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Trilobatus immaturus
Taxonomy
Globigerinoides sacculiferus immatura was named by Le Roy (1939). It is not extant.
It was recombined as Globigerinoides immaturus by Kennett and Srinivasan (1983); it was recombined as Trilobatus immaturus by Spezzaferri et al. (2018).
It was recombined as Globigerinoides immaturus by Kennett and Srinivasan (1983); it was recombined as Trilobatus immaturus by Spezzaferri et al. (2018).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1939 | Globigerinoides sacculiferus immatura Le Roy pp. 263-264 figs. 19, 20, 21 |
| 1983 | Globigerinoides immaturus Kennett and Srinivasan p. 64 |
| 2018 | Trilobatus immaturus Spezzaferri 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.
†Trilobatus immaturus Le Roy 1939
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. P. Kennett and M. S. Srinivasan 1983 | Test low trochospiral, chambers spherical, three in the final whorl increasing moderately in size as added; sutures on both sides radial to gently curved, deeply depressed; surface distinctly cancellate; umbilicus narrow; primary aperture interiomarginal, umbilical with a low to medium arch; last few chambers show a single supplementary sutural apertures opposite to the primary aperture. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Middle Miocene to the top of the Early/Lower Pliocene or 15.98000 to 3.60000 Ma
Collections (64 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Miocene | Ecuador | Globigerinoides immaturus (90851) | |
| Late/Upper Miocene | Timor-Leste | Globigerinoides immaturus (141950 141951 142383 142384 142385 142386 142407 142408 142411 142412 143222 143223 143224 143225 143226 143227 143228) | |
| Late/Upper Miocene - Early/Lower Pliocene | Timor-Leste | Globigerinoides immaturus (142387 142388 142409 142410 142413 142661 142662 142663 142664 142665 142666 142667 142668 143229 143230 143231 143232 143233 143234 143235 143236 143237) | |
| Zanclean | Ecuador | Globigerinoides immaturus (90839) | |
| Zanclean | Italy (Siena) | Globigerinoides immaturus (45497) | |
| Early/Lower Pliocene - Late/Upper Pliocene | Timor-Leste | Globigerinoides immaturus (142976 142977 142979 142980 142981 142982 142986 142987 142988 142989 143238 143239 143240 143241 143242 143243 143244 143245 143246 143247 143248 143249) |