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Permophorus triassicus
Taxonomy
Permophorus triassicus was named by Newell and Boyd (1999). Its type specimen is AMNH 44088, a valve (Right valve), and it is a 3D body fossil. Its type locality is AMNH B7850, Commissary Ridge, which is in a Spathian marine limestone in the Thaynes Formation of Wyoming.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1999 | Permophorus triassicus Newell and Boyd p. 2 figs. 2-4 |
| 2013 | Permophorus triassicus Hautmann et al. p. 279 figs. 6U,V, 7A |
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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.
†Permophorus triassicus Newell and Boyd 1999
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 3 | 25.4 | 19.3 | 29.6 | 28.7 | 5.69 |
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| Source: g = genus, c = class | |||||
| References: Hendy et al. 2009, Aberhan et al. 2004 | |||||
Age range: Spathian or 248.10000 to 246.70000 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Olenekian | USA (Idaho) | Permophorus triassicus (44301) | |
| Spathian | USA (Montana) | Permophorus triassicus (94879) | |
| Spathian | USA (Idaho) | Permophorus triassicus (44302) | |
| Spathian | USA (Wyoming) | Permophorus triassicus (type locality: 44296 44298) | |
| Spathian | USA (Utah) | Permophorus triassicus (44294 44300 62970 62982 62991 63007 63008 63205 141586 141602) |