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Syndiasmocrinus
Taxonomy
Syndiasmocrinus was named by Guensburg and Sprinkle (2022). It is not extant. Its type is Syndiasmocrinus apokalypto. It was considered monophyletic by Guensburg and Sprinkle (2022).
It was assigned to Hybocrinidae by Guensburg and Sprinkle (2022).
It was assigned to Hybocrinidae by Guensburg and Sprinkle (2022).
Species
S. apokalypto (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2022 | Syndiasmocrinus Guensburg and Sprinkle |
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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. †Syndiasmocrinus Guensburg and Sprinkle 2022
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†Syndiasmocrinus apokalypto Guensburg and Sprinkle 2022
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. E. Guensburg and J. Sprinkle 2022 | As for the type species, by monotypy |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Kiessling 2004, Aberhan 1992, Hendy et al. 2009 | |||||
Age range: Early/Lower Ordovician or 486.85000 to 471.30000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Ordovician | USA (Nevada) | S. sp., S. apokalypto (231317) |