A New Fossil Flower of the Genus Vouarana (Sapindaceae) in Amber from the Dominican Republic
Bibliographic record
Abstract
Vouarana hispaniolae (Sapindaceae) is described as a new fossil flower in Dominican Republic amber. The flower is functionally staminate and is characterized by an actinomorphic corolla with 5 distinct, imbricate sepals that are ciliate on their margins, and closely appressed to surface of the receptacle; petals presumable 5, two partly visible are rhombic to triangular in shape; stamens 8, outstretched, filaments bearing thick setae at base; anthers square, basifixed, some retuse at apex, dehiscing via longitudinal slits, central pistillode short, setose; extra-nectary disc entire; pollen trigonous, glabrous and smooth. The fossil species differs from the two extant species of Vouarana that range from Costa Rica to northern Brazil by possessing a uniform covering of bristly setae over the entire receptacle, appressed sepals and square basifixed anthers. This specimen represents the first fossil flower of the Sapindaceae from the Neotropics.
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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".