organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Order Mysida Haworth, 1825 - mysids Family Petalophthalmidae Czerniavsky, 1882 1 Genus Petalophthalmus Willemoes-Suhm, 1874