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Sphenorhynchia varicostata
Taxonomy
Sphenorhynchia varicostata was named by Cooper (1989). It is not extant. Its type locality is Al Jurayfah, S1485, which is in a Bajocian shallow subtidal limestone in the Dhruma Formation of Saudi Arabia.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1989 | Sphenorhynchia varicostata 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.
†Sphenorhynchia varicostata Cooper 1989
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 19.8 | 17.5 | 22.7 | 19.8 | 2.36 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||