Katian (<scp>U</scp>pper <scp>O</scp>rdovician) conodonts from <scp>W</scp>ales
Why this work is in the frame
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Bibliographic record
Abstract
Abstract Middle and upper K atian conodonts were previously known in the B ritish I sles from relatively small collections obtained from a few localities. The present study is mainly based on 17 samples containing more than 17 000 conodont elements from an approximately 14‐m‐thick succession of the S holeshook L imestone F ormation in a road cut near W hitland, S outh W ales, that yielded a diverse fauna of more than 40 taxa. It is dominated by representatives of A morphognathus , A phelognathus/ P lectodina and E ocarniodus along with several coniform taxa. Representatives of D ecoriconus , I storinus and S agittodontina are reported from the O rdovician of UK for the first time. The fauna is a typical representative of the B ritish P rovince of the A tlantic R ealm and includes a mixture of taxa of N orth A merican, B altoscandic and M editerranean affinities along with pandemic species. Based on the presence of many elements of A morphognathus ordovicicus and some morphologically advanced specimens of A morphognathus superbus , the S holeshook L imestone F ormation is referred to the lower A . ordovicicus Z one. Most of the unit is also coeval with Z one 2 of the C autleyan S tage in the B ritish regional stage classification, and stage slice K a3 of the middle K atian S tage in the global stratigraphical classification, an age assignment consistent with data from trilobites, graptolites and chitinozoans. The unusually large collection of M elements of A morphognathus provides insight into the complex morphological variation in this element of some K atian species of this genus. The S holeshook conodont fauna is similar to those of the C rûg and B irdshill limestones, but differs in several respects from the slightly older ones from the C aradocian type area in the W elsh B orderland. Although having some species in common, the S holeshook conodont fauna clearly differs from coeval B altoscandic faunas and is even more different in composition compared with equivalent N orth A merican M idcontinent faunas.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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 it