Euryplacidae

Euryplacidae is a family of crabs in the superfamily Goneplacoidea which consists of 14 existing genera and 31 existing species and 8 fossil genera and 15 fossil species.

Genera
There are 14 currently recognised extant genera in the family Euryplacidae:

† = Extinct
 * 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
 * Platyozius Borradaile, 1902
 * Psopheticoides Sakai, 1969
 * Systroplax Castro & Ng, 2010
 * Trissoplax Castro & Ng, 2010
 * Trizocarcinus Rathbun, 1914
 * Villoplax Castro & Ng, 2010
 * Xenocrate Ng & Castro, 2007
 * †Chirinocarcinus Karasawa & Schweitzer, 2004
 * †Chlinocephalus Ristori, 1886
 * †Corallicarcinus Müller & Collins, 1991
 * †Orbitoplax Tucker & Feldmann, 1990
 * †Palaeopsopheticus Hu & Tao, 1996
 * †Simonellia Vinassa de Regny, 1897
 * †Stoaplax Vega, Cosma, Coutiño, Feldmann, Nyborg, Schweitzer & Waugh, 2001
 * †Viaplax Karasawa & Kato, 2003