Sethoperinae

Cladoscenium limbatum, from Radiolaria.org.

Belongs within: Archipilioidea.

The Sethoperinae are a group of radiolarians with a porous or cellular test containing one to three segments, known from the Early Jurassic (Pliensbachian) to the present (Afanasieva et al. 2005).

<==Sethoperinae AA05
    |--Arachnopilium Haeckel 1881 AA05
    |--Artopera Haeckel 1881 AA05
    |--Clathrocorona Haeckel 1881 AA05
    |--Clathrocorys Haeckel 1881 AA05
    |--Clathrolychnus Haeckel 1881 AA05
    |--Dictyocodoma Haeckel 1887 AA05
    |--Periplecta Haeckel 1881 AA05
    |--Plectagonidium Cachon & Cachon 1969 AA05
    |--Tripocyrtis Haeckel 1887 AA05
    |--Sethopera Haeckel 1881 AA05
    |    `--S. tricostata AA05
    |--Callimitra Haeckel 1881 AA05
    |    `--C. agnesae AA05
    |--Dictyocodon Haeckel 1881 AA05
    |    `--D. annasethe H04
    |--Pteropilium Haeckel 1881 AA05
    |    `--P. reticulatum (Popofsky 1913) DZ03
    `--Cladoscenium Haeckel 1881 AA05
         |--C. limbatum Jørgensen 1905 BC98
         `--C. tricolpium (Haeckel 1881) BC98

*Type species of generic name indicated

References

[AA05] Afanasieva, M. S., E. O. Amon, Y. V. Agarkov & D. S. Boltovskoy. 2005. Radiolarians in the geological record. Paleontological Journal 39 (Suppl. 3): S135–S392.

[BC98] Bjørklund, K. R., G. Cortese, N. Swanberg & H. J. Schrader. 1998. Radiolarian faunal provinces in surface sediments of the Greenland, Iceland and Norwegian (GIN) Seas. Marine Micropalaeontology 35: 105–140.

[DZ03] Dumitrica, P., & P. Zügel. 2003. Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany). Geodiversitas 25 (1): 5–72.

[H04] Haeckel, E. 1899–1904. Kunstformen der Natur. Bibliographisches Institut: Leipzig und Wien.

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