A new species of<i>Armigatus</i>(Clupeomorpha, Ellimmichthyiformes) from the Late Cretaceous of Morocco, and its phylogenetic relationships
Bibliographic record
Abstract
A new species of the genus Armigatus is described from the Cenomanian/early Turonian Akrabou Formation of Morocco. Similar to other ellimmichthyiforms, Armigatus oligodentatus, sp. nov., has parietals in contact with each other along the midline, has a beryciform foramen in the anterior ceratohyal, and lacks the recessus lateralis. The new species is placed in the genus Armigatus based on the incomplete predorsal series of heart-shaped scutes with rounded and smooth posterior border. However, this new species differs from the other known members of the genus in the lack of teeth on the parasphenoid and endopterygoid bones. This is the first report of a species of Armigatus from southeastern Morocco; previously, the genus was known only from the Late Cretaceous deposits of the eastern part of the Tethys. Therefore, Armigatus oligodentatus sp. nov. extends the distribution of the genus across the Tethys Sea and provides valuable information about the evolutionary history and paleoecology of the Ellimmichthyiformes.http://zoobank.org/urn:lsid:zoobank.org:pub:FD65FEA4-E219-4892-8AA4-6254E60EE5DBSUPPLEMENTAL DATA—Supplemental materials are available for this article for free at www.tandfonline.com/UJVPCitation for this article: Vernygora, O., and A. M. Murray. 2015. A new species of Armigatus (Clupeomorpha, Ellimmichthyiformes) from the Late Cretaceous of Morocco, and its phylogenetic relationships. Journal of Vertebrate Paleontology. DOI: 10.1080/02724634.2015.1031342.
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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) | 0.000 | 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 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".