M 99 Avicula decussata, Muenst.
| 分類 | Animals: Mollusca: Mollusca Proper: Conchifera: |
| 年代 | Mesozoic Triassic Upper Trias: Keuper Marl: |
| 産地 | St. Cassian Tyrol. |
| 文献 | Department of Science, Tokio-Daigaku, 1881: Triassic formation. Catalogue of Histrical Geology. Mesozoic., pp. 1–10. Department of Science, Tokio-Daigaku. |
