The evolution of millet domestication, Middle Yellow River Region, North China: Evidence from charred seeds at the late Upper Paleolithic Shizitan Locality 9 site
Bibliographic record
Abstract
Charred grass seeds recovered by flotation from the late Upper Paleolithic Shizitan Locality 9 site in Shanxi province, China, are examined in relation to claims based on starch grain and phytolith analysis of early millet domestication and Neolithic plant foods in North China. Small numbers of wild millet (Paniceae tribe) grasses and goosefoot ( Chenopodium sp.) seeds provide the first specific macrobotanical evidence for the association of these important plants with people in China during the late Paleolithic. Wild Setaria and Echinochloa spp. are present between 13,800 and 11,600 cal. BP, almost 4000 years before the earliest evidence of unequivocally domesticated millet macrofossils in the Yellow River region by c. 8000–7600 cal. BP. In fact, seed evidence for the process of foxtail millet domestication in North China has not been available until now, and these are the only late Upper Paleolithic seeds ever recovered from North China. This study suggests that domestication-related traits in foxtail millet were gradually established over several millennia.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".