<i>Perissopyge</i>(Trilobita) from the lower Cambrian (Series 2, Stage 4) of North America and Greenland
Why this work is in the frame
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Bibliographic record
Abstract
Abstract The distinctive trilobite Perissopyge phenax was originally described from the Henson Gletscher Formation (Cambrian Series 2, Stage 4) of central North Greenland and reported from the Sekwi Formation of Yukon Territory, Canada. This latter material is illustrated herein for the first time. Perissopyge phenax is also currently described from the Paralleldal Formation of Peary Land, North Greenland, some 100 km east of the type locality, where overlying strata correlate with the middle–upper Toyonian Stage of Siberia (Cambrian Stage 4). Perissopyge triangulata, from the Harkless Formation (Cambrian Stage 4) of Nevada, is also discussed and tectonic deformation of the type suite is recognized. An indeterminate species of Perissopyge is identified in the Ella Island Formation of North-East Greenland. The Ella Island Formation yields Olenellus hanseni, which is possibly synonymous with O. cf. truemani from the Henson Gletscher Formation. Together, these occurrences enhance stratigraphical correlation between central North Greenland and North-East Greenland and suggest some utility for Perissopyge in correlation of the lower half of the Laurentian Cambrian.
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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) | 0.001 | 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 it