Macroflora, paleogeography, and paleoecology of the Upper Cretaceous (Turonian?–Santonian) Saanich Member of the Comox Formation, Saanich Peninsula, British Columbia, Canada
Bibliographic record
Abstract
Morphotypes of plant macrofossil assemblages of the basal unit of the Upper Cretaceous (Turonian?–Santonian) Comox Formation, Nanaimo Group, Vancouver Island, were investigated to provide insight into the character of the macroflora, environment of deposition, and paleogeography of Vancouver Island. Three floristic assemblages were documented: one dominated by angiosperm morphotypes such as Platanus, Menispermites, and Zizyphus-like leaves; another dominated by gymnosperm morphotypes such as those synonymous with Glyptostrobus comoxensis Bell and Pseudoctenis latipennis (Heer) Seward; and a third assemblage transitional between the previous two. These assemblages suggest the Saanich Member was likely deposited in a barrier island – estuarine floodplain complex with fluvial sedimentary input. The macrofloral assemblage also includes many endemic taxa, suggesting a barrier to floral migration between the paleocontinent and the Vancouver Island precursor during the Upper Cretaceous, which supports the existence of a third floristic province in North America during the Upper Cretaceous.
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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 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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".