radiolaria - rads_cenozoic - Conarachnium facetum

Conarachnium facetum

Classification: rads_cenozoic -> Theoperidae -> Theoperidae inc sed -> Conarachnium -> Conarachnium facetum
Sister taxa: C. facetum, C. parabolicum, C. sp.


Citation: Conarachnium facetum (Haeckel) Takahashi 1991
Rank: species
Basionym: Sethoconus facetus

Catalog entries: Sethoconus facetus

Original description: Cephalis small, hemispherical, with distinct collar septum, the same network as the thorax, and numerous bristle-shaped horns of the same length. Thorax wide, conical, about as long as broad, with slightly convex outlines; its network extremely delicate, with very small and numerous, regular, hexagonal pores, disposed in numerous divergent, longitudinal series, which are convoluted somewhat spirally around the shell axis. Surface covered with thin, scattered, bristle-shaped spines, about as long as the cephalis.

Cephalis 0.02 diameter, thorax 0.2 long, 0.22 broad.
Remarks on original description: Haeckel listed Sethoconus facetus under the subgeneric name Phlebarachium, but did not include the subgeneric name in the species name.




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:



Conarachnium facetum compiled by the radiolaria@mikrotax project team viewed: 4-10-2022

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