M 20 Muschelkalk mergel.
分類 | Rocks: |
年代 | Mesozoic Triassic Lower Trias: Muschelkalk: |
産地 | Erkerode near Branskweig. |
文献 | Department of Science, Tokio-Daigaku, 1881: Triassic formation. Catalogue of Histrical Geology. Mesozoic., pp. 1–10. Department of Science, Tokio-Daigaku. |