Classification: rads_cenozoic -> Plagiacanthidae -> Lophophaenidae -> Arachnocorallium
Sister taxa: Amphiplecta, Antarctissa, Arachnocalpis, Arachnocorallium, Arachnocorys, Archiperidium, Archipilium, Ceratocyrtis, Cryptogyrus, Dictyocephalus, Dictyocryphalus, Entepipedus, Gondwanaria, Lipmanella, Lithocampana, Lithomelissa, Lophophaena, Marimoum, Mitrocalpis, Periarachnium, Peromelissa, Phormacantha, P. inc sed castanoides, Plectacantha, Pseudocubus, Pseudodictyophimus, Pteroscenium, Steganocubus, Tripodocyrtis, Trisulcus
Daughter taxa (time control age-window is: 0-800Ma)
Arachnocorallium calvata

neptune records:
Arachnocorallium hexaptera

neptune records:
Arachnocorallium sp.

neptune records: 92


Citation: Arachnocorallium Haeckel 1887
Rank: genus
Basionym: Arachnocorallium
Type species: Arachnocorallium hexaptera Haeckel 1887
Taxonomic discussion: Type species designated by Campbell 1954. Arachnocorallium is given as a junior synonym of Arachnocorys in Nori's database, tho the reason is unclear - none of the papers he cites has made this synonymy. -dbl

Catalog entries: Arachnocorallium

Original description: Thorax with six divergent ribs or radial beams (three primary or perradial, alternating with three secondary, or interradial).
Remarks on original description: Although described as a sub-genus by Haeckel, Arachnocorallium has been used as a genus in the description of the species listed here.  Difference between this subgenus and Arachnocoronium is the latter has 3 primary and 6 secondary divergent ribs, according to Haeckel 1887 p. 1266.-dbl


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): at base of Gelasian Stage (0% up, 2.6Ma, in Gelasian stage). Data source: Total of range of species in this database

Plot of occurrence data:


Haeckel, E (1887). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the year 1873-1876, Zoology. 18: 1-1803. gs


Arachnocorallium compiled by the radiolaria@mikrotax project team viewed: 23-4-2021

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