Classification: rads_cenozoic -> Theoperidae -> Acropyramiidae -> Plectopyramis
Sister taxa: Artostrobus, Bathropyramis, Cornutella, Litharachnium, Peripyramis, Plectopyramis, Tricolocapsa
Daughter taxa (time control age-window is: 0-800Ma)
Plectopyramis dodecomma

neptune records: 1
Plectopyramis sp.

neptune records:


Citation: Plectopyramis Haeckel 1881
Rank: genus
Basionym: Plectopyramis

Catalog entries: Plectopyramis

Original description: 2c. Tribus: Sethophormida. Dycyrtida aperta multiradiata.
B.Sethophormida elevata (testa elevata, secundo articulo pyramidali, radiis 4 aut pluribus parum divergentibus, primo articulo plerumque parvo acuminato).
BI. secundo articulo laevi, non spinoso.
Ib. sec. art. dupliciter clathrato (reticulis tenuissimis in cancellis testae).

Translated description: 2c. Tribe: Sethophormida. Multiradiate, open Dyocyrtida.
B. Elevated Sethophormida (shell elevated, with pyramidal second segment, with 4 or more slightly divergent radii, with the first segment usually a little pointed).
BI. With second segment smooth, not spiny.
Ib. With second segment doubly latticed (with very delicate network within the meshes of the test). (Translated from Latin by E.M.R. and W.R.R.)]


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 Gelasian Stage (0% up, 2.6Ma, in Gelasian stage). Data source: Total of range of species in this database

Plot of occurrence data:


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


Plectopyramis compiled by the radiolaria@mikrotax project team viewed: 22-4-2021

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