radiolaria - rads_cat - Phacostylus caudatus radiolaria - rads_cat - Phacostylus caudatus

CATALOG OF ORIGINAL DESCRIPTIONS: Phacostylus caudatus 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 -> P -> Phacostylus -> Phacostylus caudatus
Other pages this level: P. amphipyramis, P. amphistylus, P. amphixiphus, P. caudatus, P. dellupi, P. originalis, P. vicinus

Phacostylus caudatus

Citation: Phacostylus caudatus Haeckel 1887
Taxonomic rank: species
Described on page(s) : p.431
Type specimens: pl.32, fig.6
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type locality: LM12
Type repository: No information given

Current identification:


Original Description

Disk with smooth surface, two and a half times as broad as the outer, and six times as broad as the inner medullary shell. Pores regular, circular; six to seven on the radius of the disk. Margin with a solid equatorial girdle, and irregularly bordered with eight to ten conical spines; two opposite of these are much longer than the others. (This species can be derived from Astrosestrum, two opposite marginal spines being much more strongly developed than the six to eight others.)

Size:
Diameter of disk 0.12, of the outer medullary shell 0.05, of the inner 0.02; length of the polar spines 0.1 to 0.25, basal breadth 0.025.

Editors' Notes
Haeckel listed Phacostylus caudatus under the subgeneric name Astrostylus, 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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Phacostylus caudatus compiled by the radiolaria@mikrotax project team viewed: 18-2-2025

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=262057 Go to Archive.is to create a permanent copy of this page - citation notes



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