radiolaria - rads_cenozoic - Periphaena <title>radiolaria - rads_cenozoic - Periphaena


Classification: rads_cenozoic -> Coccodiscidae -> Periphaena
Sister taxa: Cypassis, Diartus, Didymocyrtis, Heterosestrum, Lithocyclia, Periphaena, Phacodiscus, Sethodiscus, Spongoliva, Stylocyclia, Trigonocyclia
Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
Periphaena delta

neptune records: 30

Periphaena dupla

neptune records:

Periphaena heliasteriscus

neptune records: 90

Periphaena triactis

neptune records: 141

Periphaena tripyramis

neptune records: 3
Periphaena tripyramis triangula
Periphaena tripyramis tripyramis

Periphaena decora

neptune records: 315

Periphaena sp.

neptune records: 1


Citation: Periphaena Ehrenberg 1873
Rank: genus
Basionym: Periphaena

Catalog entries: Periphaena

Translated description: Differs from Haliommatins in having a subglobose test in a hyaline girdle or edge, with no radii of the nucleus projecting. It differs from the related Chilommatas in lacking radii and spines. (Translated from Latin by E.M.R. and W.R.R.)]




Biogeography and Palaeobiology

Similar species

Geographic distribution


Phylogenetic relations

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Piacenzian Stage (100% up, 2.6Ma, in Piacenzian stage). 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:


Ehrenberg, C. G. (1874b). Grössere Felsproben des Polycystinen-Mergels von Barbados mit weiteren Erläuterungen. Monatsberichte der Koniglichen Preussische Akademie der Wissenschaften zu Berlin. 1873: 213-263. gs V O


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

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