Palaeobiological features of the coralomorph <i>Amsassia</i> from the Late Ordovician of South China
Bibliographic record
Abstract
Lee, M., Elias, R.J., Choh, S.-J. & Lee, D.-J., 25 May 2018. Palaeobiological features of the coralomorph Amsassia from the Late Ordovician of South China. Alcheringa 43, 18–32. ISSN 0311-5518.Amsassia yushanensis sp. nov. occurs in the Late Ordovician Xiazhen Formation at Zhuzhai, Jiangxi Province of southeastern China. This species is characterized by typical phacelocerioid organization of modules comparable with the other Amsassia species described in recent literature. Bipartite fission, in which a parent module divided into two parts, is by far the most common type of increase in this species; tripartite and quadripartite types of axial fission do occur but are relatively uncommon. Processes of module division are similar to those of A. shaanxiensis and A. koreanensis, and also occurred in tetradiids. In A. yushanensis, restoration of coralla was occasionally accompanied by recovery of a damaged or injured module or group of modules probably following an influx of sediment, as observed in some favositoid corals. Amsassia superficially resembles Lichenaria, a representative genus of the most primitive stock of tabulate corals of Ordovician age, and has likely been mistakenly identified as Lichenaria in the North China Platform. Available information suggests that the validity of a reported occurrence of Lichenaria in the South China Platform is also questionable.Mirinae Lee [mirinae.lee@kopri.re.kr] Division of Polar Earth-System Sciences, Korea Polar Research Institute, 21990, Incheon, Republic of Korea; Robert J. Elias [Robert.Elias@umanitoba.ca] Department of Geological Sciences, University of Manitoba, Winnipeg, R3T 2N2, Canada; Suk-Joo Choh [sjchoh@korea.ac.kr] Department of Earth and Environmental Sciences, Korea University, Seoul, 02841, Republic of Korea; Dong-Jin Lee [djlee@anu.ac.kr] Department of Earth and Environmental Sciences, Andong National University, Andong, 36749, Republic of Korea and College of Earth Sciences, Jilin University, Changchun 130061, PR China.
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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 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".