Jardamarekia Frýda, Blodgett, Lenz & Frýdová, 2011, gen. nov.
Bibliographic record
Abstract
Jardamarekia gen. nov. Type species: Jardamarekia enigma sp. nov. from middle Early Devonian (Pragian) age strata of the Road River Formation in the Royal Creek area, Yukon Territory, Canada (64.8° N, 135.2° W). Diagnosis. Medium-sized limpet shell (maximal shell diameter about 26 mm) with rounded apertural outline; apex overhanging, apex position at half of shell height; maximum shell height about half of shell length; shell slightly wider than high; shell ornamentation consists of strong collabral and slightly adapically curved ribs; height of ribs about double that of their width; space between ribs ornamented by radial threads, intersecting with collabral ribs to form distinct, regular, reticular pattern. Differences. Jardamarekia gen. nov. resembles Ladamarekia from the Early Devonian Pragian strata of the Prague Basin in its shell ornamentation, but is easily distinguished by the shape and size of its shell. The type and only known species of Ladamarekia, L. miranda has a much higher shell than J. enigma (Fig. 2). Also the expansion rate of the shell in the former species is much slower than in J. enigma. The shells of the latter species are about four times larger than those of L. miranda. The new genus also resembles the type and only known species of genus Pilinopsis, P. eminens (Perner, 1903). Because only a single shell of the latter species is known (see Horný 1962: p. 10), knowledge of its shell features is limited. Jardamarekia differs from Pilinopsis in having a higher shell (because of faster expansion rate of its shell), protruding shell apex, much thicker shell and a very distinct shell ornament (compare figures 6–8, pl. III, in Horný 1962 with Fig. 2). Etymology. Jardamarekia (femininum), in honor of Jaroslav Marek, Czech paleontologist and teacher at Charles University (Prague).
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.002 | 0.003 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.007 | 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".