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Peripristis semicircularis
Taxonomy
Ctenoptychius semicircularis was named by Newberry and Worthen (1866).
It was recombined as Peripristis semicircularis by St. John (1870), Eastman (1903) and Ivanov et al. (2009).
It was recombined as Peripristis semicircularis by St. John (1870), Eastman (1903) and Ivanov et al. (2009).
Synonymy list
| Year | Name and author |
|---|---|
| 1866 | Ctenoptychius semicircularis Newberry and Worthen p. 72 figs. pl. iv, fig. 18 |
| 1870 | Peripristis semicircularis St. John p. 434 |
| 1902 | Ctenoptychius semicircularis Hay p. 282 |
| 1903 | Peripristis semicircularis Eastman p. 178 |
| 2009 | Peripristis semicircularis Ivanov et al. p. 246 figs. 2E-F |
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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.
†Peripristis semicircularis Newberry and Worthen 1866
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Hendy et al. 2009, Wagner 2023, Carroll 1988 | |||||
Age range: base of the Mississippian to the top of the Virgilian or 358.90000 to 298.90000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Mississippian | USA (Kentucky) | Peripristis semicircularis (133266) | |
| Moscovian | USA (New Mexico) | Peripristis semicircularis (149386) | |
| Kasimovian | USA (Nebraska) | Peripristis semicircularis (132676 132976 132977 132978) | |
| Virgilian | USA (New Mexico) | Peripristis semicircularis (217070) |