"Ryūkyūinseln." . . "Eozän." . . "Fossile Tiere." . . . . "From 40 to 55 million years ago" . . . . . . . . . . . . . . . . "Eocene megafossils from Ishigaki-shima, Ryūkyū-rettō : mollusks and a new subfamily of clypeasteroid echinoids are recorded from the Miyara Formation of Ishigaki-shima, a formation which previously has yielded only Foraminifera" . "Eocene megafossils from Ishigaki-shima, Ryūkyū-rettō" . . . . "Eocene megafossils from Ishigaki-shima Ryūkyū-rettō"@en . . . "\"Mollusks and a new subfamily of clypeasteroid echinoids are recorded from the Miyara Formation of Ishigaki-shima, a formation which previously has yielded only Foraminifera.\""@en . . . . "Ryukyu Islands" . .