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Guembelina crinita
Taxonomy
Guembelina crinita was named by Glaessner (1937). It is not extant.
It was recombined as Chiloguembelina crinita by Fraass et al. (2024).
It was recombined as Chiloguembelina crinita by Fraass et al. (2024).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1937 | Guembelina crinita Glaessner |
| 2024 | Chiloguembelina crinita 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.
†Guembelina crinita Glaessner 1937
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M.F. Glaessner 1937 | Test small, built up with about 10-15 spherical or oval-shaped, distinct, separated chambers. The spire of the initial chambers in existing specimens is not distinctly recognizable. The ratio of chamber width to the length varies strongly. The largest diameter of the last chamber is offset from the biserial plane. Consequently, the last chamber diagonally overlies the previous one, the median suture on both sides are not opposite each other and the test appears thereby somewhat distorted. The aperture opens not in the usual case towards the edge of the test, but in a direction which lies between the edge and the side of the test. In extreme cases, it is directed even along the suture of the last chamber in side view. The aperture is moderate in width, but high, half rounded and enclosed along the margin. The test surface in many specimens is covered by fine granulations, but in spite of their minuteness especially on the periphery, [there are] distinctly visible sharp tiny protuberances. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Collections (16 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Danian | Libya | Chiloguembelina crinita (77235) | |
| Danian | Egypt | Chiloguembelina crinita (57461 57462 57463 57464 57465 57466 57467 57468 57470 57471 57472 57473 57474 57475) | |
| Thanetian | Peru | Chiloguembelina crinita (112144) |