Taxonomic re-evaluation of the Late Cretaceous serial planktonic foraminifer "Gümbelina punctulata" (Cushman, 1938) and related species
Bibliographic record
Abstract
espanolSe propone un nuevo genero, Braunella, para una linea de foraminiferos seriales planctonicos de edad Campaniense tardia-Maastrichtiense. El genero incluye dos especies: B. punctulata (Cushman, 1938) y B. brauni nov. sp., que estan caracterizadas principalmente por su test de ornamentacion que esta irregularmente reticulado. Aparentemente, este genero evoluciono en el Campaniense tardio a partir de la especie costada Heterohelix striata (Ehrenberg, 1840), y se extinguio en el limite Cretacico/Terciario. EnglishA new genus, Braunella, is proposed for a lineage of serial planktonic Foraminifera of late Campanian-Maastrichtian age. The genus includes two species, B. punctulata (Cushman, 1938) and B. brauni nov. sp., which are characterized mainly by their irregular reticulated test ornamentation. The genus seemingly evolved in the late Campanian from the costate species Heterohelix striata (Ehrenberg, 1840), and became extinct at the Cretaceous/Tertiary boundary.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".