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Globigerina umbilicata
Taxonomy
Globigerina umbilicata was named by Orr and Zaitzeff (1971). It is not extant.
It was recombined as Globigerina (Globigerina) umbilicata by Kennett and Srinivasan (1983).
It was recombined as Globigerina (Globigerina) umbilicata by Kennett and Srinivasan (1983).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1971 | Globigerina umbilicata Orr and Zaitzeff |
| 1983 | Globigerina (Globigerina) umbilicata Kennett and Srinivasan p. 38 |
| 2020 | Globigerina umbilicata Lam and Leckie |
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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.
†Globigerina umbilicata Orr and Zaitzeff 1971
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. P. Kennett and M. S. Srinivasan 1983 | Test medium to large, low trochospiral; chambers spherical to subspherical, increasing slowly in size as added, five to six in the final whorl; sutures distinctly depressed often with a reduced final chamber (kummer-form). Surface similar to Gg. (Gg.) bulloides. Umbilicus very large, deep. Aperture large, umbilical, with a thin lip |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Piacenzian to the top of the Gelasian or 3.60000 to 1.80000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Piacenzian - Gelasian | Italy | Globigerina umbilicata (57058) |