organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Eukaryota Chatton, 1925 - eukaryotes Kingdom Chromista Caval.-Sm. (1981) - chromists Phylum Oomycota Arx (1967) Class Oomycetes G.Winter (1880) - oomycetes see Class Peronosporea Order Sclerosporales see Order Peronosporales Family Verrucalvaceae Genus Pachymetra B.J. Croft & M.W. Dick (1989)