Final answer:
Orrorin tugenensis was discovered in the Tugen Hills region of Kenya and is important for understanding early human evolution due to its anatomical traits that suggest bipedalism.
Step-by-step explanation:
The geographical location of Orrorin tugenensis is in Kenya. This species was discovered in 2001 by Martin Pickford and Brigitte Senut. Orrorin tugenensis, which dates back to approximately 6 million years ago (MYA), is believed to be a hominin due to anatomical features suggesting bipedalism, such as a larger femoral head and teeth with thick dental enamel and small, square molars. The specimens were found in the Tugen Hills region of Kenya, contributing significant insight into the early stages of human evolution.