Cheloniinae is a subfamily of the sea turtle family Cheloniidae. Its parent superfamily is Chelonioidea. The members of the subfamily, and genera that make it up, are: * Genus Chelonia * Chelonia mydas (green sea turtle) * Genus Eretmochelys * Eretmochelys imbricata (hawksbill sea turtle) * Genus Natator * Natator depressus (flatback sea turtle) (Previously in Chelonia)