Euryplacidae is a family of crabs in the superfamily Goneplacoidea which contains the following genera:†Baldoplax Beschin & De Angeli, 2011 †Chirinocarcinus Karasawa & Schweitzer, 2004 †Chlinocephalus Ristori, 1886 †Corallioplax Beschin, Busulini, Tessier & Zorzin, 2016 Eucrate De Haan, 1835 Euryplax Stimpson, 1859 Frevillea A. Milne-Edwards, 1880 Henicoplax Castro & Ng, 2010 Heteroplax Stimpson, 1858 Machaerus Leach, 1818 Nancyplax Lemaitre, García-Gómez, von Sternberg & Campos, 2001 Nectopanope Wood-Mason in Wood-Mason & Alcock, 1891 †Orbitoplax Tucker & Feldmann, 1990 †Paleopsopheticus Hu & Tao, 1996 Platyozius Borradaile, 1902 †Prealpiplax Beschin, Busulini, Tessier & Zorzin, 2016 Psopheticoides Sakai, 1969 †Simonellia Vinassa de Regny, 1897 †Stoaplax Vega, Cosma, Coutiño, Feldmann, Nyborg, Schweitzer & Waugh, 2001 Systroplax Castro & Ng, 2010 Trissoplax Castro & Ng, 2010 Trizocarcinus Rathbun, 1914 †Verarena Beschin, Busulini & Tessier in Beschin, Busulini, Tessier & Zorzin, 2019 †Viaplax Karasawa & Kato, 2003 Villoplax Castro & Ng, 2010 Xenocrate Ng & Castro, 2007