Classification of the genus Thyrsocyrtis
G. †Thyrsocyrtis Ehrenberg 1847
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Subg. †Thyrsocyrtis (Pentalacorys) Haeckel 1882
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†Thyrsocyrtis (Pentalacorys) tensa Foreman 1973
†Thyrsocyrtis (Pentalacorys) triacantha Ehrenberg 1873
Subg. †Thyrsocyrtis (Thyrsocyrtis) Ehrenberg 1847
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†Thyrsocyrtis (Thyrsocyrtis) hirsuta Krasheninnikov 1960
†Thyrsocyrtis (Thyrsocyrtis) rhizodon Ehrenberg 1873
†Thyrsocyrtis (Thyrsocyrtis) robusta Riedel and Sanfilippo 1970
†Thyrsocyrtis (Thyrsocyrtis) tarsipes Foreman 1973