Family-group names of fossil fishes Author Laan, Richard Van Der text European Journal of Taxonomy 2018 2018-10-11 466 1 167 http://dx.doi.org/10.5852/ejt.2018.466 journal article 10.5852/ejt.2018.466 2118-9773 5557557 1F74D019-D13C-426F-835A-24A9A1126C55 Family † Eugaleaspididae Liu 1980 , spelling in prevailing recent practice †Galeaspidae Liu 1965: 125, 130 (family) † Galeaspis Liu 1965 [ type genus preoccupied by † Galeaspis Ivshin 1955 in Trilobita ; invalid, Art. 39] †Liuaspidinidae [†Liuaspididae] Whitley 1976: 48 (family) † Liuaspis Whitley 1976 [ type genus preoccupied by Liuaspis Borchsenius 1960 in Hemiptera ; invalid, Art. 39] †Eugaleaspidae Liu 1980: 256 (family) † Eugaleaspis Liu 1980 [family name also seen as † Eugaleaspididae ] †Tridensaspidae Liu 1986: 2 , 9 (family) † Tridensaspis Liu 1986 [family name sometimes seen as †Tridensaspididae]