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Record W1990318832 · doi:10.1139/e02-900

ERRATUM: A rewiew of <i>Leidyosuchus canadiensis</i> Lambe, 1907 (Archosauria: Crocodylia) and an assessment of cranial variation based upon new material: Erratum

2002· erratum· en· W1990318832 on OpenAlexaffvenue
Xiao‐Chun Wu, Anthony P. Russell, Donald B. Brinkman

Bibliographic record

VenueCanadian Journal of Earth Sciences · 2002
Typeerratum
Languageen
FieldEarth and Planetary Sciences
TopicPaleontology and Evolutionary Biology
Canadian institutionsRoyal Tyrrell MuseumUniversity of Calgary
Fundersnot available
KeywordsTaxonPaleontologyGeologyFibrous jointForamenCretaceousApex (geometry)AnatomyVariation (astronomy)Biology

Abstract

fetched live from OpenAlex

Cranial morphology of Leidyosuchus canadensis Lambe 1907 is reviewed based on previously undescribed material—seven skulls and eight mandibles. This species can be distinctively diagnosed by more than 10 derived features. New information supports the contention that L. canadensis is the sole representative of Leidyosuchus, and indicates that it is very different from the other species previously assigned to this taxon. The membership of L. canadensis within Alligatoroidea is also demonstrated by new information revealed in this study. Ontogenetic and individual variation in the cranial anatomy of L. canadensis are documented. The contact of the premaxillary–maxillary suture with the incisive foramen is not diagnostic of the taxon; rather, it exhibits individual variation. Leidyosuchus is endemic to North America. There was no faunal interchange of crocodyliforms between North America and central Asia during the last two stages of the Late Cretaceous.

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)0.001
metaresearch head score (Gemma)0.005
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.028
Threshold uncertainty score0.056

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.005
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.001
Science and technology studies0.0020.002
Scholarly communication0.0010.002
Open science0.0020.001
Research integrity0.0030.004
Insufficient payload (model declined to judge)0.0110.010

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 head0.022
GPT teacher head0.254
Teacher spread0.232 · 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 designNot applicable
Domainnot available
GenreOther

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

Citations26
Published2002
Admission routes2
Has abstractyes

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