Excentrosphaerella sphaeroconcha |
| Dumitrica, P., 1978a. Badenian Radiolaria from central Paratethys. Chronostratigraphie und Neostratotypen; Miozaen der Zentralen Paratethys, vol. 6, Brestenska, E. [ed.], VEDA, Verlag der Slowakischen Akademie der Wissenschaften, Bratislava, Czechoslovakia, 231-261. |
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| Sugiyama, K. and Furutani, H., 1992. Middle Miocene radiolarians from the Oidawara Formation, Mizunami Group, Gifu Prefecture, central Japan. Bulletin of the Mizunami Fossil Museum, Dr. Junji Itoigawa Memorial Volume [Mizunami-shi Kadeki Hakubutsukan Kenkyu Hokoku], vol. 19, 199-213. |
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