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Ardipithecus ramidus
[ ahr-duh-pith-i-kuhs ram-i-duhs, ahr-duh-puh-thee-kuhs ]
noun
- an extinct species of early hominin whose fossil remains were discovered in Ethiopia in the 1990s and have been dated at about 4.4 million years of age: evidence suggests a probable combination of bipedal and tree-climbing behavior, and some believe the species shares a human and African ape lineage, with no direct skeletal relationship to the chimpanzee.
- a fossil belonging to this species, most notably the female specimen named Ardi.
Word History and Origins
Origin of Ardipithecus ramidus1
Example Sentences
They found a remarkably complete but crushed partial skeleton they named Ardipithecus ramidus, dated to 4.4 million years ago.
“Clickbait,” said Tim D. White, a paleoanthropologist at the University of California, Berkeley, who is best known for leading the team that discovered Ardipithecus ramidus, a 4.4 million-year-old likely human forebear.
This foot evolved into a transitional foot capable of both grasping and walking, as seen in the fossil known as Ardi, a member of Ardipithecus ramidus that lived in Aramis, Ethiopia, 4.4 million years ago.
Terence Capellini, an evolutionary biologist at Harvard University, says those pelvic patterns were already emerging in early human ancestors such as the 4.4-million-year-old hominin Ardipithecus ramidus, which had slightly turned-out ilia and is thought to have at least occasionally walked on two feet.
Some of the most compelling evidence for upright walking in human ancestors comes from Ardipithecus ramidus, a female skeleton dating back 4.4m years and found in Ethiopia.
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