Second known occurrence of the early Paleocene plesiadapiform <i>Pandemonium</i> (Mammalia: Primates), with description of a new species
Bibliographic record
Abstract
Pandemonium hibernalis sp. nov., from a middle? Puercan (earliest Paleocene) locality in the upper Scollard Formation, Wintering Hills, southern Alberta, represents the second discovered occurrence of the enigmatic plesiadapiform primate Pandemonium Van Valen and the first from Canada. The holotype of Pandemonium hibernalis is the only known specimen of Pandemonium documented by multiple teeth from a single individual. Pandemonium hibernalis closely resembles the type species Pandemonium dis from Purgatory Hill, middle–late Puercan, Tullock Formation, Montana, but differs in having wider, more bunodont lower molar crowns and a more expanded posterior talonid lobe of m3, specializations suggesting enhanced capacity for crushing and grinding of soft food materials during mastication. Pandemonium hibernalis joins other recent discoveries in Alberta and elsewhere in the North American Western Interior in documenting a moderate radiation of basal plesiadapiforms that evolved unexpectedly early during primate evolution.
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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 | 0.001 | 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".