A theropod and sauropod track assemblage from the Lower Jurassic of Guizhou, China
Bibliographic record
Abstract
The newly discovered Maoshajing tracksite in the Lower Jurassic Longtoushan Group of Guizhou Province, China is dominated by well-preserved medium-sized theropod tracks of the Grallator-Eubrontes plexus type, and associated with a few sauropod tracks. This saurischian dominated ichnofauna is typical of the Lower Jurassic biochron of China and elsewhere. It is also consistent with the sparse body fossil record, making it a type 2a deposit in which tracks are more abundant, and therefore also more important in providing a useful census of the tetrapod fauna. It is argued that small tracksite surfaces are more useful in ‘capturing’ (registering) evidence of small and potentially more active theropod movements than the activity of larger saurischians (sauropodomorphs) which may have been less abundant and less active in areas of any given size.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.003 |
| 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".