| Budget Amount *help |
¥23,790,000 (Direct Cost: ¥18,300,000、Indirect Cost: ¥5,490,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2014: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
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| Outline of Final Research Achievements |
During the origin of the mammals from the ancestral mammal-like reptile, the number of the skull elements decreased from about 40 to 28. More than ten bones have been regarded to be completely lost in the mammalian linage. However, recent studies pointed out the possibility that some bones that were thought to be lost are still present in extant mammals. We hypothesized that the bones that were thought to be lost are still present in extant mammals, particularly during fetal period, and that subsequent fusions obscures the presence of some bones. In this project, we addressed this hypothesis through combing paleontology and developmental biology.
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