Astrophacus


Classification: rads_cenozoic -> Heliodiscidae -> Astrophacus
Sister taxa: Astrophacus, Excentrococcus, Excentrosphaerella, Heliodiscus
Daughter taxa: (blue => in age window 0-800Ma)
Astrophacus inca

neptune records: 8
Astrophacus linckiaformis

neptune records: 6
Astrophacus sp.

neptune records: 1

Taxonomy

Citation: Astrophacus Haeckel 1881
Rank: genus
Basionym: Astrophacus

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.)]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Chattian Stage (100% up, 23Ma, in Chattian 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:

References:

Haeckel, E. (1882). 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


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Astrophacus compiled by the radiolaria@mikrotax project team viewed: 3-12-2020

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Short stable page link: http://mikrotax.org/radiolaria/index.php?id=203276 Go to Archive.is to create a permanent copy of this page - citation notes



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