Gabbro, [198]

Galena, [237]

Galena-Trenton, [184], [187]

Lower, [211]

Gales, [43], [56], [60]-[64], [70], [103]-[105]

Gama, Vasco de, [72]

Game, [128], [157]

Ganoid scales, [219]

Garnet, [192]-[198], [201], [203], [230], [231]

Gasteropods, [216]