CATALOG OF ORIGINAL DESCRIPTIONS: Tripodictya trigonaria Haeckel 1887

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 -> Tripodictya -> Tripodictya trigonaria
Other pages this level: T. triacantha, T. tribelonia, T. trigonaria

Tripodictya trigonaria

Citation: Tripodictya trigonaria Haeckel 1887
Rank: species
Type locality: LM17
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type specimens: pl.42, fig.8
Type repository: No information given
Described on page(s) : p.505

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Current identification:

Original Description
All rings of the disk concentric, triangular, with three equal convex sides, all of the same breadth; first and second rings with three simple chambers, third and fourth rings with six chambers, fifth ring with twelve chambers. Central chamber also equilateral triangular, from its three corners arise three piercing perradial beams; from the second. ring arise three interradial beams, alternate with the latter; from the fourth ring between these and the former arise six adradial beams. Pores subregular, two on the breadth of each ring. Three marginal spines pyramidal, as long as the radius of the disk and as broad as one ring.

Size: Diameter of the disk (with five rings) 110µm; breadth of each ring 11µm; pores 4µm.


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


Tripodictya trigonaria compiled by the radiolaria@mikrotax project team viewed: 2-3-2021

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