Porodiscus


Classification: rads_cenozoic -> Spongodiscidae -> Spongodiscidae inc sed -> Porodiscus
Sister taxa: Amphirhopalum, Coccolarcus, Euchitonia, Ommatogramma, Plectodiscus, Porodiscus, Spongasteriscus, Spongobrachium, Stylospongia, Tholodiscus, Trigonastrum
Daughter taxa: (blue => in age window 0-800Ma)
Porodiscus concentricus

neptune records:
Porodiscus sp.

neptune records: 122

Taxonomy

Citation: Porodiscus Haeckel 1881
Rank: genus
Basionym: Porodiscus

Catalog entries: Porodiscus

Original description: 3a. Tribus: Trematodiscida. Porodiscida inermia vel anacantha, sine aculeis marginalibus et sine brachiis cameratis.
A. testa disciformi simplici sine ostio marginali coronato.
AI. disco sine zona porosa aut spongiosa.

Translated description: 3a. Tribe: Trematodiscida. Porodiscida which are unarmed or without spines, without marginal spines and without chambered arms.
A. With simple, discoidal test without a coronate marginal opening.
AI. With a disk without a porous or spongy zone. (Translated from Latin by E.M.R. and W.R.R.)]
Remarks on original description: [Frizzell [Frizzell and Middour,1951 p.24] designates Trematodiscus orbiculatus Haeckel in Haeckel, 1862 as the type species of Porodiscus; Campbell [1954, p.D89] designates Flustrella concentrica Ehrenberg, 1838. However, these seem inappropriate as neither species was among those first subsequently assigned to Porodiscus. Species first subsequently assigned to Porodiscus are: Porodiscus communis Rust, 1885b; P.nuesslinii Rust, 1885b; P.simplex Rust, 1885b.]

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 Aquitanian Stage (0% up, 23Ma, in Aquitanian 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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Porodiscus compiled by the radiolaria@mikrotax project team viewed: 23-11-2020

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Short stable page link: http://mikrotax.org/radiolaria/index.php?id=205111 Go to Archive.is to create a permanent copy of this page - citation notes



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