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Divaricosta
Taxonomy
Divaricosta was named by Cooper and Grant (1969) [Sepkoski's age data: P Guad-l Sepkoski's reference number: 7]. Its type is Divaricosta squarrosa.
It was assigned to Pontisiinae by Williams et al. (2002); and to Rhynchonellida by Sepkoski (2002).
It was assigned to Pontisiinae by Williams et al. (2002); and to Rhynchonellida by Sepkoski (2002).
Species
D. squarrosa (type species), D. vagabunda
Synonymy list
| Year | Name and author |
|---|---|
| 1969 | Divaricosta Cooper and Grant p. 11 |
| 2002 | Divaricosta Sepkoski |
| 2002 | Divaricosta Williams et al. p. 1273 |
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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.
G. †Divaricosta Cooper and Grant 1969
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†Divaricosta squarrosa Cooper and Grant 1969
†Divaricosta vagabunda Cooper and Grant 1976
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 4.47 | 4.00 | 5.00 | 4.50 | 0.707 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||