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Record W3129724535 · doi:10.7203/sjp.23.2.20402

Laveineopteris polymorpha FROM THE lower Westphalian (Langsettian) “fern ledges” at Saint John, new brunswick, Canada, and comparison with Laveineopteris hollandica from Europe

2021· article· en· W3129724535 on OpenAlexfundaboutno aff
Robert H. Wagner

Bibliographic record

VenueSpanish Journal of Palaeontology · 2021
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicFern and Epiphyte Biology
Canadian institutionsnot available
FundersMcGill University
KeywordsFernType localitySAINTBiologyGeographyBotanyProvenanceWestphalian sovereigntyEcologyArchaeologyTaxonomy (biology)PaleontologyHistoryArt history

Abstract

fetched live from OpenAlex

A documentation is presented of the pteridosperm (?) foliage species Laveineopteris polymorpha (Dawson, 1862) comb. nov. from its type locality at Saint John, New Brunswick. This Canadian species is also present in the United States and in the British Isles. The similar species Laveineopteris hollandica (Stockmans, 1933) Cleal & Shute, 1995, of European provenance, is discussed for detailed comparison. Lists of synonymy are provided for both species. These are commented on in detail. The stratigraphic and geographic distribution of these two species is discussed as well.

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 imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.073
Threshold uncertainty score0.146

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0050.005
Science and technology studies0.0040.001
Scholarly communication0.0010.000
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.001

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.

Opus teacher head0.012
GPT teacher head0.199
Teacher spread0.187 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations8
Published2021
Admission routes2
Has abstractyes

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Same venueSpanish Journal of PalaeontologySame topicFern and Epiphyte BiologyFrench-language works237,207