radiolaria - rads_cat - Phacodiscus rotula radiolaria - rads_cat - Phacodiscus rotula

CATALOG OF ORIGINAL DESCRIPTIONS: Phacodiscus rotula 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 -> Phacodiscus -> Phacodiscus rotula
Other pages this level: P. calvertanus, P. clypeus, P. coronoides, P. duplus, P. duplus ukrainicus, P. grandis, P. lentiformis, P. licharevi, P. rotula, P. subsphaericus, P. testatus

Phacodiscus rotula

Citation: Phacodiscus rotula Haeckel 1887
Taxonomic rank: species
Described on page(s) : p.424
Type specimens: pl.35, fig.7
Type age (chronostrat): [presumably Quaternary]
Type locality: LM6
Type repository: No information given

Current identification:


Original Description

Disk with smooth surface, four and a half times as broad as the outer and fourteen times as broad as the inner medullary shell. Pores regularly circular; sixteen to eighteen on the radius of the disk. Margin of the lens very thick, truncated, nearly as broad as the outer medullary shell.

Size:
Diameter of the disk 0.21, of the outer medullary shell 0.045, of the inner 0.015; pores 0.008.

Editors' Notes
Haeckel listed Phacodiscus rotula under the subgeneric name Phacodiscinus, 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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Phacodiscus rotula compiled by the radiolaria@mikrotax project team viewed: 7-2-2025

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=259130 Go to Archive.is to create a permanent copy of this page - citation notes



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