radiolaria - rads_cenozoic - Astrophacus radiolaria - rads_cenozoic - Astrophacus


Classification: rads_cenozoic -> Heliodiscidae -> Astrophacus
Sister taxa: Astrophacus, Excentrococcus, Excentrosphaerella, Heliodiscus
Daughter taxa (time control age-window is: 0-800Ma)
Astrophacus inca

neptune records: 8
Astrophacus linckiaformis

neptune records: 6
Astrophacus sp.

neptune records: 1


Citation: Astrophacus Haeckel 1881
taxonomic rank: genus
Basionym: Astrophacus
Taxonomic discussion:

Catalog entries: Astrophacus

Original description: 1b. Tribus: Heliodiscida. Phacodiscida aculeata cum aculeis marginalibus in plano lentis
aequatoriali sitis.
D. aculeis multis marginalibus (quinque aut pluribus, plerumque sine ordine in zona aequatoriali radiantibus).
DII. testa med. duplici (aculeis omnibus simplicibus).
IIb. testae superficie spinosa.

Translated description: 1b. Tribe: Heliodiscida. Spined Phacodiscida, with marginal spines situated in the equatorial plane of the lens.
D. With many marginal spines (five or more, usually radiating in the equatorial zone without definite arrangement).
DII. With double medullary shell (all spines simple).
IIb. With the surface of the test spiny. (Translated from Latin by E.M.R. and W.R.R.)]


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Paleogene Period (100% up, 23Ma, in Aquitanian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Total of ranges 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 O


Astrophacus compiled by the radiolaria@mikrotax project team viewed: 14-6-2024

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