radiolaria - rads_cenozoic - Acrosphaera collina radiolaria - rads_cenozoic - Acrosphaera collina

Acrosphaera collina


Classification: rads_cenozoic -> Collosphaeridae -> Acrosphaera -> Acrosphaera collina
Sister taxa: A. arktios, A. australis, A. collina, A. cyrtodon, A. flammabunda, A. labrata, A. lappacea, A. mercurius, A. murrayana, A. pseudarktios, A. setosa, A. spinosa, A. transformata, A. trepanata, A. sp.

Taxonomy

Citation: Acrosphaera collina Haeckel 1887
taxonomic rank: species
Basionym: Acrosphaera collina

Catalog entries: Acrosphaera collina

Original description: Shell quite irregular, polyhedrical, hilly, with a variable number (eight to sixteen) of large conical hill-like prominences; every cone or hill about as high as broad, perforated by the same pores as the shell, on its top bearing a larger irregular roundish pore, and on its edge one single bristle-like spine, not larger than the diameter of this pore, obliquely inserted. In the half meridian of the shell twenty to thirty irregular roundish pores of very different size, one to six times as broad as the bars. A very characteristic species, closely resembling the following Odontosphæra.

Diameter of the shell 15O to 250µm, of the pores 5 to 20µm; length of the spines 10 to 20µm, height of the hills from which they rise 30 to 40µm.
Remarks on original description: = Solenosphaera collina in Hilmers, 1906

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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Acrosphaera collina compiled by the radiolaria@mikrotax project team viewed: 28-2-2024

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=202992 Go to Archive.is to create a permanent copy of this page - citation notes



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