Template:Endo, 1961
- Endo, R. 1961. Stratigraphical and Paleontological studies of the Later Paleozoic Calcareous Algae in Japan, XVI. Fossil algae from the Ominagahama district. The Science Reports of the Saitama University, series B, Commemorative Volume dedicated to Professor Riuji Endo: 77–118.