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Tonopahella goldfieldensis
Taxonomy
Tonopahella goldfieldensis was named by Sundberg and McCollum (2003). Its type specimen is USNM 517665, a cephalon/head, and it is a 3D body fossil. Its type locality is USNM 41992, Goldfield Hills, which is in a Delamaran offshore shelf siliciclastic in the Emigrant Formation of Nevada. It is the type species of Tonopahella.
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Tonopahella goldfieldensis Sundberg and McCollum pp. 981 - 982 figs. Plate 7, figures 1 - 6 |
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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.
†Tonopahella goldfieldensis Sundberg and McCollum 2003
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. A. Sundberg and L.B. McCollum 2003 | Cranidium with a nearly straight, slightly convex anterior border with shallow anterior border furrow. |
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy 2009, Whittington et al. 1997, Aberhan et al. 2004 | |||||
Age range: Delamaran or 509.70000 to 505.30000 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Delamaran | USA (Nevada) | Tonopahella goldfieldensis (69400 69406 69408 69410 69412 69414 69419 69429 69442 type locality: 69456 69474 69476 69477 69478 69480) | |
| Delamaran | Canada (Northwest Territory) | Tonopahella goldfieldensis (240006) | |
| Delamaran | USA (California) | Tonopahella goldfieldensis (69498 69511) |