Wednesday, December 9, 2009

A New Homo Erectus Endocast From China (Zhoukoudian V)

A newly published paper, A new Homo erectus (Zhoukoudian V) brain endocast from China, by Wu et al. (2009) in Proceedings of The Royal Society B is available online for free. Here's the abstract:

A new Homo erectus endocast, Zhoukoudian (ZKD) V, is assessed by comparing it with ZKD II, ZKD III, ZKD X, ZKD XI, ZKD XII, Hexian, Trinil II, Sambungmacan (Sm) 3, Sangiran 2, Sangiran 17, KNM-ER 3733, KNM-WT 15 000, Kabwe, Liujiang and 31 modern Chinese. The endocast of ZKD V has an estimated endocranial volume of 1140 ml. As the geological age of ZKD V is younger than the other ZKD H. erectus, evolutionary changes in brain morphology are evaluated. The brain size of the ZKD specimens increases slightly over time. Compared with the other ZKD endocasts, ZKD V shows important differences, including broader frontal and occipital lobes, some indication of fuller parietal lobes, and relatively large brain size that reflect significant trends documented in later hominin brain evolution. Bivariate and principal component analyses indicate that geographical variation does not characterize the ZKD, African and other Asian specimens. The ZKD endocasts share some common morphological and morphometric features with other H. erectus endocasts that distinguish them from Homo sapiens.

Tim Jones from Anthropology.net has a great write up about the paper, A New Homo erectus (Zhoukoudian V) Brain Endocast From China – Free to Access.

2 comments:

zacharoo said...

Thanks for posting this, I had no idea!

Raymond Ho, FCD said...

Anytime for you Zacharoo. :3