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Bikocrinus
Taxonomy
Bikocrinus was named by Ausich (1985) [Sepkoski's age data: S Ldov-m Sepkoski's reference number: 526]. It is not extant.
It was assigned to Stelidiocrinidae by Ausich (1985); and to Monobathrida by Sepkoski (2002).
It was assigned to Stelidiocrinidae by Ausich (1985); and to Monobathrida by Sepkoski (2002).
Species lacking formal opinion data
Entered
by J. Sepkoski on 2003-01-23; modified by D. van Oyen on 2013-04-30
Synonymy list
| Year | Name and author |
|---|---|
| 1985 | Bikocrinus Ausich |
| 2002 | Bikocrinus 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. †Bikocrinus Ausich 1985
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. I. Ausich 1985 | Stelidiocrinid with a low bowl- shaped cup; two tiers of interradials in nor- mal interrays, second tier with two plates; fixed secundibrachials, one or none, if no fixed secundibrachials primaxil yielding free arms; 10 free arms. |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Kiessling 2004, Aberhan 1992 | |||||
Age range: Aeronian or 440.50000 to 438.60000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Llandovery | USA (Ohio) | B. baios (13337) | |
| Aeronian | USA (Ohio) | B. baios (22964) |