radiolaria - rads_cenozoic - Pentactinosphaera radiolaria - rads_cenozoic - Pentactinosphaera

Pentactinosphaera


Classification: rads_cenozoic -> Actinommidae -> Actinommidae inc sed -> Pentactinosphaera
Sister taxa: << < Cromydruppocarpus, Cromyechinus, Cromyomma, Diploplegma, Drymosphaera, Drymyomma, Elatomma, Ellipsoxiphium, Gonosphaera, Heliaster, Heliosestilla, Hexacromyum, Hexalonche, Leptosphaera, Lychnosphaera, Pentactinosphaera, Rhizoplegma, Rhizosphaera, Sphaeropyle, Spongodictyon, Spongoplegma, Stauroxiphos, Stigmosphaera, Thecosphaerella, Xiphatractus
Daughter taxa (time control age-window is: 0-800Ma)
Pentactinosphaera hokurikuensis

neptune records:
Pentactinosphaera sp.

neptune records:

Taxonomy

Citation: Pentactinosphaera Nagata&Nishimura, in Nakaseko et al. 1983
Taxonomic rank: genus
Basionym: Pentactinosphaera
Taxonomic discussion:

Catalog entries: Pentactinosphaera

Original description: Entirely globular, thick-walled shell with the pentactine spicule at the apical end and a spine at the antapical one, these hexactine spicule inserted in the latticed shell. The structure of the spicule shows text-figure 1.
Remarks on original description: [Nomen nudum ? in Nakaseko, Nagata and Nishimura, 1982, p. 70] [Junior synonym of NANINA]


Description

Biogeography and Palaeobiology

Biostratigraphic distribution

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 Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

References:


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Pentactinosphaera compiled by the radiolaria@mikrotax project team viewed: 16-5-2025

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Short stable page link: https://mikrotax.org/bforams/index.php?id=204887 Go to Archive.is to create a permanent copy of this page - citation notes



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