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Xestosia obsolescens
Taxonomy
Xestosia obsolescens was named by Cooper and Grant (1975). Its type specimen is USNM 148861b, a shell (Articulated shell), and it is not a trace fossil. Its type locality is USNM702un, Split Tank, Glass Mountains, which is in a Kungurian marine limestone in the Cathedral Mountain Formation of Texas. It is the type species of Xestosia.
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Xestosia obsolescens Cooper and Grant p. 1064 figs. Pl 382, figs 11-26 |
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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.
†Xestosia obsolescens Cooper and Grant 1975
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 7 | 19.0 | 15.3 | 29.5 | 18.7 | 4.77 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Williams et al. 2000, Aberhan et al. 2004, Nesnidal et al. 2013 | |||||