Cannartidium mastophorum, from here.

Belongs within: Stauraxonaria.

The Sponguracea are a group of radiolarians characterised by a skeleton with densely spaced concentric structures and a tiny microsphere in the central part.

<==Sponguracea [Ellipsida, Ellipsidiicae, Prunoidea, Spongurida]LT61
    |  i. s.: Ellipsidium Haeckel 1887AA05
    |--Cyphantella Haeckel 1887 [=Cyphanta Haeckel 1887 non Walker 1865; Cyphantellidae, Cyphantidae]LT61
    |    |--*C. (Cyphantella) colpodes (Haeckel 1887) [=*Cyphanta colpodes]LT61
    |    `--C. (Cyphantissa Haeckel 1887)LT61
    |    |--Cannartiscus Haeckel 1887H04, AA05
    |    |    `--C. amphiconiscusH04
    |    |--Cyphinus Haeckel 1881AA05
    |    |    `--C. amphilophusH04
    |    `--Cannartidium Haeckel 1887H04, AA05
    |         |--C. mammiferumH04
    |         `--C. mastophorumH04
    |    |--Panartus Haeckel 1887AA05
    |    |    `--P. diploconusH04
    |    |--Peripanartus Haeckel 1887H04, AA05
    |    |    `--P. amphiconusH04
    |    |--Panicium Haeckel 1887H04, AA05
    |    |    `--P. coronatumH04
    |    `--Peripanicium Haeckel 1887H04, AA05
    |         `--P. amphicoronaH04
         |--Prunobrachium Kozlova 1966AA05
         |--Spongurus Haeckel 1862AA05
         |--Patellula Kozlova 1972AA05
         |    `--P. heliosAA05
         |--Spongocore Haeckel 1887AA05
         |    `--S. puella Haeckel 1887BC98
         `--Amphibrachella Haeckel 1887LT61 (see below for synonymy)
              |  i. s.: Amphibrachium’ hastatumBL79
              |--*A. (Amphibrachella) diminuta (Haeckel 1887) [=*Amphibrachium diminutum]LT61
              |--A. (Amphibrachidium Haeckel 1887)LT61
              `--A. (Amphibrachura Haeckel 1887)LT61

Amphibrachella Haeckel 1887LT61 [=Amphibrachium Haeckel 1881 non Schulze 1880AA05; incl. Spongolena Haeckel 1887AA05]

*Type species of generic name indicated


[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.

[BL79] Basov, V. A., B. G. Lopatin, I. S. Gramberg, A. I. Danjushevskaya, V. Ya. Kaban’kov, V. M. Lazurkin & D. K. Patrunov. 1979. Lower Cretaceous lithostratigraphy near Galicia Bank. Initial Reports of the Deep Sea Drilling Project 47: 683–717.

[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.

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

[LT61] Loeblich, A. R., Jr & H. Tappan. 1961. Remarks on the systematics of the Sarkodina (Protozoa), renamed homonyms and new and validated genera. Proceedings of the Biological Society of Washington 74: 213–234.

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