Amphymenium


Classification: rads_cenozoic -> Litheliidae -> Litheliidae inc sed -> Amphymenium
Sister taxa: Amphymenium, Lithocarpium
Daughter taxa (time control age-window is: 0-800Ma)
Amphymenium amphistylium

neptune records: 24
Amphymenium challengerae

neptune records: 29
Amphymenium splendiarmatum

neptune records: 45
Amphymenium sp.

neptune records: 7

Taxonomy

Citation: Amphymenium Haeckel 1881
Rank: genus
Basionym: Amphymenium
Taxonomic discussion: Has been assigned to Spongodiscidae, here assigned to Litheliidae inc sed following new classification being developed by Suzuki & co-workers

Catalog entries: Amphymenium

Original description: 3c. Tribus: Euchitonida. Porodiscida brachiata, brachiis cameratis in plano aequatoriali sitis et e margine disci radiantibus (saepe aculeis brachiorum terminalibus, saepe brachiis patagio vel vimento camerato conjunctis).
A. brachiis duobus oppositis.
AI. brachiis simplicibus.
Ib. cum patagio.

Translated description: 3c. Tribe: Euchitonida. Porodiscida with arms, the chambered arms being situated in the equatorial plane and radiating from the margin of the disk (often with terminal spines on the arms, and often with the arms Joined by a patagium or chambered web).
A. With two opposite arms.
AI. With the arms simple.
Ib. With patagium. (Translated from Latin by E.M.R. and W.R.R.)]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Piacenzian Stage (100% up, 2.6Ma, in Piacenzian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Danian Stage (0% up, 66Ma, in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Haeckel, E. (1882). 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


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Amphymenium compiled by the radiolaria@mikrotax project team viewed: 17-6-2021

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=203111 Go to Archive.is to create a permanent copy of this page - citation notes



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