Order Testudines Wagler, 1830 - turtles
   Suborder Cryptodira Cope, 1868
     Superfamily Testudinoidea Batsch, 1788
       Family Testudinidae Batsch, 1788 - tortoises
         Genus Aldabrachelys Loveridge & Williams, 1957
           Aldabrachelys gigantea (Schweigger, 1812) - Aldabra giant tortoise
             1 Aldabrachelys gigantea gigantea (Schweigger, 1812) - Aldabra giant tortoise
             2 Aldabrachelys gigantea arnoldi (Bour, 1982) - Arnold's giant tortoise
             3 ‡Aldabrachelys gigantea daudinii (Duméril & Bibron, 1835) - Daudin's giant tortoise
             4 Aldabrachelys gigantea hololissa (Günther, 1877) - Seychelles giant tortoise