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Rallacosta xystica
Taxonomy
Rallacosta xystica was named by Cooper and Grant (1976). Its type specimen is USNM 152976e, a valve (Dorsal valve), and it is not a trace fossil. Its type locality is USNM703b, Old Word Ranch, Glass Mountains, which is in a Kungurian reef, buildup or bioherm limestone in the Cathedral Mountain Formation of Texas.
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Rallacosta xystica Cooper and Grant p. 2281 figs. Pl 647, figs 38-54 |
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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.
†Rallacosta xystica Cooper and Grant 1976
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 1.00 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||