Description from Chiji, M. (1961). Neogene biostratigraphy of the Toyama sedimentary basin, Japan Sea coast. Bulletin of Osaka Museum of Natural History. 14: 1-88.Author Hayward, Bruce W.JPG file - 280.86 kB - 1 216 x 440 pixels
Extra information Original Width: 1216 pixels Original Height: 440 pixels Orientation: 1: Horizontal (normal)