Nomenclator Zoologicus has separate entries for "Dyofrondicularia Asano 1935, Japan. J. Geol. Geogr., 13, 325" and "Dyofrondicularia Asano 1936, Japan. J. Geol. Geogr., 13, 325"; it is presumed that only one of these (the second) is correct. Another reference is given to Asano 1936, J. geol. Soc. Japan, 43, listed as a nomen nudum "[n.n.]".