Ardipithecus ramidus now reveals that the early hominid evolutionary trajectory differed profoundly from those of our ape relatives from our clade’s very beginning. Ardipithecus ramidus may have walked upright. The foot bones in this skeleton indicate a divergent large toe combined with a rigid foot – it's still unclear what this means concerning bipedal behavior. The size and shape of the canine suggest to scientists that Ardipithecus ramidus was a hominin. The 4.4 million-year-old hominin partial skeleton attributed to Ardipithecus ramidus preserves a foot that purportedly shares morphometric affinities with monkeys, but this interpretation remains controversial. kadabba is from Ethiopia; it is the earlier chronospecies of Ar. A. ramidus, unlike modern hominids, has adaptations for both walking on two legs and life in the trees (arboreality).However, it would not have been as efficient at bipedality as humans, nor arboreality as non-human great apes. Brain. Did ardipithecus ramidus use tools? According to the first description, these fossils are close to the common ancestor of chimps and humans. Ardi was also discovered in Ethiopia, just 40 miles from the site where scientists found Lucy in 1974. Key physical features. 2011-02-26 22:55:08 2011-02-26 22:55:08. Originally described as one of the earliest ancestors of humans after they diverged from the main ape lineage, the relation of this genus to human ancestors and whether it is a hominin is now a matter of debate. Your settings will be remembered on the same browser and computer. Originally described as one of the earliest ancestors of humans after they diverged from the main ape lineage, the relation of this genus to human ancestors and whether it is a hominin is now a matter of debate. similar to modern chimpanzees; Limbs. Group of Ardipithecus ramidus skull and postcranials. †Ardipithecus ramidus Ardipithecus is a genus of an extinct hominine that lived during Late Miocene and Early Pliocene in Afar Depression , Ethiopia . 326, Issue 5960, pp. †Ardipithecus ramidus Ardipithecus is a genus of an extinct hominine that lived during Late Miocene and Early Pliocene in Afar Depression , Ethiopia . Ardipithecus ramidus, a hominin dated at 4.5 Ma, is thought to be an erect bipedalist (Lovejoy, 2009). Ardipithecus kadabba was bipedal (walked upright), probably similar in body and brain size to a modern chimpanzee, and had canines that resemble those in later hominins but that still project beyond the tooth row. Our New Oldest Cousin - Ardi: In 2009, scientists identified a distant cousin of Lucy's and named her Ardi, which is short for Ardipithecus Ramidus. Ardipithecus ramidus is a species of australopithecine from the Afar region of Early Pliocene Ethiopia 4.4 million years ago (mya). Ardipithecus ramidus The most primitive hominid yet found, this species has more chimpanzee-like features than any other human ancestor.
The fossil find was dated on the basis of its stratigraphic position between two volcanic strata.