radiolaria - rads_cat - Cyrtocapsella isopera

CATALOG OF ORIGINAL DESCRIPTIONS: Cyrtocapsella isopera Chen 1975

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 -> Cyrtocapsella -> Cyrtocapsella isopera

Other pages this level: C. ampullacea, C. eldholmi, C. isopera, C. japonica dilatata, C. kladaros, C. robusta, C. rumana, C. tetrapera distributa

Cyrtocapsella isopera Chen 1974.jpg

Cyrtocapsella isopera

Citation: Cyrtocapsella isopera Chen 1975

Rank: species

Type specimens: pl.4, figs.3-5

Type repository: U.S. National Museum, Washington, D.C. [No number given]

Described on page(s) : p.488

Family (traditional): Theoperidae

Family (modern): Lophocyrtiidae

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Current identification:

Original Description
Cephalis spherical, bearing one short, conical apical spine, with few. small, circular pores. Collar stricture marked by a distinct change in contour. Thorax campanulate, smooth-walled, with longitudinally disposed circular pores of uniform dimension. Lumbar stricture distinct. Abdomen cylindrical, inflated cylindrical or inverted conical, with a constriction at the middle in some specimens. Abdominal pores similar in size and arrangement to those in the thorax. Shell closed by a sieve plate with a small circular aperture.
(Dimensions based on 30 specimens from 266-21-3, 50-52 cm.; 266-20, CC; 266-19, CC; and 266-18, CC.) Length of cephalis 18-20µm, of thorax 36-54µm, of abdomen 36-80µm. Width of thorax 54-83µm, of abdomen 50-93µm. Distinguishing characters (rw): This species is characterized by its small, circular, uniform pores in both thorax and abdomen.

References:

Chen, P. H. (1974). Some new Tertiary Radiolaria from Antarctic deep-sea sediments. Micropaleontology. 20(4): 480-492. gs

Cyrtocapsella isopera compiled by the radiolaria@mikrotax project team viewed: 4-3-2021

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=250818 Go to Archive.is to create a permanent copy of this page - citation notes

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