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 † Ptycholepididae Brough 1939 , spelling in prevailing recent practice † Ptycholepidae Brough 1939: 57 (family) † Ptycholepis Agassiz 1832 [family name also seen as † Ptycholepididae ] †Boreosomidae Gardiner 1967: 177 (family) † Boreosomus Stensiö 1921