The first modern human being was called homo habilis , the first of the homo genus. This species developed stone tools for use in daily life. Homo habilis
means “Handy Man.” He existed from about 2.2 to 1.5 million years ago. There are earlier species related to modern man, called hominids. The images, right,
show the skull shape and probable appearance of homo habilis.
The Pre-Cambrian Period — or Eon” — accounts for about 90 percent of Earth’s history. It lasted for about four billion years until about 550 million years ago.
About 70% of the world’s landmasses were created in the Archean Era, between 3.8 and 2.5 million years ago.
Rodinia, widely recognized as the first super continent, formed during the Proterozoic Era, about 1.1 billion years ago. It is believed that the oldest human family member lived about 5.2 – 5.8 million years ago, about 3.6 million years before the first modern human (homo habilis) appeared. It was named Ardipithecus ramidus kadabba, the fossilized bones of which were discovered in 2001 in Ethiopia.
Fossilized bones of Australopithecus have been discovered in South Africa?