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Zygocycloides
Taxonomy
Zygocycloides was named by Smith and Paul (1982) [Sepkoski's age data: O Ashg-l]. Its type is Zygocycloides variabilis. It was considered monophyletic by Smith and Paul (1982).
It was assigned to Cyclocystoididae by Smith and Paul (1982); and to Isorophida by Sepkoski (2002).
It was assigned to Cyclocystoididae by Smith and Paul (1982); and to Isorophida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1982 | Zygocycloides Smith and Paul |
| 2002 | Zygocycloides 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. †Zygocycloides Smith and Paul 1982
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†Zygocycloides magnus Miller and Dyer 1878
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Invalid names: Cyclocystoides bellulus Miller and Dyer 1878 [synonym], Cyclocystoides minus Miller and Dyer 1878 [synonym]
†Zygocycloides marstoni Salter 1865
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Invalid names: Cyclocystoides caractaci Etheridge 1939 [synonym]
†Zygocycloides raymondi Foerste 1920
†Zygocycloides variabilis Smith and Paul 1982
Diagnosis
No diagnoses are available