radiolaria - rads_cenozoic - Acanthosphaera tenuis radiolaria - rads_cenozoic - Acanthosphaera tenuis

Acanthosphaera tenuis


Classification: rads_cenozoic -> Actinommidae -> Actinommidae (ss) -> Acanthosphaera -> Acanthosphaera tenuis
Sister taxa: A. actinota, A. bernardi, A. castanea, A. dodecastyla, A. macropora, A. pinchuda, A. tenuis, A. sp.

Taxonomy

Citation: Acanthosphaera tenuis Haeckel 1887
taxonomic rank: species
Basionym: Acanthosphaera tenuis
Synonyms:

From Suzuki Paleotax db:

1887 Acanthosphaera (Rhaphidococcus) tenuis n. sp. Haeckel p. 210
1991 Acanthosphaera tunis Haeckel [sic] Takahashi p. 66, pl. 8, figs. 2, 3

Catalog entries: Acanthosphaera tenuis

Original description: Shell very thin walled, about twenty times as broad as one pore. Meshes subregular, hexagonal, with thread-like bars; twelve to fourteen on the radius. At each nodal-point arises a bristle-shaped radial spine, about as long as the radius.

Diameter of the shell 300 to 35µm, pores 15 to 18µm, bars below 1µm; length of the spines 120 to 160µm.
Remarks on original description: There was no illustration of this species in Haeckel (1887)
Haeckel listed Acanthosphaera tenuis under the subgeneric name Rhaphidococcus, but did not include the subgeneric name in the species name.

Stratigraphic information for LM 21 from Riedel, 1959, p.287.

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: Lazarus et al. 2015 - "R age group"
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: Lazarus et al. 2015 - "R age group"

Plot of occurrence data:

References:


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Acanthosphaera tenuis compiled by the radiolaria@mikrotax project team viewed: 12-10-2024

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=202974 Go to Archive.is to create a permanent copy of this page - citation notes



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