radiolaria - rads_cenozoic - Collosphaera confossa

Collosphaera confossa

Classification: rads_cenozoic -> Collosphaeridae -> Collosphaera -> Collosphaera confossa
Sister taxa: C. armata, C. confossa, C. huxleyi, C. macropora, C. orthoconus, C. polygona, C. pyloma, C. tuberosa, C. sp.


Citation: Collosphaera confossa Takahashi 1991
Rank: species
Basionym: Collosphaera confossa

Catalog entries: Collosphaera confossa

Original description: Shell single lattice, thin walled, smooth, spherical to slightly crumpled, with numerous circular to subcircular pores of variable size. Width of the interporous septa is about the same as average pore diameter. Number of pores is about 23 on the half perimeter of the shell and twice as many as that of C. huxleyi.

Shell diameter: 125 225 mm. Distinguishing characters (rw): This taxon is different from C. huxleyi in shell diameter variability, number and size of pores.




Biogeography and Palaeobiology

Similar species

Geographic distribution


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:



Collosphaera confossa compiled by the radiolaria@mikrotax project team viewed: 5-12-2022

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