An overview of fossil shallow-sea osteichthyan fishes from the Kazusa Group in the middle and upper Tama River basins, Japan

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  • Miyata Shinya
    Oishi Fossils Gallery of Mizuta Memorial Museum, Josai University Educational Corporation Faculty of Science, Josai University
  • Ozaki Kaoru
    Local Museum of Akishima City
  • Fukushima Tohru
    Musashino School of Paleontology, MKJ Office
  • Taru Hajime
    Kanagawa Prefectural Museum of Natural History

Bibliographic Information

Other Title
  • 多摩川水系中・上流域に分布する上総層群から産出した浅海性硬骨魚類化石の概要
  • タマガワ スイケイ チュウ ・ ジョウリュウイキ ニ ブンプ スル カズサソウグン カラ サンシュツ シタ センカイセイ コウコツギョ ルイカセキ ノ ガイヨウ

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Description

The Plio-Pleistocene Kazusa Group, situated in the middle and upper basin of the Tama River in Northwestern Tokyo, Japan is known to have yielded various vertebrates, including both terrestrial and marine mammals as well as chondrichthyan fishes. Recently, osteichthyan fish fossils have been discovered from this stratum. Notably, marine fish fossils have been discovered in the Oyabe, Hirayama, Komiya, Oyamada, and Renkoji formations of Kazusa Group. Of these formations, the Oyabe Formation has revealed Clupeiformes and the first East Asian fossils of the Plotosidae, while the Renkoji Formation has yielded Clupeiformes, Clupeidae, Engraulidae, and the second recorded occurrence of the Mugilidae in Japan. These recent discoveries suggest that the Kazusa Group in Northwestern Tokyo has the potential to be a significant stratum for the study of Quaternary marine fossil osteichthyan fishes.

Journal

  • Fossils

    Fossils 115 (0), 5-17, 2024-03-31

    Palaeontological Society of Japan

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