1. Composition and structure of Pliocene molluscan associations in the western part of Joetsu City, Niigata Prefecture;Amano;Fossils,1991
2. Molluscan fauna from the Tanihama Formation in the western part of Joetsu City. Studies on the molluscan fossils from the western part of Joetsu district, Niigata Prefecture (Part 2);Amano;Bulletin of Joetsu University of Education,1987
3. Molluscan fauna from the Nadachi Formation around Osuga Bridge in Nadachi Town, Nishikubiki-gun. Studies on the molluscan fossils from the western part of Joetsu district, Niigata Prefecture (Part 3);Amano;Bulletin of Joetsu University of Education,1988
4. Molluscan fauna from the Kawazume Formation in the western part of Joetsu City. Studies on the molluscan fossils from the western part of Joetsu district, Niigata Prefecture (Part 5);Amano;Bulletin of Joetsu University of Education,1990
5. Paleoceanographic conditions during the Middle Pliocene in the central part of Japan Sea Borderland. Molluscan fauna from the Kuwae Formation in Shibata City, Niigata Prefecture, central Japan;Amano;The Journal of Geological Society of Japan,2000