Template:Endo, 1957
- Endo, R. 1957. Stratigraphical and Paleontological studies of the Later Paleozoic Calcareous Algae in Japan, XI. Fossil algae from the Taishaku district, Hiroshima-ken, and Kitami-no-kuni, Hokkaido. The Science Reports of the Saitama University, series B 2(3): 279–305.