radiolaria - rads_cenozoic - Cenosphaera cristata

Cenosphaera cristata


Classification: rads_cenozoic -> Actinommidae -> Ethmosphaeridae -> Cenosphaera -> Cenosphaera cristata
Sister taxa: C. aspera, C. coronata, C. coronataformis, C. cristata, C. eocenica, C. euganea, C. favosa, C. megachile, C. oceanica, C. perforata, C. sp.

Taxonomy

Citation: Cenosphaera cristata Haeckel 1887
Rank: species
Basionym: Cenosphaera cristata
Taxonomic discussion: (Haeckel) 1887, p. 66; Riedel, 1958, p.223, pl.1, figs. 1,2

Catalog entries: Cenosphaera cristata

Original description: Shell thick walled, rough. Pores irregular, roundish, surrounded by polygonal crested frames two to three times as broad as the bars, eight to twelve on the quadrant.

Diameter of the shell 160µm, pores 6-10µm, bars 3µm. Petr. 1975: Miocene individuals (Form B) have larger cortical shell (up to 150µm) and internal microspheres (polyhedra) very similar to Lonchosphaera. No external radial spines but some specimens have small by-spines. They occur in late Eocene-Oligocene.
Remarks on original description: Haeckel listed Cenosphaera cristata under the subgeneric name Cyrtidosphaera, but did not include the subgeneric name the species name.

Description


Morphology:


Size:

Biogeography and Palaeobiology


Similar species


Geographic distribution

Paleobiology

Phylogenetic relations

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:

Haeckel, E (1887a). 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 years 1873-1876. 18: 1-1803. gs O

Riedel, W. R. (1958). Radiolaria in Antarctic sediments. B.A.N.Z. Antarctic Research Expedition Reports, Series B (Zoology and Botany). 6(10): 217-255. gs


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Cenosphaera cristata compiled by the radiolaria@mikrotax project team viewed: 4-12-2022

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