The origin, ecology and reef-building contribution of Late Paleozoic Palaeoaplysina in Nunavut, Canadian Arctic Archipelago
Bibliographic record
Abstract
Palaeoaplysina was a major component of Upper Carboniferous-Lower Permian reef build-ups along northwestern Pangea, however the paleoecology and geologic contributions of this macrofossil remain poorly understood. A coarse inner and fine outer cellular skeleton suggests Palaeoaplysina was an ancestral Rhodophyte. Two palaeoaplysinid forms are identified in the Sverdrup Basin, Nunavut, Canadian Arctic, including a new anatomically simpler Moscovian-Kasimovian form. Palaeoaplysina is identified as inhabiting both the back-reef and reef front environments within the Nansen Formation at West Blind Fiord on SW Ellesmere Island. This reef complex is interpreted to have four growth stages, including a major coalesced keep-up reef phase. Palaeoaplysina is interpreted to have acted in the reef as a horizontal sediment binder, encruster, trap and hard substrate for encrustation. Russian Palaeoaplysina reefs act as major petroleum reservoirs and further understanding of the formation and distribution of these reefs is important for identifying exploration potential in the arctic.
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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".