Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
![]() | Spongoplegma rugosa neptune records: | |||
![]() | ![]() | ![]() | ![]() | Spongoplegma variabile neptune records: |
Spongoplegma sp. neptune records: 114 |
Catalog entries: Spongoplegma
Original description: 6a. Tribus: Plegmosphaerida. Spongosphaeria ancantha, testae globosis spongiosae superficie
externa laevi aut asperta sed non aculeata.
A. testis medullaribus (testis globosis clathratis centralibus) in centro globi spongiosi aut una aut pluribus.
AI. testa medullari simplici.
Translated description: 6a. Tribe: Plegmosphaerida. Spongosphaeria without spines, with the external surface of the spongy spherical test smooth or rough, but without spines.
A.With one or more medullary tests (latticed, spherical, central tests) in the center of the spongy sphere.
AI. With single medullary shell. (Translated from Latin by E.M.R. and W.R.R.)]
Remarks on original description: [Synonymized with Rhizosphaera Haeckel, emend Hollande and Enjumet by Petrushevskaya, 1975c, p.571]
Geological Range:
Last occurrence (top): Extant. Data source: Total of ranges of the species in this database
First occurrence (base): within Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
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Spongoplegma compiled by the radiolaria@mikrotax project team viewed: 22-5-2025
Short stable page link: https://mikrotax.org/bforams/index.php?id=205518 Go to Archive.is to create a permanent copy of this page - citation notes |