radiolaria - rads_cenozoic - Excentrosphaerella <title>radiolaria - rads_cenozoic - Excentrosphaerella


Classification: rads_cenozoic -> Heliodiscidae -> Excentrosphaerella
Sister taxa: Astrophacus, Excentrococcus, Excentrosphaerella, Heliodiscus
Daughter taxa (time control age-window is: 0-800Ma)
Excentrosphaerella sphaeroconcha

neptune records: 3
Excentrosphaerella sp.

neptune records:


Citation: Excentrosphaerella
Rank: genus
Basionym: Excentrosphaerella

Catalog entries: Excentrosphaerella

Original description: Heliodiscids with double medullary shell of Heliodiscus type surrounded by two concentric spherical or ellipsoidal shells connected by numerous radial beams. The genus seems to be related to Excentrodiscus from which it is distinguished by the additional cortical shell.




Biogeography and Palaeobiology

Similar species

Geographic distribution


Phylogenetic relations

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: Total of range of species in this database
First occurrence (base): at top of No known fossil record modern (100% up, 0Ma, in "Holocene" stage). Data source: Total of range of species in this database

Plot of occurrence data:



Excentrosphaerella compiled by the radiolaria@mikrotax project team viewed: 7-2-2023

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