![]() kadabba somehow related to Orrorin tugenensis and Sahelanthropus tchadensis, two earlier human species? DId bipedalism independently develop in the Ardipithecus lineage? Or is Ar.kadabba walked upright, what was its gait like? kadabba’s upright walking comes from an single toe bone that dates to 5.2 million years old and was found 10 miles away from the other Ar. kadabba routinely bipedal? So far, the evidence for Ar. We don’t know everything about early humans-but we keep learning more! Paleoanthropologists are constantly in the field, excavating new areas with groundbreaking technology, and continually filling in some of the gaps about our understanding of human evolution.īelow are some of the still unanswered questions about Ardipithecus kadabba that may be answered with future discoveries: Based on these teeth, paleoanthropologists Yohannes Haile-Selassie, Gen Suwa, and Tim White allocated the fossils in 2004 to a new species they named Ardipithecus kadabba (‘kadabba’ means ‘oldest ancestor’ in the Afar language). The dental wear patterns confirmed the early human fossils were unique and not a subspecies of A. In 2002, six teeth were discovered in the Middle Awash at the site Asa Koma. Faunal (fossil animal) evidence from the site indicated that the early humans there lived in a mixture of woodlands and grasslands, and had plenty of access to water via lakes and springs. One of the specimens, a toe bone, is dated to 5.2 million years old this fossil has features of bipedal walking. The fossils-which also included hand and foot bones, partial arm bones, and a clavicle (collarbone)-were dated to 5.6–5.8 million years old. But 11 specimens from at least 5 individuals later, Haile-Selassie was convinced he had found a new early human ancestor. When he found a piece of lower jaw lying on the ground in the Middle Awash region of Ethiopia 1997, paleoanthropologist Yohannes Haile-Selassie didn’t realize that he had uncovered a new species. Science, Religion, Evolution and Creationism: Primer.Members Thoughts on Science, Religion & Human Origins (video).Teaching Evolution through Human Examples.Digital Archive of Ungulate and Carnivore Dentition.Adventures in the Rift Valley: Interactive.Smithsonian National Museum of Natural History The Smithsonian Institution's Human Origins Program Main Menu
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