radiolaria - rads_cenozoic - Acrosphaera mercurius

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.

rad_org Acrosphaera mercurius, img1066.jpg
rad_org Acrosphaera mercurius, img1599.jpg
rad_org Acrosphaera mercurius, img1600.jpg
rad_org Acrosphaera mercurius, img1601.jpg
rad_org Acrosphaera mercurius, img1602.jpg
rad_org Acrosphaera mercurius, img1603.jpg

Taxonomy

Citation: Acrosphaera mercurius Lazarus 1992

taxonomic rank: species

Basionym: Acrosphaera mercurius

Synonyms:
1992 Acrosphaera mercurius - Lazarus pl. 1, figs. 11-16

From Suzuki Paleotax db:

1992 Acrosphaera (?) mercurius n. sp. Lazarus p. 794, pl. 1, figs. 11-16

Taxonomic discussion: Lazarus 1992 (ODP 120 SR) p 795 pl 1 figs 11-16

Catalog entries: Acrosphaera mercurius

Type images:

type image: A. 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:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
Taxon plotted: Acrosphaera mercurius, synonyms included - Acrosphaera mercurius;
See also space-time plot :: Samples map :: Parent: Acrosphaera

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

Acrosphaera mercurius compiled by the radiolaria@mikrotax project team viewed: 16-10-2024

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=202998 Go to Archive.is to create a permanent copy of this page - citation notes