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Cleistocrinus
Taxonomy
Cleistocrinus was named by Springer (1920) [Sepkoski's age data: S Ludl]. It is not extant.
It was assigned to Icthyocrinidae by Ubaghs et al. (1978); and to Sagenocrinida by Sepkoski (2002).
It was assigned to Icthyocrinidae by Ubaghs et al. (1978); and to Sagenocrinida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1920 | Cleistocrinus Springer p. 292 |
| 1978 | Cleistocrinus Ubaghs et al. p. T792 |
| 2002 | Cleistocrinus 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. †Cleistocrinus Springer 1920
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Diagnosis
No diagnoses are available