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Oryctocephalites palmeri
Taxonomy
Oryctocephalites palmeri was named by Sundberg and McCollum (1997). Its type specimen is USNM 488926 and is a 3D body fossil. Its type locality is Oak Springs Section (ICS-1024), which is in a Dyeran marine horizon in the Pioche Shale Formation of Nevada.
It was recombined as Oryctocephalites (Parachangaspis) palmeri by Yuan and Zhao (2001).
It was recombined as Oryctocephalites (Parachangaspis) palmeri by Yuan and Zhao (2001).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1997 | Oryctocephalites palmeri Sundberg and McCollum p. 1081 figs. Oryctocephalites palmeri |
| 2001 | Oryctocephalites (Parachangaspis) palmeri Yuan and Zhao p. 148 |
| 2020 | Oryctocephalites palmeri Webster and Sundberg pp. 81 - 82 figs. 4–8, 11 |
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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.
†Oryctocephalites palmeri Sundberg and McCollum 1997
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. A. Sundberg and L. B. McCollum 1997 | Cranidium with medially expanded glabella, cir cular glabellar pits at the SO to S3 positions, SI transglabellar furrow, longitudinal furrows connecting SI to S3 pits, lateral glabellar furrows not extending to axial furrows, and occipital ring without longitudinal furrows. Seven thoracic segments each with long, cylindrical spine. Pygidium with 5 pairs of cylindrical spines. |
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Whittington et al. 1997, Aberhan et al. 2004, Hendy et al. 2009, Hendy 2009 | |||||
Age range: Dyeran or 515.30000 to 509.70000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lenian | USA (Nevada) | Oryctocephalites palmeri (9821) | |
| Dyeran | USA (Nevada) | Oryctocephalites palmeri (9820 10569 type locality: 204998 204999 205000 205007) |