(Q015) Which of the pre-australopithecines was found outside of East Africa?

Question

BlackTom AI · Accepted Answer

The question asks which pre-australopithecine was found outside of East Africa, so we need to map each candidate to its geographic discovery site.
Option 1: Sahelanthropus tchadensis. This species was discovered in Chad, which is located in Central Africa and well outside the East African region. Therefore, this choice satisfies the geographic criterion of 'outside East Africa.'
Option 2: Ardipithecus kadabba. Fossils of this species come from the Middle Awash region in Ethiopia, which is part of East Africa. Thus, this option does not meet the 'outside East Africa' condition.
Option 3: Orrorin tugenensis. Fossils were found in the Tugen Hills of Kenya, again in East Africa. This makes it incorrect with respect to the geographic requirement.
Option 4: Ardipithecus ramidus. Like Ardipithecus kadabba, this species is associated with Ethiopia in East Africa, not outside it. Therefore, it does not fit the criterion.
In summary, the only option whose discovery site lies outside East Africa is Sahelanthropus tchadensis, while the others are tied to East African localities.

(Q015) Which of the pre-australopithecines was found outside of East Africa?单项选择题

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