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Yuknessaspis benningtonis
Taxonomy
Yuknessaspis benningtonis was named by Sundberg (1994). Its type specimen is LACMIP 11983, a cephalon/head, and it is a 3D body fossil. Its type locality is Dugway Range, 36.80m, LACMIP 15543, which is in a Delamaran marine limestone in the Trailer Formation of Utah.
Subspecies
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Yuknessaspis benningtonis Sundberg pp. 114 - 117 figs. Figures 74-76 |
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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.
†Yuknessaspis benningtonis Sundberg 1994
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†Yuknessaspis benningtonis convexus Sundberg 1994
†Yuknessaspis benningtonis planus Sundberg 1994
†Yuknessaspis benningtonis benningtonis Sundberg 1994
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. A. Sundberg 1994 | Yuknessaspis with cranidium with medial swelling, downsloping preglabellar field and anterior area of fixigena. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class | |||||
| References: Fortey and Owens 1999, Aberhan et al. 2004 | |||||
Age range: Delamaran or 511.20000 to 506.50000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Delamaran | USA (Utah) | Yuknessaspis benningtonis (10565 134067 134069 134070 134111 type locality: 134113 134115 134116 134117) | |
| Delamaran | USA (Nevada) | Yuknessaspis benningtonis (134252) |