Further reading
- Vickers-Rich, Patricia & Rich, Thomas Hewett (1993); Wildlife of Gondwana. Reed. ISBN 0-7301-0315-3
 | This article about a specific stratigraphic formation in Japan is a stub. You can help Wikipedia by adding missing information. |
| Coordinates | 33°59′49″N 130°48′55″E / 33.9970°N 130.8153°E |
|---|---|
| Composition | |
| Palaeontological Formation | |
The Yamaga Formation is a palaeontological formation located in Japan. It dates to the Upper Oligocene period.
| This article about a specific stratigraphic formation in Japan is a stub. You can help Wikipedia by adding missing information. |