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Palaeospiculum tetraradiatum

Radiolaria - Archaeospicularia - Palaeospiculidae

Taxonomy
Palaeospiculum tetraradiatum was named by Won and Iams (2002). Its type specimen is GSC-121931, a test, and it is a 3D body fossil.

Synonymy list
YearName and author
2002Palaeospiculum tetraradiatum Won and Iams p. 28 figs. figs. 3.15-3.18

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RankNameAuthor
Life
Eukaryota()
Rhizaria
phylumRetariaCavalier-Smith 1999
classRadiolariaMüller 1858
RankNameAuthor
superorderPolycystina(Ehrenberg 1867)
orderArchaeospiculariaDumitrica et al. 2000
familyPalaeospiculidae()
genusPalaeospiculum
speciestetraradiatum

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
M.-Z. Won and W. J. Iams 2002A spherical skeleton constructed on a point-centered four-rayed spicule; three to six spinules on each ray, commonly arising at two positions; proximal primary spinules very large and distal primary spinules not well developed; second-order spinules present on the primary spinules, third-order spinules on the second-order spinules present or absent; spinules generally radially arranged; densely distributed thorns or spinulets on distal part of each ray; spinule development giving rise to roughly spherical shell.