radiolaria - rads_cat - Cannartidium bicinctum radiolaria - rads_cat - Cannartidium bicinctum

CATALOG OF ORIGINAL DESCRIPTIONS: Cannartidium bicinctum 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 -> C -> Cannartidium -> Cannartidium bicinctum
Other pages this level: C. amphicanna, C. amphiconicum, C. amphicylindrum, C. bassanii, C. bicinctum, C. mammiferum

Cannartidium bicinctum

Citation: Cannartidium bicinctum Haeckel 1887
taxonomic rank: species
Described on page(s) : p.374
Type specimens: pl.39, figs.18-18a
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type locality: LM49
Type repository: No information given

Current identification:


Original Description

Cortical shell thick walled, with a thickened ring-shaped protuberance in the greatest breadth of both chambers. Pores subregular, circular, twice to three times as broad as the bars; seven to eight on the half meridian, thirteen to fifteen on the half equator of each chamber. Polar tubes conical, with smaller pores, somewhat shorter than the greatest breadth, nearly as thick at the base as the outer spheroidal medullary shell (fig. 18a).

Size:
Main axis (without tubes) 0.12, greatest breadth 0.08; pores 0.003 to 0.006, bars 0.002; length of the polar tubes 0.08, basal thickness 0.03.

Editors' Notes
Haeckel listed Cannartidium bicinctum under the subgeneric name Cannartidella, but did not include the subgeneric name in the species name.
Synonymized with Cannartus violina by Riedel, 1959a[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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Cannartidium bicinctum compiled by the radiolaria@mikrotax project team viewed: 21-6-2024

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=262006 Go to Archive.is to create a permanent copy of this page - citation notes



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