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Cyrtisphaeractenium
Taxonomy
Cyrtisphaeractenium was named by Deflandre (1972) [Sepkoski's age data: D Fame C Vise-l]. Its type is Cyrtisphaeractenium mendax.
It was assigned to Spumellaria by Sepkoski (2002); and to Archocyrtiidae by De Wever et al. (2001) and Feng et al. (2004).
It was assigned to Spumellaria by Sepkoski (2002); and to Archocyrtiidae by De Wever et al. (2001) and Feng et al. (2004).
Species
C. crassum, C. delicatum, C. fluegeli, C. mendax (type species), C. rurae, C. sandbergi, C. shengi, C. spinosum
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1972 | Cyrtisphaeractenium Deflandre |
| 2001 | Cyrtisphaeractenium De Wever et al. p. 213 |
| 2002 | Cyrtisphaeractenium Sepkoski |
| 2004 | Cyrtisphaeractenium Feng et al. p. 384 |
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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. †Cyrtisphaeractenium Deflandre 1972
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†Cyrtisphaeractenium crassum Cheng 1986
†Cyrtisphaeractenium delicatum Cheng 1986
†Cyrtisphaeractenium fluegeli Kiessling and Tragelehn 1994
†Cyrtisphaeractenium mendax Deflandre 1972
†Cyrtisphaeractenium rurae Won 1983
†Cyrtisphaeractenium sandbergi Schwartzapfel and Holdsworth 1996
†Cyrtisphaeractenium shengi Cheng 1986
†Cyrtisphaeractenium spinosum Cheng 1986
Diagnosis
No diagnoses are available