Order Testudines Wagler, 1830 - turtles
   Suborder Cryptodira Cope, 1868
     Superfamily Testudinoidea Batsch, 1788
       Family Testudinidae Batsch, 1788 - tortoises
         Genus Testudo Linnaeus, 1758
           Testudo horsfieldii Gray, 1844 - Central Asian tortoise
             1 Testudo horsfieldii horsfieldii Gray, 1844 - Central Asian tortoise
             2 Testudo horsfieldii bogdanovi (Chkhikvadze, 2008) - Fergana Valley steppe tortoise
             3 Testudo horsfieldii kazachstanica (Chkhikvadze, 1988) - Kazakhstan steppe tortoise
             4 Testudo horsfieldii kuznetzovi (Chkhikvadze, Ataev, Shammakov & Zatoka, 2009) - Turkmenistan steppe tortoise
             5 Testudo horsfieldii rustamovi (Chkhikvadze, Amiranashvili & Ataev, 1990) - Kopet-Dag steppe tortoise