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Tirocrinus
Taxonomy
Tirocrinus was named by Ausich (1987) [Sepkoski's age data: S Ldov-m Sepkoski's reference number: 703]. It is not extant.
It was assigned to Monobathrida by Sepkoski (2002); and to Periechocrinidae by Ausich et al. (2012).
It was assigned to Monobathrida by Sepkoski (2002); and to Periechocrinidae by Ausich et al. (2012).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1987 | Tirocrinus Ausich |
| 2002 | Tirocrinus Sepkoski |
| 2012 | Tirocrinus Ausich et al. p. 616 |
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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. †Tirocrinus Ausich 1987
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004, Kiessling 2004 | |||||
Age range: Llandovery or 443.10000 to 432.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Llandovery | USA (Ohio) | T. trochos (13337) |