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Siphostichartus
Taxonomy
Siphostichartus was named by Nigrini (1977) [Artostrobiid having four segments, ovate to spindle-shaped; mouth constricted, no terminal feet; vertical tube flared (duck-billed *) ; apical horn present.]. It was considered monophyletic by Nigrini (1977).
It was assigned to Radiolaria by Nigrini (1977); to Artostrobiidae by De Wever et al. (2001); and to Nassellaria by Sepkoski (2002).
It was assigned to Radiolaria by Nigrini (1977); to Artostrobiidae by De Wever et al. (2001); and to Nassellaria by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Siphostichartus Nigrini |
| 2001 | Siphostichartus De Wever et al. p. 255 |
| 2002 | Siphostichartus Sepkoski |
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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. †Siphostichartus Nigrini 1977
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Diagnosis
No diagnoses are available