Order Scorpiones Koch, 1837 - scorpions
   Family Chactidae Pocock, 1893
     01 Genus Auyantepuia González-Sponga, 1978
     02 Genus Brotheas Koch, 1837
     03 Genus Broteochactas Pocock, 1893
     04 Genus Cayooca González-Sponga, 1996 see Genus Broteochactas Pocock, 1893
     05 Genus Chactas Gervais, 1844
     06 Genus Chactopsis Kraepelin, 1912
     07 Genus Guyanochactas Lourenço, 1998
     08 Genus Hadrurochactas Pocock, 1893
     09 Genus Nullibrotheas Williams, 1974
     10 Genus Teuthraustes Simon, 1878
     11 Genus Vachoniochactas González-Sponga, 1978