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Sphriganaria concentrica
Taxonomy
Sphriganaria concentrica was named by Cooper (1989). It is not extant. Its type locality is KK7, Al Bakhra, Dorsetensia Zone, which is in a Bajocian shallow subtidal limestone in the Dhruma Formation of Saudi Arabia.
Synonymy list
| Year | Name and author |
|---|---|
| 1989 | Sphriganaria concentrica Cooper |
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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.
†Sphriganaria concentrica Cooper 1989
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 10.3 |
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| Source: f = family, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||