Miyajima, Y., H. Koike, and H. Matsuoka. “First Fossil Occurrence of a Filefish (Tetraodontiformes; Monacanthidae) in Asia, from the Middle Miocene in Nagano Prefecture, Central Japan”. Zootaxa, vol. 3786, no. 3, Apr. 2014, pp. 382–400, doi:10.11646/zootaxa.3786.3.7.