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Trigonactinium
Taxonomy
Trigonactinium was named by Haeckel (1887) [Distal end of the arms armed with a radial spine.]. It is extant. It was considered monophyletic by Haeckel (1887).
It was assigned to Radiolaria by Haeckel (1887).
It was assigned to Radiolaria by Haeckel (1887).
Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Trigonactinium Haeckel |
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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.
G. Trigonactinium Haeckel 1887
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Diagnosis
No diagnoses are available