radiolaria - rads_cat - Stylodiscus endostylus radiolaria - rads_cat - Stylodiscus endostylus

CATALOG OF ORIGINAL DESCRIPTIONS: Stylodiscus endostylus 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 -> Stylodiscus -> Stylodiscus endostylus
Other pages this level: S. amphistylus, S. clandestinus, S. cornutus, S. endostylus, S. pedibus, S. proprius

Stylodiscus endostylus

Citation: Stylodiscus endostylus Haeckel 1887
Taxonomic rank: species
Described on page(s) : p.413
Type specimens: pl.31, fig.11
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type locality: LM17
Type repository: No information given

Current identification:


Original Description

Disk with smooth surface and dentate margin. Pores irregular, roundish; ten to twelve on the radius of the disk. Marginal teeth conical, short, irregular. Both opposite polar spines cylindrical, longer than the diameter of the disk, and as broad as one larger pore. On the inside of the hollow disk both spines are prolonged into two strong centripetal axial rods, which do not reach the center. Also a number of smaller centripetal axial rods surrounds the central cavity, so that an original medullary shell (Sethostylus) seems to have been lost (comp. above, p. 410).

Size:
Diameter of the disk 0.25, of the pores 0.005 to 0.02; length of the polar spines 0.3 and more, thickness 0.012.

Editors' Notes
Haeckel listed Stylodiscus endostylus under the subgeneric name Stylentodiscus, but did not include the subgeneric name in the species name.[comment from RadWorld database]

References:

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 years 1873-1876. 18: 1-1803. gs O


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Stylodiscus endostylus compiled by the radiolaria@mikrotax project team viewed: 20-7-2025

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=260933 Go to Archive.is to create a permanent copy of this page - citation notes



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