|Daughter taxa (time control age-window is: 0-800Ma)|
Catalog entries: Spongoliva
Original description: Spongurida with spongy ellipsoidal cortical shell, enclosing a double, spherical or ellipsoidal, latticed medullary shell. Polar spines absent.
The genus Spongoliva differs from the nearest Spongodruppa by duplication of the medullary shell; it bears therefore the same relation to this that Prunulum does to Druppulla, and can be regarded as a Prunulum, in which the simple latticed cortical shell is replaced by a spongy framework.
Last occurrence (top): Extant. Data source: Total of range of species in this database
First occurrence (base): at base of Gelasian Stage (0% up, 2.6Ma, in Piacenzian stage). Data source: Total of range of species in this database
Plot of occurrence data:
Spongoliva compiled by the radiolaria@mikrotax project team viewed: 7-2-2023
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