This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.

Higher levels: rads_cat -> T -> Tessarastrum
Other pages this level: Talariscus, Taurospyris, Tepka, Tessarastrum, Tessarospyris, Tesserastrum, Tetracanthus, Tetracapsa, Tetracina, Tetraedrina, Tetrahedrina, Tetrapera, Tetrapetalon, Tetraplagia, Tetraplecta, Tetrapteroma, Tetrapyle, Tetrapylonium, Tetrasolenia> >>

Tessarastrum brunonis Haeckel 1887

Tessarastrum democriti Haeckel 1887

Tessarastrum fortii Carnevale 1908

not figuredTessarastrum spinozae Haeckel 1887

Tessarastrum straussii Haeckel 1887
= Amphirhopalum straussii
Tessarastrum thiedei Goll & Bjørklund 1989
= Tessarastrum thiedei
Tessarastrum venabulum Berdnikov 1991


Citation: Tessarastrum Haeckel 1887
Rank: genus
Described on page(s) : 547
Family (traditional): Spongodiscidae

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Current identification/main database link: Tessarastrum Haeckel 1887

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).

Etymology: Greek tessarastrum = starrulet with four rays"

Extra details from original publication
The genus Tessarastrum, formerly united by me with Histiastrum, differs from the latter in its bilateral or symmetrical form, and bears therefore the same relation to it that Hagiastrum does to Stauralastrum.
Sub-genera described:


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: 18-1-2021

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