A new species of <i>Sorbinichthys</i> (Teleostei: Clupeomorpha: Ellimmichthyiformes) from the Late Cretaceous of Morocco
Bibliographic record
Abstract
A new species of ellimmichthyiform fish, represented by three specimens, has been recovered from deposits of the Akrabou Formation of Morocco. The new species is described in the existing genus Sorbinichthys , family Sorbinichthyidae, as Sorbinichthys africanus , sp. nov., closely related to the type species Sorbinichthys elusivo . The Ellimmichthyiformes is an extinct order of clupeomorph fishes that includes both freshwater and marine species ranging from the Early Cretaceous through the Eocene. Sorbinichthys elusivo is known from Cenomanian deposits of the eastern Mediterranean Tethys (Lebanon), whereas the new species is possibly early Turonian but more probably late Cenomanian in age, from the western Tethys (eastern Morocco). At lower taxonomic levels, the assemblage from the Akrabou Formation has a primarily Tethyan composition, exemplified by the genus Sorbinichthys, whereas supra-generic taxa found there include groups with trans-Atlantic (e.g., Sorbinichthyidae, Macrosemiidae) or near-cosmopolitan (e.g., Paraclupeidae) distributions.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 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".