Diptera of the Middle Eocene Kishenehn Formation II
Bibliographic record
Abstract
Eleven new species of Diptera are reported from the middle Eocene Kishenehn Formation in northwestern Montana, USA. Belonging to 10 families, four of which (Apsilocephalidae, Keroplatidae, Opetiidae and Scenopinidae) are new to the formation, they expand the record of Kishenehn Formation Diptera to 25 families and 38 fossil species. Taxa are as follows with significance noted: Palaeoapsilocephala kishenehnensis Hauser and Greenwalt, gen. et sp. n. (Apsilocephalidae); Dilophus idanos Fitzgerald and Greenwalt, sp. n. (Bibionidae), the first fossil of the genus in the Nearctic and the oldest known fossil imago of the genus; Tmemophlebia carolinae Evenhuis and Greenwalt, sp. n. (Bombyliidae), the first fossil of the genus and the oldest fossil of the subfamily Poecilognathini; Microphorella fragilis Cumming and Greenwalt, sp. n. (Dolichopodidae), the first fossil of the genus and the first fossil parathalassiine from the Nearctic; Hoplocyrtoma eocenica Sinclair and Greenwalt, sp. n. (Hybotidae), the first fossil of the genus; Macrocera apithanos Kerr and Greenwalt, sp. n. (Keroplatidae), the first fossil species of the genus from the Nearctic; Azana akarenos Kerr and Greenwalt, sp. n. (Mycetophilidae), the first fossil of the genus in the Nearctic and the oldest known fossil of the genus; Opetia americana Amorim and Greenwalt, sp. n. (Opetiidae), the first definitive fossil of the genus and the first of its family from the Nearctic; (Psectrosciara makrochaites Amorim and Greenwalt, sp. n. and P. crassieton Amorim and Greenwalt, sp. n. (Scatopsidae); Brevitrichia messogenes Greenwalt and Winterton, sp. n. (Scenopinidae), the first fossil of the genus and, if Proratites simplex Grimaldi and Cumming, 1999 proves not to be a scenopinid, the oldest representative of the family. The bibionid species Dilophus magnus Drrenfeldt, 1968 was re-examined and designated as Bibionidae incertae sedis. In addition, two species previously assigned to Apsilocephala, Psilocephala pusilla
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 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".