Classification: rads_cenozoic -> Spongodiscidae -> Euchitoniidae -> Spongaster
Sister taxa: Amphicraspedum, Dictyocoryne, Myelastrum, Perichlamydium, Rhopalastrum, Spongaster, Tessarastrum
Daughter taxa: (blue => in age window 0-800Ma) Granddaughter taxa
Spongaster berminghami

neptune records: 334

Spongaster pentas

neptune records: 227

Spongaster tetras

neptune records: 681

Spongaster sp.

neptune records: 35


Citation: Spongaster Ehrenberg 1861
Rank: genus
Basionym: Spongaster

Catalog entries: Spongaster

Original description: Polycystinum compositum e Calodictyis. Testa silicea spongiacea complanata obsolete radialo-stellata. Discus meditis spongiaceus et radii stellati apice tumescentes inermesque crusta spongiacea obvelati, distinctu difficiles.

Ad Dictyocorynam. proxime accedens, pallio a corpore non discreto, sed cum eo confluente differt. Species unica Spongaster Tetras ex abysso Californiae.

Translated description: Composite polycystin of the Calodictya. Siliceous test spongy, flattened, obsoletely radiate-stellate. Median disc spongy, and the stellate radii swollen at the apex and unarmed, covered by a spongy layer, difficult to distinguish.

Very closely resembling Dictyocoryne, with outer layer not separate from the body, but differs with its confluence. Single species Spongaster tetras. from the floor of the Sea of California. (Translated rom Latin by E.M.R. and W.R.R.)]
Remarks on original description: [Premature name in Ehrenberg, 1860a [775:769]; Nomen Nudum

Synonymized with Dictyocoryne Ehr. by Haeckel, 1862, p.467]


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 base of Aquitanian Stage (0% up, 23Ma, in Aquitanian stage). Data source: Total of range of species in this database

Plot of occurrence data:


Ehrenberg, C. G. (1861c). Uber den Tiefgrund des stillen Oceans zwischen Californien und den Sandwich-Inseln aus bis 15600' Tiefe nach Lieut. Brooke. Monatsberichte der Koniglichen Preussische Akademie der Wissenschaften zu Berlin. 1860: 819-834. gs


Spongaster compiled by the radiolaria@mikrotax project team viewed: 23-11-2020

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Short stable page link: http://mikrotax.org/radiolaria/index.php?id=205454 Go to Archive.is to create a permanent copy of this page - citation notes

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