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Evolution of the Hominoidea

2017· other· en· W4234213153 on OpenAlexaff
David R. Begun

Bibliographic record

VenueThe International Encyclopedia of Primatology · 2017
Typeother
Languageen
FieldEarth and Planetary Sciences
TopicEvolution and Paleontology Studies
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsDentitionPrimateDivergence (linguistics)Morphology (biology)Late MioceneOld WorldHominidaeFossil RecordTheriaPaleontologyEvolutionary biologyBiologyBiological evolutionCenozoic

Abstract

fetched live from OpenAlex

The earliest fossil evidence of the Hominoidea is found in Africa at about 26 million years ago (Ma), but molecular dating of hominoid divergence events suggests an origin as early as 30 Ma. The oldest hominoids resemble the primitive catarrhine Aegyptopithecus in dental morphology, but by about 20 Ma the dentition is more modern. Early apes, best known from Kenya between about 19 and 17 Ma, are monkey‐like in their limb proportions and cranial morphology but ape‐like in details of the hips, hands, and feet. Middle Miocene apes (17–12 Ma) are transitional, with more modern teeth but limbs that are little changed from the early Miocene. Late Miocene apes all show evidence of some degree of suspension and orthogrady, as in living apes. About 12.5 Ma, fossil evidence records the earliest known hominines (African apes and humans) in Europe and pongines (orangutans) in Asia.

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)0.002
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: none
GenreCandidate signal: Review · Consensus signal: none
Teacher disagreement score0.013
Threshold uncertainty score0.027

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.001
Science and technology studies0.0010.001
Scholarly communication0.0010.001
Open science0.0000.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0030.001

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 head0.010
GPT teacher head0.234
Teacher spread0.223 · 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
GenreReview

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

Citations1
Published2017
Admission routes1
Has abstractyes

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