Classification: rads_cenozoic -> hidden -> Mesozoic rads -> Astromma
Sister taxa: << < Amphibrachium, Amphipyndax, Amphiternis, Andromeda, Anthocyrtoma, Arbatrossidium, Archaeodictyomitra, Archaeohagiastrum, Archaeospongoprunum, Archicapsa, Archicorys, Artocapsa, Artocyrtis, Astractinium, Astrocyclia, Astromma, Atlanticella, Aulacantha, Aulographonium, Botryocylinder, Caneta, Cannartus, Castanidium, Cavaspongia, Cecrops, Cinclopyramis, Cinguloturris, Cittiglioella, Clathomitra, Clathropyrgus, Clistophaera> >>
Daughter taxa (time control age-window is: 0-800Ma)
Astromma sp.

neptune records:


Citation: Astromma
Rank: genus
Basionym: Astromma

Catalog entries: Astromma

Original description: Corpuscula disciformia, media parte nucleata, margine lato vage aut concentrice celluloso. (Mixta). Cellula media ampla nucleata, marginales tenues in seriebus concentricis aut spongiosae ordine nullo.

lobata aut radiata. radiis subconcentrice cellulosis liberis (apice stiligeris).

Translated description: Small, disc-shaped body, median part nucleate, with a sometimes wide or concentrically cellular margin. (Mixed) Median chamber wide and nucleate, margin delicate with concentric rows or irregular spongy. Lobate or radiate. Radii free, subconcentrically chambered (spined at the apex). (Translated from Latin by E.M.R. and W.R.R.)]


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): at top of No known fossil record modern (100% up, 0Ma, in "Holocene" stage). Data source: Total of range of species in this database

Plot of occurrence data:



Astromma compiled by the radiolaria@mikrotax project team viewed: 17-5-2021

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