radiolaria - rads_cenozoic - Tetraplecta plectaniscus radiolaria - rads_cenozoic - Tetraplecta plectaniscus

Tetraplecta plectaniscus

Classification: rads_cenozoic -> Plagiacanthidae -> Plagiacanthidae (ss) -> Tetraplecta -> Tetraplecta plectaniscus
Sister taxa: T. pinigera, T. plectaniscus, T. sp.


Citation: Tetraplecta plectaniscus (Haeckel 1887) Takahashi 1991
taxonomic rank: species
Basionym: Tetraplecta plectaniscus

Catalog entries: Euscenium plectaniscus

Original description: Shell three-sided pyramidal, thorny, about as long as broad, with three dentate edges. Framework very loose, with irregular polygonal meshes; in the middle of each of the three triangular sides a horizontal band of denser network. Basal plate with three very large simple collar-holes. The apical horn and the three feet are three-sided pyramidal, about half as long as the columella, with three prominent irregularly dentate edges. The horn is straight, whilst the three feet are hook-shaped, its distal end being curved downwards and inwards.
Remarks on original description: Haeckel listed Euscenium plectaniscus under the subgeneric name Euscenarium, but did not include the subgeneric name in the species name.[comment from RadWorld database]


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: Lazarus et al. 2015 - "R age group"
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: Lazarus et al. 2015 - "R age group"

Plot of occurrence data:



Tetraplecta plectaniscus compiled by the radiolaria@mikrotax project team viewed: 18-6-2024

Taxon Search:
Advanced Search

Short stable page link: Go to to create a permanent copy of this page - citation notes

Add Comment

* Required information
Captcha Image
Powered by Commentics


No comments yet. Be the first!