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Jenkinsina columbiana
Taxonomy
Guembelitria columbiana was named by Howe (1939). It is not extant.
It was recombined as Jenkinsina columbiana by Jenkins et al. (1998).
It was recombined as Jenkinsina columbiana by Jenkins et al. (1998).
Synonymy list
| Year | Name and author |
|---|---|
| 1939 | Guembelitria columbiana Howe |
| 1998 | Jenkinsina columbiana Jenkins et al. p. 67 |
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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.
†Jenkinsina columbiana Howe 1939
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D.G. Jenkins et al. 1998 | Test free, small, triangular shaped outline, with an apical angle of 62" and a lobulate periphery. Wall calcareous, microperforate, pustular. Chambers globular, spherical in out- line, coiled triserially, with about nine forming the test, increasing rapidly in size. Sutures fairly deep. Umbilicus open. Aperture a low arch at base of final chamber, with a distinct irregular flanged lip. Length of holotype recorded by Howe (1939) as 150 pm. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Collections
No collection or age range data are available