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Trissocyclidae
Taxonomy
Trissocyclidae was named by Goll (1968). It is extant. It was considered unknown by Goll (1968).
It was assigned to Nassellaria by Goll (1968); and to Spyrida by O'Conner (1994).
It was assigned to Nassellaria by Goll (1968); and to Spyrida by O'Conner (1994).
Synonymy list
| Year | Name and author |
|---|---|
| 1968 | Trissocyclidae Goll |
| 1994 | Trissocyclidae O'Conner p. 338 |
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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.
Fm. Trissocyclidae Goll 1968
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G. Acanthodesmia Müller 1857
G. Cantharospyris Haeckel 1882
G. Nephrospyris Haeckel 1887
G. Phormospyris Haeckel 1882
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. M. Goll 1968 | Representatives of Nassellarina having a sagittal ring |