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Rhysostrophia nevadensis
Taxonomy
Rhysostrophia nevadensis was named by Ulrich and Cooper (1936). Its type specimen is USNM 91172, a valve, and it is a 3D body fossil. Its type locality is Ikes Canyon, Toquima Range, which is in a Whiterockian carbonate limestone in the Antelope Valley Formation of Nevada.
Synonymy list
| Year | Name and author |
|---|---|
| 1936 | Rhysostrophia nevadensis Ulrich and Cooper p. 630 |
| 1938 | Rhysostrophia nevadensis Ulrich and Cooper p. 241 figs. Plate 54 D, figures 9-11, 13-19; text figure 10 |
| 1970 | Rhysostrophia nevadensis Ross p. 68 figs. Plate 7, :figuves 18, 21, 23 |
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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.
†Rhysostrophia nevadensis Ulrich and Cooper 1936
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Hendy 2009, Aberhan et al. 2004 | |||||
Age range: Middle Ordovician or 471.30000 to 458.20000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Ordovician | USA (California) | Rhysostrophia nevadensis (226919 226920) | |
| Whiterockian | USA (Nevada) | Rhysostrophia nevadensis (type locality: 88946) | |
| Whiterockian | USA (California) | Rhysostrophia nevadensis (104318) |