75.3k views
4 votes
The only preaustralopithecine found outside the East African Rift Valley is:

a. Orrorin tugenensis.
b. Ardpithecus kadabba.
c. Sahelanthropus tchadensis.
d. Ardipithecus ramidus.

User MWB
by
8.8k points

1 Answer

4 votes

Final answer:

Orrorin tugenensis is the only preaustralopithecine found outside the East African Rift Valley. It is considered a hominin due to its bipedal traits, and its discovery in 2001 provides valuable insights into human evolution.

Step-by-step explanation:

The only preaustralopithecine found outside the East African Rift Valley is Orrorin tugenensis. Orrorin tugenensis was discovered in Kenya in 2001 and is estimated to be approximately 6 million years old. It is considered a hominin due to anatomical traits suggesting bipedalism, such as the enlarged femoral head and the teeth resembling those of modern humans. This species plays a significant role in understanding human evolution and its relationship to other ancestral hominins.

User George Nguyen
by
8.1k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.