Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
![]() | ![]() | ![]() | ![]() | Rhizoplegma boreale neptune records: |
![]() | ![]() | Rhizoplegma densum neptune records: | ||
Rhizoplegma sp. neptune records: |
Catalog entries: Rhizoplegma
Original description: 6e. Tribus: Rhizosphaerida. Spongosphaeria polyacanthaa, (aculeis multis plerumque sine ordine dispersis).
A. testis medullaribus una vel pluribus.
AI. cortice spongioso per liberum intervallum (radios continens) a testis medullaribus separato.
A. testa medullari simplici.
Translated description: 6e. Tribe: Rhizosphaerida. Spongosphaeria with many spines (the many spines, eight or more, usually scattered without definite arrangement).
A. With one or more medullary shells.
AI. With the spongy cortex separated from the medullary shells by a free interval (with connecting radii).
A. With single medullary shell. (Translated from Latin by E.M.R. and W.R.R.)]
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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Rhizoplegma compiled by the radiolaria@mikrotax project team viewed: 25-4-2025
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