radiolaria - rads_cat - Eucyrtidium cubense radiolaria - rads_cat - Eucyrtidium cubense

CATALOG OF ORIGINAL DESCRIPTIONS: Eucyrtidium cubense Riedel & Sanfilippo 1971

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 -> E -> Eucyrtidium -> Eucyrtidium cubense
Other pages this level: << < E. carinatum, E. carnegiense, E. cassis, E. cervus, E. cheni, E. chrysalidium, E. cienkowskii, E. conostoma, E. cornutella, E. coronatum, E. cranoides, E. crassiceps, E. creticum, E. cryptocephalum, E. cryptoprora, E. cubense, E. cuspidatum, E. cybaeum, E. cylindricum, E. delmontense, E. delmontense inflatum, E. delmontense nipponicum, E. demersissimum, E. diaphanes, E. diaphanum, E. doliolum, E. dufresni, E. ehrenbergii, E. elegans, E. elongatum, E. elongatum peregrinum> >>

Eucyrtidium cubense

Citation: Eucyrtidium cubense Riedel & Sanfilippo 1971
Rank: species
Described on page(s) : p.1594
Type specimens: pl.7, figs.10,11
Type repository: [No catalog number] U.S. National Museum, Washington, D.C. and Riedel's collection, SIO, UCSD, U.S.A.
Family (traditional): Theoperidae
Family (modern): Pterocorythidae

Current identification:

Original Description

Upper three segments form a conical section of the shell, and fourth segment (separated from third by slight if any internal ledge) approximately cylindrical. Cephalis subspherical, with few small pores, and bearing a short bladed apical spine. Collar stricture indistinct externally. Thorax campanulate and abdomen inflated annular, separated by pronounced internal and slight external lumbar stricture. Pores of both thorax and abdomen subcircular, larger and more closely spaced on the abdomen. In most specimens, longitudinal ridges on the surface of thorax and proximal part of abdomen separate longitudinal rows of pores. Fourth segment sub cylindrical, of densely spongy material. Termination ragged or broken in all observed specimens.

(Based on 9 specimens) Length of first three segments 120 to 150µm, their maximum breadth 90 to 135µm. Distinguishing characters (rw): This species differs from all other known members of the genus in the spongy nature of the fourth segment. The general form is reminiscent of Stichocorys, but that genus is believed to have originated as S. delmontensis from a Eucyrtidium-like ancestor during the early Miocene-much later than the range of this species.

[Probably after its occurrence in Cuba]

Editors' Notes
[New name Phormocyrtis cubensis (Riedel and Sanfilippo) Foreman, 1973a]


Foreman, H. P. (1973b). Radiolaria of Leg 10 with systematics and ranges for the families Amphipyndacidae, Artostrobiidae, and Theoperidae. Initial Reports of the Deep Sea Drilling Project. 10: 407-474. gs O

Riedel, W. R. & Sanfilippo, A. (1971). Cenozoic Radiolaria from the western tropical Pacific, Leg 7. Initial Reports of the Deep Sea Drilling Project. 7: 1529-1666. gs


Eucyrtidium cubense compiled by the radiolaria@mikrotax project team viewed: 2-4-2023

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