| Budget Amount *help |
¥43,940,000 (Direct Cost: ¥33,800,000、Indirect Cost: ¥10,140,000)
Fiscal Year 2022: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2021: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2020: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2019: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2018: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
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| Outline of Final Research Achievements |
The paleobiological record of 12 to 7 million years ago (Ma) is crucial to the elucidation of African ape and human origins, but few fossil assemblages of this time period are known from sub-Saharan Africa. We refined the chronology of the 10 to 7 Ma Chorora Formation, Ethiopia, and demonstrated that the age of the Chororapithecus-bearing sediments is 7.9 Ma. We expanded the Chororapithecus and associated fossil assemblages by excavation and survey, and evaluated the entire Chororapithecus fossil assemblage. The available evidence suggests that Chororapithecus, Nakalipithecus and Ouranopithecus form a clade, and that this clade is the stem taxon of either the Gorilla/Pan/human or Gorilla clade.
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