radiolaria - rads_cenozoic - Axoprunum stauraxonium radiolaria - rads_cenozoic - Axoprunum stauraxonium

Axoprunum stauraxonium


Classification: rads_cenozoic -> Actinommidae -> Saturnalidae -> Axoprunum -> Axoprunum stauraxonium
Sister taxa: A. euterpe, A. liostylum, A. losbanosensis, A. monostylum, A. pierinae, A. stauraxonium, A. sp.

Taxonomy

Citation: Axoprunum stauraxonium Haeckel 1887
taxonomic rank: species
Basionym: Axoprunum stauraxonium
Synonyms:
1887 Axoprunum stauraxonium - Haeckel p. 298, pl. 48, fig. 4
Taxonomic discussion: Haeckel, 1887, p.298, pl.48, fig.4; Hull, 1993 (ODP 136 SR), p 11, pl 1 fig 20

Catalog entries: Axoprunum stauraxonium

Original description: Shell ellipsoidal, one and one-third times as long as broad, with smooth surface. Network regular, with circular meshes four times as broad as the bars. Two polar spines three-sided pyramidal, half as long as the shell, as thick at the base as a single mesh. Four inner radial beams (lying, two in the major and two in the minor axis of the ellipsoid) very thin, at the central free ends knob-like, thickened. The distance between two opposite beams equals one-third of the minor axis, and indicates probably the diameter of the lost spherical medullary shell. (Three perfect and complete specimens of the same size and shape were observed.)

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:

Haeckel, E (1887). 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

Hull, D. M. (1993). Quaternary, Eocene, and Cretaceous Radiolarians from the Hawaiian Arch, Northern Equatorial Pacific Ocean. Proceedings of the Ocean Drilling Program, Scientific Results. 136: 3-25. gs


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Axoprunum stauraxonium compiled by the radiolaria@mikrotax project team viewed: 16-6-2024

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