Last evidence of<i>Lates</i>(Perciformes, Latinae) in the latest Miocene of the Eastern Paratethys
Bibliographic record
Abstract
An articulated series of centra from latest Miocene deposits of Ukraine is described and identified as a species of Lates. The specimen comes from a locality with an estimated age of 6.04–4.7 Ma, representing the northernmost reach of the Paratethys during the Pontian. The specimen almost certainly represents a distinct species, but because it is incomplete we do not formally name it. The specimen can be differentiated from other species of Lates by features of the centra, including the relative size of the primary lateral fossa of the second centrum, the broadened neural spine of the third centrum, and the relative position of the upper and primary lateral pits on both the fifth and sixth centra. The Ukrainian specimen documents the presence of Lates in the northern Paratethys in the latest Miocene. After this time, species of Lates persisted in freshwaters in the Mediterranean area (Israel and Africa), but are no longer found in the marine waters of the region. We suggest that latines were extirpated from the Mediterranean and Paratethys by the rapidity of the changes in salinity that occurred in the Tethys Mediterranean basin and Paratethys as a result of the Messinian Salinity Crisis.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".