Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
| Xiphosphaera gaea neptune records: | ||||
| Xiphosphaera tesseractis neptune records: | ||||
| Xiphosphaera sp. neptune records: | ||||
Catalog entries: Xiphosphaera
Original description: 1b. Tribus: Xiphostylida. Monosphaeria dissacantha (aculeis duobus oppositis, in uno axi sitis).
A. aculeis liberis, non annulo conjunctis.
AI. ambobus aculeis aequalibus, forma et magnitudine paribus.
Translated description: 1b. Tribe: Xiphostylida. Monosphaeria with two spines (two opposite spines, situated in one axis).
A. With spines free, not joined by a ring.
AI. With both spines equal, similar in form and size. (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 Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
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Xiphosphaera compiled by the radiolaria@mikrotax project team viewed: 7-2-2026
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=206023 Go to Archive.is to create a permanent copy of this page - citation notes |