Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
| Thyrsocyrtis bromia neptune records: 401 | ||||
| Thyrsocyrtis clausa neptune records: 17 | ||||
| Thyrsocyrtis hirsuta neptune records: 123 | ||||
| Thyrsocyrtis krooni neptune records: 241 | ||||
| Thyrsocyrtis lochites neptune records: 366 | ||||
| Thyrsocyrtis orthotenes neptune records: 267 | ||||
| Thyrsocyrtis pinguisicoides neptune records: 83 | ||||
| Thyrsocyrtis rhizodon neptune records: 550 | ||||
| Thyrsocyrtis robusta neptune records: 38 | ||||
| Thyrsocyrtis schomburgkii neptune records: | ||||
| Thyrsocyrtis tarsipes neptune records: 24 | ||||
| Thyrsocyrtis tensa neptune records: 70 | ||||
| Thyrsocyrtis tetracantha neptune records: 422 | ||||
| Thyrsocyrtis triacantha neptune records: 807 | ||||
| Thyrsocyrtis sp. neptune records: 250 | ||||
Catalog entries: Thyrsocyrtis
Original description: Testa duabus pluibusve strictures articulata. Corporis utroque fine arctato. Appendicibus postremis mediisque nullis. Frontis aculeo spinuloso.
Translated description: Test segmented by two or more strictures. Body narrowed at both ends. With no posterior or median appendages. Frontal spine spinulose. (Translated from Latin by E.M.R. and W.R.R.)]
Geological Range:
Last occurrence (top): at top of Neogene Period (100% up, 2.6Ma, in Piacenzian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
Ehrenberg, C. G. (1847). Uber die mikroskopischen kieselschaligen Polycystinen als machtige Gebirgsmasse von Barbados und uber das Verhaltniss der aus mehr als 300 neuen Arten bestehenden ganz eigenthumlichen Formengruppe jener Felsmasse zu den jetzt lebenden Tieren und zur. Bericht uber die zu Bekanntmachung geeigneten Verhandlungen der Koniglichen Preussische Akademie der Wissenschaften zu Berlin. 1847: 41-60. gs References:

![]()
![]() |
Thyrsocyrtis compiled by the radiolaria@mikrotax project team viewed: 25-1-2026
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=205881 Go to Archive.is to create a permanent copy of this page - citation notes |