| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1948 | Ptyocephalus vigilans Whittington p. 567 figs. Pl. 82, figs. 1-5 |
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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.
†Ptyocephalus vigilans Whittington 1948
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Hendy 2009, Hendy et al. 2009, Aberhan et al. 2004 | |||||
Age range: Blackhillsian or 475.30000 to 471.30000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ibexian | Norway (Spitsbergen) | Ptyocephalus vigilans (106475) | |
| Blackhillsian | USA (Nevada) | Ptyocephalus vigilans (104433 104570 104630) | |
| Blackhillsian | USA (Utah) | Ptyocephalus vigilans (104141) |