Plectopyramis


Classification: rads_cenozoic -> Theoperidae -> Acropyramiidae -> Plectopyramis
Sister taxa: Artostrobus, Bathropyramis, Cornutella, Litharachnium, Peripyramis, Plectopyramis, Tricolocapsa,
Daughter taxa: (blue => in age window 0-800Ma)

neptune records: 1

neptune records:

Taxonomy

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.)]

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 Gelasian Stage (0% up, 2.6Ma, in Gelasian 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 fur Naturwissenschaft. 15: 418-472. gs :: ::


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Plectopyramis compiled by the radiolaria@mikrotax project team viewed: 2-6-2020

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Short stable page link: http://mikrotax.org/radiolaria/index.php?id=205061 Go to Archive.is to create a permanent copy of this page - citation notes



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