radiolaria - rads_cenozoic - Acrosphaera mercurius radiolaria - rads_cenozoic - Acrosphaera mercurius

Acrosphaera mercurius


Classification: rads_cenozoic -> Collosphaeridae -> Acrosphaera -> Acrosphaera mercurius
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 mercurius Lazarus 1992
taxonomic rank: species
Basionym: Acrosphaera mercurius
Synonyms:
1992 Acrosphaera mercurius - Lazarus pl. 1, figs. 11-16
Taxonomic discussion: Lazarus 1992 (ODP 120 SR) p 795 pl 1 figs 11-16

Catalog entries: Acrosphaera mercurius

Original description: Medium to small spherical shell covered with numerous small, round, irregular size pores, which are distributed irregularly, often overlapping, and thus form small arcuate cusps that partially subdivide the enlarged double pore. Edges of pores rounded, not rimmed or funnelled; surface of shell rough, with low, sharp arcuate ridges and crests, which do not form a regular form pattern. No spines. Shell wall of moderate thickness.

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Neogene Period (2.59-23.03Ma, top in Piacenzian stage). Data source: Lazarus et al. 2015 - "N age group"
First occurrence (base): within Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Lazarus et al. 2015 - "N age group"

Plot of occurrence data:

References:

Lazarus, D. (1992). Antarctic Neogene radiolarians from the Kerguelen Plateau, Legs 119 and 120. In, Wise, S. W. Jr. , Schlich, R. et al. (ed.) . Proceedings of the Ocean Drilling Program, Scientific Results . 120: 785-809. gs


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

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