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Adelphicrinus
Taxonomy
Adelphicrinus was named by Guensburg and Sprinkle (2003). Its type is Adelphicrinus fortuitus.
It was assigned to Monobathrida by Guensburg and Sprinkle (2003); and to Camerata by Cole (2017).
It was assigned to Monobathrida by Guensburg and Sprinkle (2003); and to Camerata by Cole (2017).
Species
A. fortuitus (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Adelphicrinus Guensburg and Sprinkle p. 23 |
| 2017 | Adelphicrinus Cole |
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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. †Adelphicrinus Guensburg and Sprinkle 2003
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†Adelphicrinus fortuitus Guensburg and Sprinkle 2003
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. E. Guensburg and J. Sprinkle 2003 | A monocyclic camerate with arm branching above cup, radials in lateral contact, five primibrachs, arms free above primibrach two, interbrachial fields small, with small plates arranged in a 1-3 pattern in one case, interbrachials with small pores at plate corners; free arms branch at least twice, isotomous, no pinnules observed, Brr uniserial; proximal stem relatively large, circular, pentameric, with large circular lumen. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Kiessling 2004 | |||||
Age range: Blackhillsian or 475.30000 to 471.30000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Blackhillsian | USA (Utah) | A. fortuitus (201741) |