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Cyrtella
Taxonomy
Cyrtella was named by Fredericks (1924) [Sepkoski's age data: P Asse P Guad-u Sepkoski's reference number: 1,538,712].
It was assigned to Spiriferida by Sepkoski (2002); and to Permasyrinxinae by Williams et al. (2006).
It was assigned to Spiriferida by Sepkoski (2002); and to Permasyrinxinae by Williams et al. (2006).
Synonyms
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Synonymy list
Year | Name and author |
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1924 | Cyrtella Fredericks |
1968 | Punctocyrtella Plodowski p. 252 |
2002 | Asyrinx Sepkoski |
2002 | Cyrtella Sepkoski |
2002 | Punctocyrtella Sepkoski |
2006 | Cyrtella Williams et al. p. 1900 |
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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. †Cyrtella Fredericks 1924
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†Cyrtella allandalensis Armstrong 1970
†Cyrtella berriedalensis Waterhouse 1987
†Cyrtella campbelli Armstrong 1970
†Cyrtella erecta Waterhouse 1987
†Cyrtella furcata Waterhouse 1987
†Cyrtella granulata Armstrong 1970
†Cyrtella koopi Archbold 1990
†Cyrtella kulikiana Fredericks 1916
†Cyrtella nagmargensis Bion 1928
†Cyrtella nobilis Armstrong 1970
†Cyrtella rhombica Chen 2004
†Cyrtella subparallela Waterhouse 1987
†Cyrtella ulladullensis Armstrong 1970
Invalid names: Asyrinx [synonym], Punctocyrtella Plodowski 1968 [synonym]
Diagnosis
No diagnoses are available