Hexatrygon Heemstra [P. C.] & Smith [M. M.] 1980:1 Fem. Hexatrygon bickelli Heemstra & Smith 1980. Type by original designation (also monotypic). •Valid as Hexatrygon Heemstra & Smith 1980 -- (Nakaya in Masuda et al. 1984:15 [ref. 6441], Smith & Heemstra 1986:142 [ref. 5714], Shen 1986 [ref. 6381], Shen 1986 [ref. 8041], Nishida 1990:98 [ref. 19783], Compagno & Last 1999:1477 [ref. 24637], Compagno 1999:494 [ref. 25589], Hoese & Bray 2006:188 [ref. 29000], Compagno et al. 2005:69 [ref. 29145], Endo & Machida 2005:51 [ref. 30827], Schwartz 2008:28 [ref. 36773], Babu et al. 2011:137 [ref. 31420], Séret & Carvalho 2016:510 [ref. 35008], White et al. 2017:222 [ref. 35860], White & Ko'ou 2018:52 [ref. 35922], Fricke et al. 2019:44 [ref. 36673], Ebert et al. 2021:90 [ref. 38234]). Current status: Valid as Hexatrygon Heemstra & Smith 1980. Hexatrygonidae.