Papacrinus avignonensis Roux & Philippe 2021, n. gen., n. sp.
Bibliographic record
Abstract
Papacrinus avignonensis n. gen., n. sp. Fig. 12D–F. Type material. A single isolated nodal as holotype (MHNL 20.062726). Etymology. From Avignon (reference to the type locality). Diagnosis. As in description. Type stratum. Late Burdigalian. Type locality. Place du Palais des Papes in Avignon. Description. Nodal with subcircular to pentalobate facets, H: 1.43 mm, D: 4.65 mm, H/D 0.31, identical symplexy on each facet (Fig. 12D–E) with pyriform to triangular closed petaloid zones, 12 Cr/PZ of variable size including 6 marginal ones, weak crenularium relief, massive protuberance curved proximally prolonging PZ (Fig. 12E); deep, subcircular cirrus sockets much lower than the nodal height, nearly tangent to the distal N facet border, with two strong triangular culminae (Fig. 12F). Remarks. The symplexial crenularium of Papacrinus avignonensis n. gen. n., sp. is of balanocrine-type (see Fig. 2D). Such side protuberances are unknown in extant and fossil Isocrinida. The particular morphology of this nodal justifies the creation of a new genus. Its size and relative thickness suggest that it belongs to the distal stalk of a young individual. The absence of a cryptosymplexy is usually a paedomorphic character of the proximal nodals without phylogenetic significance. It is retained in the distal stalk of Proisocrinus. In this genus, symplexies differ from those of Papacrinus n. gen. in having always open PZ; moreover, rudimentary cirri are restricted to proxistele and in mid to distal stalk there are only nudinodals (Bourseau et al. 1991). Pending new discoveries allowing a more complete description, the symplexial characters lead us to place Papacrinus n. gen. provisionally in the subfamily Balanocrininae. Occurrence. Only known from Avignon (Palais des Papes), Late Burdigalian.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.011 | 0.004 |
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".