M 4 Bunter sandstein.
| 分類 | Rocks: | 
| 年代 | Mesozoic Triassic Lower Trias: Bunter-Sandstein: | 
| 産地 | Kaiserslauten | 
| 文献 | Department of Science, Tokio-Daigaku, 1881: Triassic formation. Catalogue of Histrical Geology. Mesozoic., pp. 1–10. Department of Science, Tokio-Daigaku. | 
