Classification: rads_cenozoic -> Spongodiscidae -> Euchitoniidae -> Tessarastrum
Sister taxa: Amphicraspedum, Dictyocoryne, Myelastrum, Perichlamydium, Rhopalastrum, Spongaster, Tessarastrum
Daughter taxa: (blue => in age window 0-800Ma)
Tessarastrum thiedei

neptune records: 35
Tessarastrum sp.

neptune records: 2


Citation: Tessarastrum Haeckel 1887
Rank: genus
Basionym: Tessarastrum

Catalog entries: Tessarastrum

Original description: Porodiscida with four simple, undivided, chambered arms, connected by a patagium; quadrangular shell bilateral, two opposite arms of the main axis (or principal arms) different from the two others (or lateral arms).


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 Aquitanian Stage (0% up, 23Ma, in Aquitanian stage). Data source: Total of range of species in this database

Plot of occurrence data:


Haeckel, E (1887). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the year 1873-1876, Zoology. 18: 1-1803. gs


Tessarastrum compiled by the radiolaria@mikrotax project team viewed: 24-11-2020

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Short stable page link: http://mikrotax.org/radiolaria/index.php?id=205721 Go to Archive.is to create a permanent copy of this page - citation notes

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