Eochelysipus horni, a new vertebrate trace fossil from the Tournaisian Horton Bluff Formation, Nova Scotia
Bibliographic record
Abstract
A new vertebrate trackway is described from the coastal-marine sequence at Blue Beach and Horton Bluff, Nova Scotia. Eochelysipus horni ichnogen. et ichnosp. nov., features a wide trackway, low pace angle, elongate anteriorly oriented digital scrape marks, hands slightly interior to the trackway, and five-toed hind limbs. It is probably that of a parareptile and a close ancestral form to turtles; the trackway was impressed on firm mud. Present nearby at the same stratigraphic level is a topotype of Peratodactylopus bishopi ichnogen. et ichnosp. nov., a trackway of a captorhinomorph reptile discovered here in 1974. Elsewhere at Blue Beach a large enigmatic trackway (Baropezia ichnosp.?) attests to the wide range of tetrapod morphologies present in these Tournaisian sediments. The assemblage of fossils, palaeoichnological and osteological alike, highlight the importance of this locality for revealing details of Earth's early air breathing community at the Devonian-Mississippian transition.
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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) | 0.004 | 0.003 |
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; both teacher heads agree on what is shown here.
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".