radiolaria - rads_cenozoic - Plegmosphaera leptoplegma radiolaria - rads_cenozoic - Plegmosphaera leptoplegma

Plegmosphaera leptoplegma


Classification: rads_cenozoic -> Actinommidae -> Spongosphaeridae -> Plegmosphaera -> Plegmosphaera leptoplegma
Sister taxa: P. coelopila, P. entodictyon, P. exodictyon, P. lepticali, P. leptoplegma, P. oblonga, P. pachypila, P. pachyplegma, P. sp.

Taxonomy

Citation: Plegmosphaera leptoplegma Haeckel 1887
Taxonomic rank: species
Basionym: Plegmosphaera leptoplegma Haeckel 1887

Catalog entries: Plegmosphaera leptoplegma

Original description: Radius of the spherical shell-cavity half as great as the thickness of the loose spongy shell-wall. Inside and outside of the wall rough spongy, not closed by a lattice-plate. Meshes ten to twenty times as broad as the bars.

Diameter of the shell 300µm, of its cavity 88µm.
Remarks on original description: Haeckel listed Plegmosphaera leptoplegma under the subgeneric name Plegmosphaerusa, but did not include the subgeneric name in the species name.

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: Suzuki catalog
First occurrence (base): within Pleistocene Epoch (0.01-2.59Ma, base in Gelasian stage). Data source: Suzuki catalog

Plot of occurrence data:

References:

Haeckel, E (1887). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873-1876. 18: 1-1803. gs O


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Plegmosphaera leptoplegma compiled by the radiolaria@mikrotax project team viewed: 10-10-2026

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=206415 Go to Archive.is to create a permanent copy of this page - citation notes



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