson, Craig E. (Society for the Study of Amphibians and Reptiles, 1973)
  • Gastrophryne usta 

    Nelson, Craig E. (Society for the Study of Amphibians and Reptiles, 1972)
  • Geochelone carbonaria 

    Ernst, Carl H.; Leuteritz, Thomas E. J. (Society for the Study of Amphibians and Reptiles, 1999)
  • Geochelone chilensis 

    Ernst, Carl H. (Society for the Study of Amphibians and Reptiles, 1998)
  • Geochelone denticulata 

    Ernst, Carl H.; Leuteritz, Thomas E. J. (Society for the Study of Amphibians and Reptiles, 1999)
  • Geogras, G. redimitus 

    Wilson, Larry David (Society for the Study of Amphibians and Reptiles, 1988)
  • Geophis dunni 

    Townsend, Josiah H. (Society for the Study of Amphibians and Reptiles, 2006)
  • Geophis fulvoguttatus 

    Townsend, Josiah H.; Wilson, Larry David (Society for the Study of Amphibians and Reptiles, 2006)
  • Gerrhonotus cedrosensis 

    Lais, P. Mike (Society for the Study of Amphibians and Reptiles, 1976)
  • Gerrhonotus coeruleus 

    Lais, P. Mike (Society for the Study of Amphibians and Reptiles, 1976)
  • Gerrhonotus kingii 

    Webb, Robert G. (American Society of Ichthyologists and Herpetologists, 1970)
  • Gerrhonotus multicarinatus 

    Lais, P. Mike (Society for the Study of Amphibians and Reptiles, 1976)
  • Gerrhonotus paucicarinatus 

    Lais, P. Mike (Society for the Study of Amphibians and Reptiles, 1976)
  • Gonotodes daudini 

    John, Rebecca R.; Rivera Rodríguez, Mel Jose; Bentz, Ehren J.; Henderson, Robert W.; Powell, Robert (Society for the Study of Amphibians and Reptiles, 2012)