Roanoke Times Copyright (c) 1995, Landmark Communications, Inc. DATE: THURSDAY, September 22, 1994 TAG: 9409240039 SECTION: NATIONAL/INTERNATIONAL PAGE: A-8 EDITION: METRO SOURCE: Associated Press DATELINE: NEW YORK LENGTH: Medium
The ape-man roamed woodlands about 4.4 million years ago in Ethiopia, and ``this is the first time we've seen a human ancestor in such a wooded environment,'' said Tim White of the University of California at Berkeley.
Many scientists believe humans evolved after their ancestors left the forest for grasslands, said Bernard Wood of the University of Liverpool in England, who was familiar with the discovery. The finding provides evidence that the first stages of human evolution probably happened in a more wooded environment instead, he said.
``It's not the savannah that forced us along the evolutionary road,'' White said. ``The first steps seem to have been taken in a forest habitat'' after the human lineage split from the ancestors of chimps.
White said the creature was closely related to the last ancestor shared by humans and chimps.
The fossils are about 800,000 years older than the earliest firmly established remains of Australopithecus afarensis, which had been the oldest known link to ancestors of the apes.
White and colleagues announced the discovery in today's issue of the journal Nature.
They found fossils from 17 individuals of the species they dubbed Australopithecus ramidus, including teeth, parts of a skull and lower jaw, and complete bones of a left arm.
``Ramidus'' means ``root'' in the language of the Afar people who live in the area of the discovery and contribute to the scientific work there. Scientists chose the name to recognize them.
The ramidus fossils were recovered in 1992 and 1993 about 140 miles northeast of Addis Ababa. The site is about 45 miles south of Hadar, where the most famous afarensis remains, a partial skeleton nicknamed ``Lucy,'' were found.
Researchers uncovered the ramidus fossil trove after Gen Suwa of the University of Tokyo spotted a ramidus tooth among pebbles on the desert floor in 1992.
by CNB