radiolaria - rads_cenozoic - Stephaniidae radiolaria - rads_cenozoic - Stephaniidae


Classification: rads_cenozoic -> Trissocyclidae -> Stephaniidae
Sister taxa: Acanthodesmiidae, Androspryris, Stephaniidae, Triospyridae, Trissocyclidae (ss), Trissocyclidae inc sed
Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa

neptune records:
Neosemantis bjoerklundi
Neosemantis cladophora
Neosemantis distephanus
Neosemantis hofferti
Neosemantis sp.


neptune records: 255
Zygocircus buetschli
Zygocircus cimelium
Zygocircus piscicaudatus
Zygocircus productus
Zygocircus sp.


Rank: family (new classif)
Taxonomic discussion: This family is part of the revised classification system being developed by Prof. Suzuki and colleagues

Catalog entries: Stephaniidae [no catalog entry yet]


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 Danian Stage (0% up, 66Ma, in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:



Stephaniidae compiled by the radiolaria@mikrotax project team viewed: 21-3-2023

Taxon Search:
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AphiaID: not found
Short stable page link: Go to to create a permanent copy of this page - citation notes

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