Lateral views of some Hominidea crania showing possible changes through time. A mildly airorynch Proconsul may be a good ancestral morphotype for hominoid craniofacial hafting, as a similar degree of airorhynchy is also found in hylobatids (Shea 1988). Dryopithecus shares with other hominines neurocranial elongation (though this also occurs in hylobatids), the development of supraorbital tori, klinorhynchy and probably in association with the latter, a true frontoehtmoidal sinus. Modified from Kordos and Begun (2001).
- p. 932, Begun, D. (2007) Fossil Record of Miocene Hominoids