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Gomphocopris ashworthi gen. et sp. nov. (Coleoptera, Scarabaeinae, Homocoprini): An additional new Chilean fossil genus and species extinct at the Pleistocene-Holocene boundary

2024· article· en· W4400106093 on OpenAlex
Francisco Tello, François Génier, Mario Pino, Michele Rossini, José Verdú Soriano

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenuePalaeoentomology · 2024
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicScarabaeidae Beetle Taxonomy and Biogeography
Canadian institutionsCanadian Museum of Nature
FundersAgencia Nacional de Investigación y DesarrolloUniversidad Austral de Chile
KeywordsPleistoceneGenusHoloceneScarabaeinaePaleontologyEcologyGeologyGeographyBiologyZoologyScarabaeidae

Abstract

fetched live from OpenAlex

Based on male and female fossil beetle remains recorded in the Pilauco deposits (northern Chilean Patagonia), a new and extinct dung beetle genus and species from an upper Pleistocene sequence (16.4 to 12.8 kyr BP) namely, Gomphocopris ashworthi gen. et sp. nov. (Coleoptera, Scarabaeidae, Homocoprini) is described and illustrated. The morphological analysis of these fossil remains suggest that this extinct genus and species are placed into the tribe Homocoprini due to presence of supplementary carina in the lateral area in the pronotum. Moreover, this new taxon is separated from the extant Homocoprini species by the absence hypomeral carina (well developed in all extant species); cephalic horn in males with a distinct posterior projection apically (absent in the extant species), and the unique shapes and disposition of the pronotal lobes in major male and female. We suggest that this dung beetle genus and species became extinct in the late Pleistocene to early Holocene as a consequence of the drastic environmental changes, and the extinction of most of the large mammals, which were the organisms that provided feces for the development of their larvae.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.210
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0380.001

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 head0.019
GPT teacher head0.231
Teacher spread0.212 · 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