Covariance matrices supporting: An evolutionary quantitative genetic analysis of the impact of cephalopelvic disproportion on cranial and pelvic co-evolution in anthropoids

Evolutionary quantitative genetics methods are increasingly applied to studies of human skeletal evolution, with a growing emphasis on investigating postcranial evolution and the evolution of multiple skeletal elements. Here, we apply a commonly used method from evolutionary quantitative genetics, the drift-rate test, to test whether broad patterns of cranial and pelvic co-evolution within male, female, and pooled-sex samples of anthropoid primates follow those expected under the long-standing hypotheses of obstetric selection via cephalopelvic disproportion. Using interlandmark distances from the cranium and articulated pelvis from samples of four platyrrhine, four cercopithecoid, and five hominoid primate genera, we tested cranial, pelvic, and craniopelvic traits for evidence of deviation from neutral evolutionary patterns using both regression tests of within- on between-group eigenvalues and correlation tests of principal component scores. Results for analyses of shape data indicate..., Please see methods described in Cooper, M.J. and N. von Cramon-Taubadel (2025) An evolutionary quantitative genetic analysis of the impact of cephalopelvic disproportion on cranial and pelvic co-evolution in anthropoids, 188(1):e70109, American Journal of Biological Anthropology, doi: 10.1002/ajpa.70109
, , # Covariance matrices supporting: An evolutionary quantitative genetic analysis of the impact of cephalopelvic disproportion on cranial and pelvic co-evolution in anthropoids

Dataset DOI: [10.5061/dryad.z8w9ghxqb](10.5061/dryad.z8w9ghxqb)

## Description of the data and file structure

This dataset contains phenotypic variance/covariance matrices (V/CVs) derived from traits of the cranium and pelvis in thirteen primate genera: Alouatta, Aotus, Saimiri, Cebus, Trachypithecus, Macaca, Lophocebus, Chlorocebus, Hylobates, Pongo, Gorilla, Pan, and Homo. V/CV matrices are provided in .csv format.

Two datasets were used: one containing form data (raw trait data) and one containing shape data (isometrically-scaled data). 3 V/CV matrices were constructed for each form and shape dataset, containing traits from the cranium, traits from the pelvis, and a combination of traits from the cranium and pelvis. Each set of matrices was constructed at the following taxonomic levels: 1) all anthropoid gen..., ,