radiolaria - rads_cenozoic - Amphistylus radiolaria - rads_cenozoic - Amphistylus

Amphistylus


Classification: rads_cenozoic -> Actinommidae -> Stylosphaeridae -> Amphistylus
Sister taxa: Amphistylus, Druppatractus, Ellipsoxiphus, Entapium, Protoxiphotractus, Sphaerostylus, Spongatractus, Stylacontarium, Stylatractus, Stylosphaera
Daughter taxa (time control age-window is: 0-800Ma)
Amphistylus angelinus

neptune records: 1299
Amphistylus sp.

neptune records: 17

Taxonomy

Citation: Amphistylus Haeckel 1881
Taxonomic rank: genus
Basionym: Amphistylus

Catalog entries: Amphistylus

Original description: 3b. Tribus: Amphistylidae. Triosphaeria dissacantha (aculeis duobus oppositis, in uno axi sitis).
B. aculeis ambobus diversis.

Translated description: 3b. Tribe: Amphistylida. Triosphaeria with two spines (the two spines opposite, situated in one axis).
B. With the two spines different. (Translated from Latin by E.M.R. and W.R.R.)]
Remarks on original description: [Synonymized with Amphisphaera by Petrushevskaya, 1975c, p.570]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Neogene Period (100% up, 2.6Ma, in Piacenzian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

References:

Haeckel, E. (1882a). Entwurf eines Radiolarien-Systems auf Grund von Studien der Challenger-Radiolarien [Basis for a radiolarian classification from the study of Radiolaria of the Challenger collection]. Jenaische Zeitschrift für Naturwissenschaft. 15: 418-472. gs O


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Amphistylus compiled by the radiolaria@mikrotax project team viewed: 8-7-2025

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=203103 Go to Archive.is to create a permanent copy of this page - citation notes



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