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Praeorbulina circularis
Taxonomy
Globigerinoides glomerosa circularis was named by Blow (1956).
It was recombined as Praeorbulina circularis by Fraass et al. (2024).
It was recombined as Praeorbulina circularis by Fraass et al. (2024).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1956 | Globigerinoides glomerosa circularis Blow p. 65 |
| 2024 | Praeorbulina circularis Fraass et al. |
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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.
†Praeorbulina circularis Blow 1956
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. H. Blow 1956 | Test nearly spherical, with last chamber almost globular, inflated, and embracing the earlier part of the test more than 75 per cent. Dorsal apertures of the penultimate and earlier chambers, and the apertures of the last chamber, are circular or subcircular pore-like openings. Apertures situated in the sutures between the last, penultimate and earlier chamber and not in the area of the last chamber. Sutures less deeply incised than in Globigerinoides glomerosa glomerosa. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Collections
No collection or age range data are available