radiolaria - rads_cenozoic - Cymaetron radiolaria - rads_cenozoic - Cymaetron


Classification: rads_cenozoic -> Theoperidae -> Eucyrtidiidae -> Cymaetron
Sister taxa: Artophormis, Calocyclas, Conicavus, Cymaetron, Cyrtocapsella, Eucyrtidium, Lithocampe, Lithopera, Lithostrobus, Stichocorys
Daughter taxa (time control age-window is: 0-800Ma)
Cymaetron sinolampas

neptune records: 10
Cymaetron sp.

neptune records: 4


Citation: Cymaetron Caulet 1991
Rank: genus
Basionym: Cymaetron

Catalog entries: Cymaetron

Original description: The two-segmented shell with a sinuous outline. Cephalis small with a robust internal cephalis structure. Apical spine extending outward as a strong rough apical horn. Vertical spine extruding as a small thorn. Dorsal and lateral spines prolonged as ribs on the upper part of the thorax. Thorax constricted in false segments. Opening wide open.


Biogeography and Palaeobiology

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:


Caulet, J. (1991). Radiolarians from the Kerguelen Plateau, Leg 119. Proceedings of the Ocean Drilling Program, Scientific Results. 119: 513-546. gs


Cymaetron compiled by the radiolaria@mikrotax project team viewed: 7-6-2023

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