Phylum Bigyra Cavalier-Smith, 1998 Subphylum Sagenista Cavalier-Smith, 1995 Class Labyrinthulea Olive ex Cavalier-Smith, 1986 Order Labyrinthulida Lankester, 1877 - labyrinthulids Family Labyrinthulidae Cienkowski, 1867 [monotypic] 1 Genus Labyrinthula Cienkowski, 1867