radiolaria - rads_cenozoic

Amphirhopalum

Classification: rads_cenozoic -> Spongodiscidae -> Spongodiscidae inc sed -> Amphirhopalum
Sister taxa: Amphirhopalum, Coccolarcus, Euchitonia, Ommatogramma, Plectodiscus, Porodiscus, Spongasteriscus, Spongobrachium, Stylospongia, Tholodiscus, Trigonastrum

Daughter taxa (time control age-window is: 0-800Ma)
				Amphirhopalum straussii neptune records:
				Amphirhopalum virchowii neptune records: 29
				Amphirhopalum ypsilon neptune records: 797
				Amphirhopalum sp. neptune records: 38

Taxonomy

Citation: Amphirhopalum Haeckel 1881

Rank: genus

Basionym: Amphirhopalum

Catalog entries: Amphirhopalum

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.
AII. brachiis dichotomis aut ramosis.
IIa. sine 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.
AII. With the arms dichotomous or branched.
IIa. Without patagium. (Translated from Latin by E.M.R. and W.R.R.)]
Remarks on original description: See Amphirrhopalum [RAMPW]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): at base of Aquitanian Stage (0% up, 23Ma, in Aquitanian stage). Data source: Total of range of species in this database

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
Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Spongodiscidae inc sed

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

Amphirhopalum compiled by the radiolaria@mikrotax project team viewed: 28-2-2021

Taxon Search:

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=203088 Go to Archive.is to create a permanent copy of this page - citation notes

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