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Uperocrinus pyriformis
Taxonomy
Actinocrinus pyriformis was named by Shumard (1855). It is not extant.
It was recombined as Uperocrinus pyriformis by Meek and Worthen (1865).
It was recombined as Uperocrinus pyriformis by Meek and Worthen (1865).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1855 | Actinocrinus pyriformis Shumard |
| 1865 | Uperocrinus pyriformis Meek and Worthen |
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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.
†Uperocrinus pyriformis Shumard 1855
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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: Tournaisian or 358.90000 to 346.70000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tournaisian | USA (Kentucky) | Uperocrinus pyriformis (65685 65686 65689 65691) |