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Cyclocystoides
Taxonomy
Cyclocystoides was named by Salter and Billings (1858). Its type is Cyclocystoides halli. It was considered monophyletic by Smith and Paul (1982).
It was assigned to Echinodermata by Salter and Billings (1858); to Cyclocystoidea by Henderson and Shergold (1971); to Cyclocystoididae by Regnéll (1945), Parsley (1981) and Smith and Paul (1982); and to Isorophida by Sepkoski (2002).
It was assigned to Echinodermata by Salter and Billings (1858); to Cyclocystoidea by Henderson and Shergold (1971); to Cyclocystoididae by Regnéll (1945), Parsley (1981) and Smith and Paul (1982); and to Isorophida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1858 | Cyclocystoides Salter and Billings |
| 1945 | Cyclocystoides Regnéll |
| 1971 | Cyclocystoides Henderson and Shergold p. 706 |
| 1981 | Cyclocystoides Parsley |
| 1982 | Cyclocystoides Smith and Paul |
| 2002 | Cyclocystoides 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. †Cyclocystoides Salter and Billings 1858
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†Cyclocystoides halli Billings 1858
†Cyclocystoides latus Smith and Paul 1982
†Cyclocystoides scammaphoris Smith and Paul 1982
†Cyclocystoides tholicos Smith and Paul 1982
Diagnosis
No diagnoses are available