Lower Carboniferous sponges from the Craven Reef Belt of North Yorkshire
Bibliographic record
Abstract
SUMMARY Fossil sponges are significant elements in framework facies of Late Visean Cracoean reefs of northern England. In the Craven Reef Belt (North Yorkshire), lithistid demosponges, including Scheiia castletonense (Wolfenden 1959), Haplistion carbonaria (Wolfenden 1959) and Haplistion mega sp. nov., occur along with the less abundant, sphinctozoid demosponge Sollasia ramosa sp. nov. in this facies. Scheiia castletonense is an irregular globose to mound-shaped tricranocladinid hindiid sponge with irregular secondary branchlike growths in which the canal and skeletal structure are continuous with those of the globular part of the sponge. Both species of Haplistion are rhizomorinid lithistid sponges. Haplistion mega is a lobate sponge characterized by moderately coarse skeletal tracts that are relatively far apart, in contrast to the fine tracts and closer spacing in the more common globose to subspherical Haplistion carbonaria . The aporate ‘sphinctozoan’ Sollasia ramosa, commonly appears in the available sections as isolated spherical chambers because of its relatively loose branching habit and the beadlike to moniliform series of spherical chambers in each branch.
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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 | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.005 | 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".