Distribution and variability of Nilssonia serotina Heer (Cycadales) in the Cretaceous and Paleogene floras of northern Pacific Region
Bibliographic record
Abstract
Variability of Nilssonia serotinaleaves was studied by the material from the Sakhalin, from the Maastrichtian deposits of the Kakanaut Formation (Koryak Upland), the upper Albian-lower Turonian deposits of the Krivorechenskaya Formation (Anadyr River Basin) and the Santonian-upper Campanian deposits of the Chignik Formation (Alaska). Type material of Nilssonia serotina Heer from thе Santonian deposits of upper part of the Arkovo Formation of Sakhalin restudied for the first time. This collection is stored in Komarov Botanical Institute. A lectotype was selected, and an extended specimen diagnosis was defined. Leaves of N. serotina are varied from nearly entier with rare dissections, to those having numerous triangular or trapezoidal segments. Distribution of Nilssonia serotina from the Albian to the Paleoсеne was revealed. This species was distributed on the Sakhalin, Northeastern Russia, Western Canada, Alaska and North Dakota (USA).
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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 | 0.000 |
| 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".