Archaeologists and paleontologists from universities in Spain, Israel, and Gibraltar reported that common techniques of manufacturing stone tools using animal bones developed in widely geographically separated cultures in the earliest known stone tools ever discovered in the Oct. 11, 2013, edition of the journal Public Library of Science.
Stone tools manufactured using bone found in the Bolomor Cave in Spain and the Qesem Cave in Israel display an unusual similarity in concept, construction, and the methods of manufacture. The bone and tool artifacts from the Bolomor Cave were dated from 350,000 to 125,000 years of age. The bone and tools from the Qesem Cave were dated to between 420,000 and 200,000 years ago.
Both sites display several levels of fossil remains and demonstrate an increasing sophistication in tool making technology over time. Technological improvements in tool making techniques show a similar pattern in both sites in roughly the same time frame.
The possibility that the two cultures could have been in communication and participated in technology transfer at this period of history is remote and deemed impossible by the researchers.
Over time early human ancestors and early humans developed tool manufacturing techniques using bone and stone that is very similar in the choice of stone and the selection of the type of bone to be used for specific tools.
The discovery argues for an independent development of tool making technology in early man and a similarity in the development of the mental capacity to conceive a highly skilled tool making operation in groups of early men that never came in contact with each other.