[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847
     Family Theoperidae Haeckel, 1881
       Genus †Thyrsocyrtis Ehrenberg, 1847
         01 †Thyrsocyrtis bromia Ehrenberg, 1873
         02 †Thyrsocyrtis clausa Chen, 1975
         03 †Thyrsocyrtis hirsuta (Krasheninnikov, 1960)
         04 †Thyrsocyrtis lochites Sanfilippo, 1982
         05 †Thyrsocyrtis rhizodon Ehrenberg, 1873
         06 †Thyrsocyrtis robusta Riedel & Sanfilippo, 1970
         07 †Thyrsocyrtis schomburgkii (Ehrenberg, 1873)
         08 †Thyrsocyrtis tarsipes Foreman, 1973
         09 †Thyrsocyrtis tensa Foreman, 1973
         10 †Thyrsocyrtis tetracantha (Ehrenberg, 1873)
         11 †Thyrsocyrtis triacantha (Ehrenberg, 1873)