- Bulletin of the National Science Museum Ser. C Geology & Paleontology (ISSN:0385244X)
- vol.20, no.3, pp.p109-117, 1994-09
A fossil slender mola from the Middle Miocene Hiranita Formation, Chi-chibumachi Group, Saitama Prefecture, Japan is described as a new species Ranzania ogaii in the family Molidae (Tetraodontiformes). This new species is characterized by having closely attached, long neural spines in the caudal vertebrae and unique scale plates that have a single prominent tubercle at the center of each regularly-shaped, polygonal scale plate in the middle of the body.