radiolaria - rads_cenozoic

radiolaria - rads_cenozoic - Astrophacus <title>radiolaria - rads_cenozoic - Astrophacus

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

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

Morphology:

Size:

Biogeography and Palaeobiology

Similar species

Geographic distribution

Paleobiology

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:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Heliodiscidae

References:

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

Astrophacus compiled by the radiolaria@mikrotax project team viewed: 7-2-2023

Taxon Search:

Advanced Search

AphiaID: not found
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=203276 Go to Archive.is to create a permanent copy of this page - citation notes

Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information

1000

Notify me of new comments via email.

Remember my form inputs on this computer.