c) when one layer overlies another, the one on the bottom is more recent
d) layers on top are unlikely to have reliable, datable artifacts
e) layers on top are more important than those below
“Lucy,” found by Donald Johanson and his colleagues in Ethiopia, is the skeleton of
a) an Australopithecus afarensis, dated to about 3.18 mya
b) an Australopithecus afarensis, dated to about 5.9 mya
c) an Australopithecus robustus, dated to about 1.9 mya
d) a Homo erectus, dated to about 1.9 mya
e) a Homo erectus, dated to about 3.18 mya
Although the short occupation period at Khok Phanom Di (c. 500 years, from 2000 BC)
was disappointing for the goal of understanding early rice domestication and
cultivation, it was useful because the 154 burials represented
a) the earliest evidence for a suicide cult
b) a mass ritual killing