These methods are widely used in the identification of raw material sources for the production of stone tools. It may be said to represent the long-term behavior of the system. The earliest period of the Mesozoic era, spanning the time between 248 and 213 million years ago. The name Triassic refers to the threefold division of rocks of this age in Germany. Unlike bands, tribes are usually settled farmers, though they also include nomadic pastoral groups whose economy is based on exploitation of livestock.
Individual communities tend to be integrated into the larger society through kinship ties.
This Archaeology on the Net Web Ring site is owned by Jeff Iverson .