radiolaria - rads_cenozoic

Periphaena

Classification: rads_cenozoic -> Coccodiscidae -> Periphaena
Sister taxa: Cypassis, Diartus, Didymocyrtis, Heterosestrum, Lithocyclia, Periphaena, Phacodiscus, Sethodiscus, Spongoliva, Stylocyclia, Trigonocyclia,

Daughter taxa: (blue => in age window 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	P. tripyramis triangula P. tripyramis tripyramis
	Periphaena decora neptune records: 315
	Periphaena sp. neptune records: 1

Taxonomy

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.)]

Description

Biogeography and Palaeobiology

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:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Coccodiscidae

References:

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

Periphaena compiled by the radiolaria@mikrotax project team viewed: 20-10-2020

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Short stable page link: http://mikrotax.org/radiolaria/index.php?id=204951 Go to Archive.is to create a permanent copy of this page - citation notes

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