radiolaria - rads_cenozoic - Tripilidium <title>radiolaria - rads_cenozoic - Tripilidium


Classification: rads_cenozoic -> Plagiacanthidae -> Plagiacanthidae inc sed -> Tripilidium
Sister taxa: Theopilium, Tripilidium


Citation: Tripilidium Haeckel 1881
Rank: genus
Basionym: Tripilidium
Taxonomic discussion: Type by SD of Campbell as Hkl only apparently gave species in 1887 after Rüst was using name. T. nanum Rüst illustration is indecipherable. R 1881 is diff. geol. age (Jurassic) than Hkl. Designation by Campbell unacceptable. Usage of this genus by others highly inconsistent. Best treat as nomem dubium -dbl

Catalog entries: Tripilidium

Original description: 1b. Tribus: Archipilida Monocyrtida aperta triradiaita.
C. Archipilida, tripoda (= Tripodiscida).(Archipilida margine ostii tribus appendicibus ornato).
BII. acuta (capitulo spinoso, non laevi)
IIb. tribus pedibus terminalibus sine costis lateralibus longitudinalibus.
c+ pedibus simplicibus.

Translated description: 1b. Tribe: Archipilida. Open, triradiate monocyrtids.
C. Three-footed Archipilida (= Tripodiscida). (Archipilida with the apertural margin provided with three appendages).
BII. Acute (cephalis spiny, not smooth).
IIb. Three terminal feet, but lackina lateral longitudinal ribs.
c+ Feet simple. (Translated from Latin by E.M.R. and W.R.R.)]




Biogeography and Palaeobiology

Similar species

Geographic distribution


Phylogenetic relations

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Chattian Stage (100% up, 23Ma, in Aquitanian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Danian Stage (0% up, 66Ma, in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:


Haeckel, E. (1882a). Entwurf eines Radiolarien-Systems auf Grund von Studien der Challenger-Radiolarien [Basis for a radiolarian classification from the study of Radiolaria of the Challenger collection]. Jenaische Zeitschrift für Naturwissenschaft. 15: 418-472. gs


Tripilidium compiled by the radiolaria@mikrotax project team viewed: 30-1-2023

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