CATALOG OF ORIGINAL DESCRIPTIONS: Sethostaurus orthostaurus 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 -> S -> Sethostaurus -> Sethostaurus orthostaurus
Other pages this level: S. conostaurus, S. coronatus, S. cruciatus, S. gigas, S. orthostaurus, S. parvulus, S. recurvatus, S. rhombostaurus

Sethostaurus orthostaurus

Citation: Sethostaurus orthostaurus Haeckel 1887
Rank: species
Type locality: LM19
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type specimens: pl.31, figs.1,2
Type repository: No information given
Described on page(s) : p.433

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Current identification:

Original Description
Disk with smooth surface, three times as broad as the medullary shell. Pores regular, circular; thirteen to fourteen on the radius of the disk. Margin simple, smooth, without girdle. Four crossed spines equal, pommel-shaped, angular, contracted at the base, scarcely as long as the diameter of the medullary shell.

Size: Diameter of the disk 0.16, of the medullary shell 0.05 ; length of the crossed spines 0.04, breadth 0.02.

Editors' Notes
Haeckel listed Sethostaurus orthostaurus under the subgeneric name Sethostaurium, but did not include the subgeneric name in the species name.[comment from RadWorld database]


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


Sethostaurus orthostaurus compiled by the radiolaria@mikrotax project team viewed: 25-2-2021

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