radiolaria - rads_cenozoic

radiolaria - rads_cenozoic - Heterosestrum <title>radiolaria - rads_cenozoic - Heterosestrum

Heterosestrum

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

Daughter taxa (time control age-window is: 0-800Ma)
				Heterosestrum sexispinatum rotundum neptune records: 1
				Heterosestrum sp. neptune records:

Taxonomy

Citation: Heterosestrum Clark and Campbell 1945

Rank: genus

Basionym: Heterosestrum

Taxonomic discussion: Has been assigned to Actinommidae, here assigned to Coccodiscidae following new classification being developed by Suzuki & co-workers

Catalog entries: Heterosestrum

Original description: Heliosestrinae with double medullary shell and with 6 (rarely fewer) solid regularly disposed radial spines on the margin of the disc.

Description

Morphology:

Size:

Biogeography and Palaeobiology

Similar species

Geographic distribution

Paleobiology

Phylogenetic relations

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Chattian Stage (100% up, 23Ma, in Aquitanian 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:

Clark, B. L. & Campbell, A. S. (1945b). Radiolaria from the Kreyenhangen Formation near Los Banos, California. Geological Society of America, Memoir. 1-66. gs

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

Taxon Search:

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AphiaID: not found
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=204274 Go to Archive.is to create a permanent copy of this page - citation notes

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