Ardipithecus kadabba is the scientific classification given to fossil remains "known only from teeth and bits and pieces of skeletal bones",[1] originally estimated to be 5.8 to 5.2 million years old, and later revised to 5.77 to 5.54 million years old.[2] According to the first description, these fossils are close to the common ancestor of chimps and humans. Their development lines are estimated to have parted 6.5–5.5 million years ago. It has been described as a "probable chronospecies" (i.e. ancestor) of A. ramidus. Although originally considered a subspecies of A. ramidus, in 2004 anthropologists Yohannes Haile-Selassie, Gen Suwa, and Tim D. White published an article elevating A. kadabba to species level on the basis of newly discovered teeth from Ethiopia. These teeth show "primitive morphology and wear pattern" which demonstrate that A. kadabba is a distinct species from A. ramidus.
The specific name comes from the Afar word for "basal family ancestor".[3]
^Gibbons, Ann (2009). "A New Kind of Ancestor: Ardipithecus Unveiled" (PDF). Science. 326 (5949): 36–40. Bibcode:2009Sci...326...36G. doi:10.1126/science.326_36. PMID 19797636.
^Webseite von Yohannes Haile-Selassie Archived 2015-09-20 at the Wayback Machine
^Ellis, Richard (2004). No Turning Back: The Life and Death of Animal Species. New York: Harper Perennial. pp. 92. ISBN 0-06-055804-0.
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Ardipithecuskadabba is the scientific classification given to fossil remains "known only from teeth and bits and pieces of skeletal bones", originally...
to Ardipithecus ramidus specifically. This means that Australopithecus is distinctly closer related to Ardipithecus ramidus than Ardipithecuskadabba. Cladistically...
into its own species, A. kadabba. A. kadabba is considered to have been the direct ancestor of A. ramidus, making Ardipithecus a chronospecies. The exact...
that some specimens previously labeled as Ardipithecus ramidus made up a different species, Ardipithecuskadabba. In 2015, Haile-Selassie announced another...
(7 Ma) and Orrorin tugenensis (6 Ma), followed by Ardipithecus (5.5–4.4 Ma), with species Ar. kadabba and Ar. ramidus. It has been argued in a study of...
"Bovidae". In Haile-Selassie, Yohannes; WoldeGabriel, Giday (eds.). ArdipithecusKadabba: Late Miocene Evidence from the Middle Awash, Ethiopia. University...
Ardipithicus kadabba was discovered in 1997 on the Western Side, at site Asa Koma, by Yohannes Haile Selassie and Giday WoldeGabriel. Ardipithecuskadabba is one...
including: the hominids and possible hominins, Ardi, or Ardipithecus ramidus, and Ardipithecuskadabba, see below; the Gawis cranium hominin from Gona; several...
Important hominin fossils found in the Middle Awash include: ArdipithecuskadabbaArdipithecus ramidus Australopithecus afarensis Australopithecus garhi...
"Bovidae". In Haile-Selassie, Yohannes; WoldeGabriel, Giday (eds.). ArdipithecusKadabba: Late Miocene Evidence from the Middle Awash, Ethiopia. University...
(3): 208–218. WoldeGabriel, G. (2009). Haile-Selassie, Y. (ed.). ArdipithecusKadabba: Late Miocene Evidence from the Middle Awash, Ethiopia. Berkeley:...
was needed to determine this precisely. The 5.6 million year old Ardipithecuskadabba discovered in 1997 was found in a similar terrain. Not everyone was...
member of the subtribe Australopithecina, which sometimes also includes Ardipithecus, though the term "australopithecine" is sometimes used to refer only...
5-to-4.5-million-year-old Ardipithecus and later Hominina. The classification of Sahelanthropus in Hominina, as well as Ardipithecus and the 6-million-year-old...
(2009). "Bovidae". In Haile-Selassie, Y.; WoldeGabriel, G. (eds.). Ardipithecuskadabba: Late Miocene Evidence from the Middle Awash, Ethiopia. University...
such as Sahelanthropus tchadensis and Ardipithecus ramidus, which along with low body size dimorphism in Ardipithecus and Australopithecus, suggests a reduction...
(2003), the "pre-human" or "proto-human" genera of Australopithecus, Ardipithecus, Praeanthropus, and possibly Sahelanthropus, may be placed on equal footing...
away from the discovery site of Ardipithecus ramidus, the most modern species of Ardipithecus yet discovered. Ardipithecus was a more primitive hominid,...
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