[Marine mammal fossils from Takasato, Fukushima Prefecture.] In: Y. Hasegawa (ed.), [Study on fossil marine mammals from Japan. (Subject of study) Studies on biostratigraphy and paleontology of Cenozoic marine mammals.]

Japan, Ministry of Education, Aid for Scientific Study, Synthetic Study A, Subject No. 61304010: 9-10. 1 fig. March 1988.