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Helvetocapsa
Taxonomy
Helvetocapsa was named by O'Dogherty et al. (2006) [Type species: Tricolocapsa matsuokai Sashida, in SASHIDA, K. MUNASRI, ADACHI, S. and KAMATA, Y., 1999. Middle Jurassic radiolarian fauna from Rotti Island, Indonesia. Journal of Asian Earth Sciences 17(4): 561-572.]. Its type is Tricolocapsa matsuokai.
It was assigned to Williriedellidae by O'Dogherty et al. (2006).
It was assigned to Williriedellidae by O'Dogherty et al. (2006).
Species
Entered
by T. Schossleitner (authorized by W. Kiessling) on 2006-10-30; modified by W. Kiessling on 2013-10-27
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Helvetocapsa O'Dogherty et al. p. 444 |
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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. †Helvetocapsa O'Dogherty et al. 2006
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†Helvetocapsa lemanensis O'Dogherty et al. 2006
†Helvetocapsa matsuokai Sashida 1999
†Helvetocapsa minoensis Matsuoka 1991
†Helvetocapsa nanjoensis Matsuoka 1991
†Helvetocapsa plicata semiplicata Matsuoka 1991
†Helvetocapsa prealpina O'Dogherty et al. 2006
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. O'Dogherty et al. 2006 | Test spindle shaped, multisegmented, composed of
three, four, or possibly more segments. Last segment inversely conical with a small constricted aperture at its base. Segmental divisions generally not well pronounced externally, only faint strictures present in some species. Small circular pores on surface arranged in longitudinal rows. Numerous longitudinal plicae are generally well developed on the entire test. One row of pores present between neighbouring plicae. |