radiolaria - rads_cenozoic

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Plegmosphaera

Classification: rads_cenozoic -> Actinommidae -> Spongosphaeridae -> Plegmosphaera
Sister taxa: Plegmosphaera, Spongodrymus, Spongosphaera, Styptosphaera

Daughter taxa (time control age-window is: 0-800Ma)
				Plegmosphaera coelopila neptune records:
				Plegmosphaera entodictyon neptune records:
				Plegmosphaera exodictyon neptune records:
				Plegmosphaera lepticali neptune records:
				Plegmosphaera oblonga neptune records:
				Plegmosphaera pachypila neptune records:
				Plegmosphaera pachyplegma neptune records:
				Plegmosphaera sp. neptune records:

Taxonomy

Citation: Plegmosphaera Haeckel 1881

Taxonomic rank: genus

Basionym: Plegmosphaera

Catalog entries: Plegmosphaera

Original description: 6a. Tribus: Plegmosphaerida. Spongosphaeria ancantha, testae globosis spongiosae superficie externa laevi aut asperta sed non aculeata
A. testis medullaribus (testis globosis clathratis centralibus) in centro globi spongiosi aut una aut pluribus.
B. globo spongioso sine testis medullaribus.
BI. globo cavo centrali.

Translated description: 6a. Tribe: Plegmosphaerida. Spongosphaeria without spines, with the external surface of the spongy spherical test smooth or rough, but without spines.
A. With one or more medullary tests (latticed, spherical, central tests) in the center of the spongy sphere.
B. Spongy sphere without medullary shells.
BI. The sphere hollow in the middle. (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 ranges of the species in this database
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: Total of ranges 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: Spongosphaeridae

References:

Haeckel, E. (1882a). 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 O

Plegmosphaera compiled by the radiolaria@mikrotax project team viewed: 23-1-2025

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=205064 Go to Archive.is to create a permanent copy of this page - citation notes

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