Charactoceras undefined-A Strand 1934
Bibliographic record
Abstract
Charactoceras sp. A Fig. 22C, E Material examined ESTONIA • 1 spec.; Vormsi Island, Hosholm shore; Adila Formation, Pirgu Regional Stage; GIT 878- 215. Description The specimen is a fragment of a nearly complete body chamber and one chamber of the phragmocone with a wide, reniform whorl cross section; it is 36 mm high at the aperture and 57 mm wide. At the base of the body chamber, it measures 24 mm in height and 41 mm in width. The body chamber measures ca 90–100° in length. Throughout its entire length, the greatest width of the whorl is reached between mid-flank and dorsum. On the broadly rounded ventral side, a distinct, broad, U-shaped hyponomic sinus is preserved, which has a width of 35 mm and a depth of 20 mm. Around the aperture patches of the outer shell remain, these are smooth, with distinct narrowly and irregularly spaced growth lines. The two septa at the base of the body chamber are 6 mm distant, and a septal foramen located a few millimeters from the venter is apparent, but is not well enough preserved to measure. Remarks This single fragment does not permit species level determination. The position of the siphuncle and the shape of the body chamber, and its aperture show, however, that this specimen is a fragment of a Charactoceras. Its relatively large WWI of 1.71 (see Fig. 22E) distinguishes the specimen from C. estonicum and suggests a comparison with C. hercules (Billings, 1857) from late Katian strata of Anticosti Island, Quebec (e.g., Foerste 1928c). However, with the available material a detailed comparison is impossible as the more apical parts of the phragmocone are not known.
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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 | 0.002 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.014 | 0.006 |
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".