Eocene actinopterygian fishes from Pakistan, with the description of a new genus and species of channid (channiformes)
Bibliographic record
Abstract
ABSTRACT A collection of fossil material from Eocene deposits of Pakistan includes remains belonging to various taxa of actinopterygian fishes. The material comes from predominantly freshwater deposits, as well as a few marine deposits, in the Kuldana Formation in the Kala Chitta Hills, and from the Chorgali Formation near Gali Jaghir, in Attock District of Punjab Province. The Kuldana and Chorgali formations are early to middle Eocene in age. Isolated bones and teeth are identified as belonging to Eotrigonodontidae, Pycnodontiformes, Amiidae, Osteoglossidae, Siluriformes (cf. Bagridae), and Perciformes, as well as unidentified Teleostei. Some of the fossils are skulls of a channiform fish, which is here described as a new genus and species, Anchichanna kuldanensis. The faunal affinities of the Indo-Pakistan area during the Eocene are not clear, with previous studies suggesting it is faunally more similar to other parts of modern Asia, others as it representing a region of endemism, or even as being similar to northern Africa. The fish material reported here indicates a relationship between the Pakistan fauna in the Eocene with that of northern Africa.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".