CATALOG OF ORIGINAL DESCRIPTIONS: Cyclampterium neatum Sanfilippo & Riedel 1970

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 -> Cyclampterium -> Cyclampterium neatum
Other pages this level: C. brachythorax, C. leptetrum, C. longiventer, C. milowi, C. neatum, C. pegetrum, C. tanythorax

Cyclampterium neatum

Citation: Cyclampterium neatum Sanfilippo & Riedel 1970
Rank: species
Type specimens: pl.2, figs.17-18
Type repository: Holotype, PROA 102P, 82-84cm.; USNM 167356, D52/3
Described on page(s) : p.457
Family (traditional): Theoperidae
Family (modern): Lophocyrtiidae

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Current identification:

Original Description
Shell approximately spherical in general form. Cephalis subspherical, poreless or with a few small pores, with horn either short or absent. Collar stricture pronounced. Thorax very inflated pyriform, approaching a sphere, with rather delicate wall (especially in the more recent specimens) and pores circular to polygonal. increasing in size away from the collar stricture and then decreasing somewhat. Thoracic surface with very short thorns. Distal margin of thorax much narrower than its widest part. Abdomen short, inverted cap-shaped, with wall structure similar to adjacent part of thorax, and lumbar stricture distinguished externally by a very slight, if any, change in contour.

(Based on a total of 25 specimens) Total length 315-435µm. Maximum breadth 305-435µm. Distinguishing characters (rw): The approximately spherical form of the shell and the greatly reduced abdomen distinguish this species from all others of the genus.

Etymology: From the Greek neatos = youngest.


Sanfilippo, A. & Riedel, W. R. (1970). Post-Eocene "closed" theoperid radiolarians. Micropaleontology. 16(4): 446-462. gs


Cyclampterium neatum compiled by the radiolaria@mikrotax project team viewed: 24-2-2021

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