radiolaria - rads_cenozoic - Lithapium radiolaria - rads_cenozoic - Lithapium

Lithapium


Classification: rads_cenozoic -> Theoperidae -> Theoperidae inc sed -> Lithapium
Sister taxa: Anthocyrtoma, Aphetocyrtis, Archicorys, Cassideus, Conarachnium, Cyrtolagena, D. middouri, Diplocyclas, Eurystomoskevos, Lithapium, Lithomitrissa, Lophoconus, Lophocorys, Phrenocodon, Sethochytris, Sethoconus, Sethocyrtis, Stichocampe, Theocorys, Udan
Daughter taxa (time control age-window is: 0-800Ma)
Lithapium anoectum

neptune records: 138
Lithapium mitra

neptune records: 24
Lithapium plegmacantha

neptune records: 92
Lithapium sp.

neptune records: 1

Taxonomy

Citation: Lithapium Haeckel 1887
Taxonomic rank: genus
Basionym: Lithapium

Catalog entries: Lithapium

Original description: Ellipsida with simple ellipsoidal or pear-shaped shell; with a single spine only situated at one pole of the main axis.
Remarks on original description: The use of Lithapium by Riedel and Sanfilippo for a group of related theoperid species is clearly incorrect. Lithapium refers to a stylosphaerid, as noted also in Suzuki et al. 2021 - dl

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Paleogene Period (100% up, 23Ma, in Aquitanian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Total of ranges of species in this database

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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Lithapium compiled by the radiolaria@mikrotax project team viewed: 6-10-2026

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=204458 Go to Archive.is to create a permanent copy of this page - citation notes



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