de Heinzelin J, Clark J D, White T, Hart W, Renne P, WoldeGabriel G, Beyene Y, Vrba E
Institut Royal des Sciences Naturelles de Belgique, Rue Vautier 29, B-1000 Bruxelles, Belgium.
Science. 1999 Apr 23;284(5414):625-9. doi: 10.1126/science.284.5414.625.
The Hata Member of the Bouri Formation is defined for Pliocene sedimentary outcrops in the Middle Awash Valley, Ethiopia. The Hata Member is dated to 2.5 million years ago and has produced a new species of Australopithecus and hominid postcranial remains not currently assigned to species. Spatially associated zooarchaeological remains show that hominids acquired meat and marrow by 2.5 million years ago and that they are the near contemporary of Oldowan artifacts at nearby Gona. The combined evidence suggests that behavioral changes associated with lithic technology and enhanced carnivory may have been coincident with the emergence of the Homo clade from Australopithecus afarensis in eastern Africa.
布勒组的哈塔段是根据埃塞俄比亚中阿瓦什河谷上新世沉积露头定义的。哈塔段的年代可追溯到250万年前，已发现一种新的南方古猿物种以及目前未归类到特定物种的原始人类颅后遗骸。在空间上与之相关的动物考古遗骸表明，原始人类在250万年前就已获取肉类和骨髓，而且他们与附近戈纳的奥杜威石器是近乎同时代的。综合证据表明，与石器技术和更强的食肉行为相关的行为变化可能与东非从阿法南方古猿进化而来的人属分支的出现同时发生。
