Bivalve fossil from the Lower Cretaceous Tetori Group in the Kamiichi－Tateyama area, Toyama
| Jazyk: | japonština |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | 富山市科学博物館研究報告 = Bulletin of the Toyama Science Museum. 43:1-7 |
| ISSN: | 1882-384X |
| Popis: | The Kamiichi－Tateyama area is located to the east of Toyama Prefecture, central Japan. The area is occupied by the Lower Cretaceous Tetori Group (fluvial deposits) consisting of the Inotani alternation, Minamimatadani conglomerate, Wasabu alternation members, Nagaoyama and Shiroiwagawa formations, in ascending order. An indeterminable, poorly preserved bivalve fossil is newly found from sandy mudstone of the Wasabu alternation member in the area. This specimen may be useful to discuss stratigraphic correlation and sedimentary environment of the Tetori Group. 富山県中新川郡上市町の上市川第二ダム上流，小又川沿いに分布する下部白亜系手取層群和佐府互層で初めて発見された二枚貝化石について報告した．本標本は，二枚貝化石の報告が少ない富山県内の手取層群において貴重な発見である．今後，小又川周辺から二枚貝化石がさらに発見されることで，富山県の手取層群堆積時の環境がより詳細に復元されることが期待される． |
| Databáze: | OpenAIRE |
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