Early diverging asterids of the Late Cretaceous: <i>Suciacarpa starrii</i> gen. et sp. nov. and the initial radiation of Cornales
Bibliographic record
Abstract
Two permineralized cornalean fruits from the Campanian of the state of Washington in the northwestern United States were studied using the cellulose acetate peel technique. One specimen was reconstructed three-dimensionally using ImageJ software. Fruits are ellipsoidal and consist of valvate endocarps. Valves are restricted to the apical third of the endocarp. Endocarps are tetralocular and each locule is crescent-shaped in cross section. The valve tissue consists of isodiametric sclereids and secretory cavities. Septae are composed of transversely elongated sclereids and secretory cavities. In each septum there are roughly two rows of vascular bundles that extend the length of the fruit. There is one apically attached seed per locule. These fossil fruits display a unique mosaic of characters indicative of Cornaceae, Nyssaceae, Davidiaceae, and Mastixiaceae, but not conforming to any one of these extant families. Therefore, they are assigned to a new genus and species within Cornales, Suciacarpa starrii gen. et sp. nov. The novel combination of characters of Suciacarpa sheds light on the early evolution of Cornales and supports previous phylogenetic hypotheses.
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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".