@article{oai:soar-ir.repo.nii.ac.jp:00011872, author = {公文, 富士夫 and 松山, 尚典 and 中条, 健次}, journal = {化石}, month = {Nov}, note = {Latest Jurassic to Upper Cretaceous radioralian fossils from the Hidakagawa Group are newly divided into the following eight assemblages ; 1) Archaeodictyomitra apiara-Eucyrtidiellum ptyctum Assemblage (Tithonian), 2) Sethocapsa trachyostraca Assemblage (Berriasian to Valanginian), 3) Eucyrtis tenuis Assemblage (Hauterivian to Barremian), 4) Acaeniotyle umbilicata Assemblage (Aptian to early Albian), 5) Holocryptocanium barbui Assemblage (late Albian to Cenomanian), 6) Dictyomitra formosa Assemblage (Turonian to early Coniacian), 7) Artostrobium urna Assemblage (late Coniacian to early Campanian), 8) Amphipyndax tylotus Assemblage (late Campanian to Maastrichtian)., Article, 化石. 41:17-27 (1986)}, pages = {17--27}, title = {紀伊半島四万十累帯日高川層群の改訂ジュラ紀最後期 : 白亜紀放散虫化石群集}, volume = {41}, year = {1986} }